/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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_8-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:23:11,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:23:11,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:23:11,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:23:11,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:23:11,974 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:23:11,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:23:11,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:23:11,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:23:11,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:23:11,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:23:11,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:23:11,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:23:11,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:23:11,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:23:11,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:23:11,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:23:11,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:23:12,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:23:12,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:23:12,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:23:12,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:23:12,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:23:12,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:23:12,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:23:12,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:23:12,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:23:12,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:23:12,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:23:12,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:23:12,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:23:12,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:23:12,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:23:12,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:23:12,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:23:12,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:23:12,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:23:12,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:23:12,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:23:12,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:23:12,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:23:12,033 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 [2020-09-21 12:23:12,082 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:23:12,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:23:12,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:23:12,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:23:12,085 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:23:12,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:23:12,085 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:23:12,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:23:12,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:23:12,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:23:12,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:23:12,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:23:12,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:23:12,088 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:23:12,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:23:12,088 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:23:12,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:23:12,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:23:12,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:23:12,089 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:23:12,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:23:12,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:23:12,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:23:12,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:23:12,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:23:12,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:23:12,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:23:12,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:23:12,091 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:23:12,091 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.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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:23:12,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:23:12,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:23:12,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:23:12,569 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:23:12,569 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:23:12,571 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-2.c [2020-09-21 12:23:12,665 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e001f029/f5e4b159956c476b88731b69e8b30a7a/FLAG57c46b0d7 [2020-09-21 12:23:13,215 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:23:13,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-2.c [2020-09-21 12:23:13,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e001f029/f5e4b159956c476b88731b69e8b30a7a/FLAG57c46b0d7 [2020-09-21 12:23:13,559 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e001f029/f5e4b159956c476b88731b69e8b30a7a [2020-09-21 12:23:13,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:23:13,578 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:23:13,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:23:13,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:23:13,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:23:13,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:23:13" (1/1) ... [2020-09-21 12:23:13,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e64c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:13, skipping insertion in model container [2020-09-21 12:23:13,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:23:13" (1/1) ... [2020-09-21 12:23:13,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:23:13,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:23:13,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:23:13,878 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:23:13,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:23:13,919 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:23:13,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:13 WrapperNode [2020-09-21 12:23:13,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:23:13,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:23:13,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:23:13,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:23:13,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:13" (1/1) ... [2020-09-21 12:23:13,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:13" (1/1) ... [2020-09-21 12:23:13,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:13" (1/1) ... [2020-09-21 12:23:13,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:13" (1/1) ... [2020-09-21 12:23:14,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:13" (1/1) ... [2020-09-21 12:23:14,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:13" (1/1) ... [2020-09-21 12:23:14,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:13" (1/1) ... [2020-09-21 12:23:14,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:23:14,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:23:14,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:23:14,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:23:14,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:23:14,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:23:14,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:23:14,118 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-21 12:23:14,118 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-21 12:23:14,118 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:23:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:23:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:23:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-21 12:23:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-21 12:23:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:23:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:23:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:23:14,381 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:23:14,381 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 12:23:14,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:23:14 BoogieIcfgContainer [2020-09-21 12:23:14,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:23:14,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:23:14,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:23:14,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:23:14,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:23:13" (1/3) ... [2020-09-21 12:23:14,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566da70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:23:14, skipping insertion in model container [2020-09-21 12:23:14,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:23:13" (2/3) ... [2020-09-21 12:23:14,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566da70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:23:14, skipping insertion in model container [2020-09-21 12:23:14,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:23:14" (3/3) ... [2020-09-21 12:23:14,423 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-2.c [2020-09-21 12:23:14,441 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:23:14,454 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:23:14,476 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:23:14,506 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:23:14,506 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:23:14,506 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:23:14,506 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:23:14,507 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:23:14,507 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:23:14,507 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:23:14,507 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:23:14,529 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-09-21 12:23:14,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-21 12:23:14,536 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:14,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:14,538 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:14,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:14,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1464461757, now seen corresponding path program 1 times [2020-09-21 12:23:14,554 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:14,554 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160288658] [2020-09-21 12:23:14,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:14,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:14,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:14,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:14,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 12:23:14,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:23:14,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-09-21 12:23:14,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:14,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:14,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:14,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:14,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-21 12:23:14,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:14,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:14,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:14,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:14,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:14,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:14,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:14,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:14,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:14,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:14,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:14,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:14,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:14,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:14,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:14,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:14,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 12:23:14,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:14,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:14,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:14,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:15,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:23:15,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160288658] [2020-09-21 12:23:15,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:23:15,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:23:15,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977715469] [2020-09-21 12:23:15,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:23:15,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:15,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:23:15,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:23:15,030 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-09-21 12:23:15,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:15,181 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2020-09-21 12:23:15,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:23:15,184 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-21 12:23:15,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:15,199 INFO L225 Difference]: With dead ends: 44 [2020-09-21 12:23:15,200 INFO L226 Difference]: Without dead ends: 30 [2020-09-21 12:23:15,205 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 [2020-09-21 12:23:15,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-21 12:23:15,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-21 12:23:15,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-21 12:23:15,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-09-21 12:23:15,267 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2020-09-21 12:23:15,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:15,268 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-09-21 12:23:15,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:23:15,268 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-09-21 12:23:15,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-21 12:23:15,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:15,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:15,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:23:15,271 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:15,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:15,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1134800479, now seen corresponding path program 1 times [2020-09-21 12:23:15,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:15,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165284098] [2020-09-21 12:23:15,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:15,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:15,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:15,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:15,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 12:23:15,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:23:15,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-09-21 12:23:15,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 12:23:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 12:23:15,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:15,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:15,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:15,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:15,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:15,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:15,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:15,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:15,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:15,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:15,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:15,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:15,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:15,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:15,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:15,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:15,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:15,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-21 12:23:15,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:15,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 12:23:15,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:15,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:15,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:15,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:23:15,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165284098] [2020-09-21 12:23:15,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:23:15,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:23:15,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271892705] [2020-09-21 12:23:15,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:23:15,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:15,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:23:15,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:23:15,537 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-09-21 12:23:15,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:15,557 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-09-21 12:23:15,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:23:15,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-21 12:23:15,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:15,560 INFO L225 Difference]: With dead ends: 36 [2020-09-21 12:23:15,560 INFO L226 Difference]: Without dead ends: 32 [2020-09-21 12:23:15,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:23:15,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-21 12:23:15,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-09-21 12:23:15,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-21 12:23:15,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-09-21 12:23:15,572 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2020-09-21 12:23:15,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:15,572 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-09-21 12:23:15,572 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:23:15,572 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-09-21 12:23:15,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-21 12:23:15,574 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:15,574 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:15,574 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:23:15,574 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:15,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:15,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1592795560, now seen corresponding path program 1 times [2020-09-21 12:23:15,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:15,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845637382] [2020-09-21 12:23:15,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:15,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:15,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:15,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:16,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-21 12:23:16,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:23:16,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-21 12:23:16,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:16,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:16,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 12:23:16,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:16,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:16,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:16,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:16,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:16,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:16,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:23:16,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:16,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:16,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:16,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:16,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:16,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:16,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:16,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 12:23:16,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:16,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-21 12:23:16,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:16,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:16,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 12:23:16,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:16,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:16,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:16,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:16,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:16,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:16,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:23:16,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:16,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:16,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:16,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:16,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:16,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:23:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:16,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:16,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:16,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:16,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:23:16,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:16,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:16,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:16,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:16,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:16,771 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:23:16,771 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845637382] [2020-09-21 12:23:16,772 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:16,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 12:23:16,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135720179] [2020-09-21 12:23:16,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:23:16,778 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:16,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:23:16,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:23:16,780 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 6 states. [2020-09-21 12:23:16,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:16,904 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2020-09-21 12:23:16,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:23:16,905 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-09-21 12:23:16,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:16,907 INFO L225 Difference]: With dead ends: 58 [2020-09-21 12:23:16,907 INFO L226 Difference]: Without dead ends: 34 [2020-09-21 12:23:16,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:23:16,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-21 12:23:16,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-09-21 12:23:16,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-21 12:23:16,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-09-21 12:23:16,930 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2020-09-21 12:23:16,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:16,931 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-09-21 12:23:16,931 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:23:16,931 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-09-21 12:23:16,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-21 12:23:16,936 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:16,936 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:16,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:23:16,937 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:16,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:16,937 INFO L82 PathProgramCache]: Analyzing trace with hash 746633022, now seen corresponding path program 1 times [2020-09-21 12:23:16,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:16,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103904513] [2020-09-21 12:23:16,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:16,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:16,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:17,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:17,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:17,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 12:23:17,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:17,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 676 [2020-09-21 12:23:17,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:17,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:17,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:17,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 12:23:17,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:17,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:17,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:17,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:17,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:17,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:17,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:23:17,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:17,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:17,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:17,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:17,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:17,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:17,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:17,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:17,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:17,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:17,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:23:17,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-21 12:23:17,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:17,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:17,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:17,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:17,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:17,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:17,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:17,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:17,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:17,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:17,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:17,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 12:23:17,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:17,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:17,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:17,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:17,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:17,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:18,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:18,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:18,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:18,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:18,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 12:23:18,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:18,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:18,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:18,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:18,022 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 12:23:18,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103904513] [2020-09-21 12:23:18,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:18,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:23:18,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61059597] [2020-09-21 12:23:18,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:23:18,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:18,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:23:18,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:23:18,027 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 7 states. [2020-09-21 12:23:18,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:18,218 INFO L93 Difference]: Finished difference Result 43 states and 55 transitions. [2020-09-21 12:23:18,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:23:18,219 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-09-21 12:23:18,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:18,221 INFO L225 Difference]: With dead ends: 43 [2020-09-21 12:23:18,221 INFO L226 Difference]: Without dead ends: 39 [2020-09-21 12:23:18,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:23:18,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-09-21 12:23:18,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2020-09-21 12:23:18,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-21 12:23:18,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2020-09-21 12:23:18,247 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 27 [2020-09-21 12:23:18,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:18,247 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2020-09-21 12:23:18,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:23:18,248 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2020-09-21 12:23:18,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-09-21 12:23:18,253 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:18,253 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-21 12:23:18,253 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:23:18,254 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:18,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:18,254 INFO L82 PathProgramCache]: Analyzing trace with hash 986908919, now seen corresponding path program 1 times [2020-09-21 12:23:18,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:18,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [376559403] [2020-09-21 12:23:18,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:18,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:18,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:18,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:18,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:18,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:19,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:19,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:19,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:19,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-21 12:23:19,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:23:19,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:19,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:19,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:19,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 12:23:19,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:19,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:19,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:19,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:19,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:19,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:19,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:19,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:19,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:19,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:19,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:19,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:19,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:19,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:19,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:20,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-21 12:23:20,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:23:20,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 870 [2020-09-21 12:23:20,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:20,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:20,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-21 12:23:20,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:20,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:20,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:20,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:20,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-21 12:23:20,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:20,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-21 12:23:20,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:20,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:20,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 12:23:20,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:20,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:20,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:20,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:20,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:20,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:20,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:23:20,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:20,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:20,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:20,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:20,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:20,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 12:23:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:20,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:20,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:20,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:20,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:20,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:20,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:20,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:20,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:20,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:20,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-21 12:23:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:20,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:20,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:20,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:20,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:23:20,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:20,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:20,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:20,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:20,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:20,323 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 12:23:20,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [376559403] [2020-09-21 12:23:20,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:20,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 12:23:20,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363320562] [2020-09-21 12:23:20,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 12:23:20,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:20,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 12:23:20,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:23:20,326 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand 6 states. [2020-09-21 12:23:20,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:20,413 INFO L93 Difference]: Finished difference Result 70 states and 100 transitions. [2020-09-21 12:23:20,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 12:23:20,413 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-09-21 12:23:20,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:20,415 INFO L225 Difference]: With dead ends: 70 [2020-09-21 12:23:20,415 INFO L226 Difference]: Without dead ends: 39 [2020-09-21 12:23:20,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:23:20,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-09-21 12:23:20,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-09-21 12:23:20,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-21 12:23:20,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2020-09-21 12:23:20,426 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 39 [2020-09-21 12:23:20,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:20,426 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-09-21 12:23:20,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 12:23:20,427 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2020-09-21 12:23:20,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-21 12:23:20,428 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:20,428 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:20,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:23:20,429 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:20,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:20,429 INFO L82 PathProgramCache]: Analyzing trace with hash -2100495745, now seen corresponding path program 1 times [2020-09-21 12:23:20,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:20,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502373417] [2020-09-21 12:23:20,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:20,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:20,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:21,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:21,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:21,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:21,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-21 12:23:21,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:23:21,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:21,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:21,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:21,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-21 12:23:21,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:21,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:21,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:21,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:21,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:21,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:21,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:21,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:21,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:21,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:21,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:21,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:21,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:21,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:21,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:21,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:21,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:21,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:21,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:22,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:22,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-21 12:23:22,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:23:22,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:22,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:22,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:22,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:22,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-21 12:23:22,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:22,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:22,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:22,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:22,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:22,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:22,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-21 12:23:22,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:22,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:22,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:22,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:22,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:22,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:22,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:22,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:22,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:22,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:22,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:23:22,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:22,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:22,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:22,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:22,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:22,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:22,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:22,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:22,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:22,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:22,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:23:22,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:22,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:22,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:22,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:22,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:22,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:22,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:22,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:22,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:22,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:22,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:22,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:22,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:22,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:22,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:22,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:22,594 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-21 12:23:22,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502373417] [2020-09-21 12:23:22,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:22,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:23:22,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25493143] [2020-09-21 12:23:22,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:23:22,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:22,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:23:22,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:23:22,598 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand 7 states. [2020-09-21 12:23:22,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:22,732 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2020-09-21 12:23:22,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:23:22,732 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-09-21 12:23:22,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:22,734 INFO L225 Difference]: With dead ends: 49 [2020-09-21 12:23:22,734 INFO L226 Difference]: Without dead ends: 45 [2020-09-21 12:23:22,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:23:22,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-21 12:23:22,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2020-09-21 12:23:22,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-21 12:23:22,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2020-09-21 12:23:22,744 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 40 [2020-09-21 12:23:22,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:22,745 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-09-21 12:23:22,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:23:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2020-09-21 12:23:22,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-09-21 12:23:22,746 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:22,747 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-09-21 12:23:22,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:23:22,747 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:22,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:22,748 INFO L82 PathProgramCache]: Analyzing trace with hash 208191613, now seen corresponding path program 1 times [2020-09-21 12:23:22,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:22,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1053564827] [2020-09-21 12:23:22,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:22,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:22,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:22,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:23,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-21 12:23:23,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:23:23,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:23:23,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:23,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:23,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:23,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 12:23:23,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:23,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:23,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:23,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:23,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:23,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:23,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:23,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:23,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:23,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:23,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:23,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:23,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:23,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:24,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:24,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:24,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:24,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:23:24,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:24,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:24,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:24,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:23:24,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:24,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:24,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:24,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:24,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:24,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:24,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 12:23:24,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:24,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:24,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:24,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:24,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:24,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:24,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:24,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:24,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:24,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:24,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:23:24,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:24,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:24,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:24,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:24,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:24,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:24,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:24,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:24,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:24,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:24,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:23:24,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:24,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:24,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:24,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:24,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:24,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:24,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:24,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:24,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:24,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:24,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:23:24,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:24,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:24,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:24,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:24,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:24,941 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-21 12:23:24,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1053564827] [2020-09-21 12:23:24,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:24,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 12:23:24,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431811111] [2020-09-21 12:23:24,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 12:23:24,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:24,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 12:23:24,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-21 12:23:24,946 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand 7 states. [2020-09-21 12:23:25,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:25,087 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2020-09-21 12:23:25,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:23:25,088 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 41 [2020-09-21 12:23:25,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:25,089 INFO L225 Difference]: With dead ends: 46 [2020-09-21 12:23:25,090 INFO L226 Difference]: Without dead ends: 42 [2020-09-21 12:23:25,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-21 12:23:25,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-21 12:23:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2020-09-21 12:23:25,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-21 12:23:25,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2020-09-21 12:23:25,110 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 41 [2020-09-21 12:23:25,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:25,111 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2020-09-21 12:23:25,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 12:23:25,111 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2020-09-21 12:23:25,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-21 12:23:25,116 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:25,117 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:25,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:23:25,117 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:25,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:25,118 INFO L82 PathProgramCache]: Analyzing trace with hash 794281190, now seen corresponding path program 1 times [2020-09-21 12:23:25,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:25,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152773389] [2020-09-21 12:23:25,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:25,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:25,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:25,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:25,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:25,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:25,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:25,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:25,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:26,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:26,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-21 12:23:26,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:23:26,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:23:26,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:26,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:23:26,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:26,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-21 12:23:26,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:26,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:26,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:26,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:26,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:26,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:26,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:26,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:26,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:26,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:26,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:26,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:26,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:26,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:26,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:26,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:26,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:26,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:26,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:26,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:26,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:27,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-21 12:23:27,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:23:27,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1013 [2020-09-21 12:23:27,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:27,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:23:27,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:27,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 12:23:27,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:27,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:27,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:27,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:27,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:27,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-21 12:23:27,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:23:27,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:27,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:27,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:27,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:27,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:27,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:27,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:23:27,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:27,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:27,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:27,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:27,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:27,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:27,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:27,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:27,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:27,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:23:27,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:27,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:27,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:27,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:27,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:27,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:27,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:27,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:27,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:27,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-21 12:23:27,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:27,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:27,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:27,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:27,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:27,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:27,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:27,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:23:27,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:27,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:27,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:27,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:27,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:27,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:27,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:27,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:27,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:27,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:27,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:23:27,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:27,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:27,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:27,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:27,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:27,861 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-21 12:23:27,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152773389] [2020-09-21 12:23:27,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:27,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 12:23:27,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674123351] [2020-09-21 12:23:27,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 12:23:27,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:27,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 12:23:27,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:23:27,864 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand 10 states. [2020-09-21 12:23:28,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:28,147 INFO L93 Difference]: Finished difference Result 84 states and 129 transitions. [2020-09-21 12:23:28,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 12:23:28,148 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 54 [2020-09-21 12:23:28,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:28,150 INFO L225 Difference]: With dead ends: 84 [2020-09-21 12:23:28,150 INFO L226 Difference]: Without dead ends: 51 [2020-09-21 12:23:28,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-09-21 12:23:28,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-21 12:23:28,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-09-21 12:23:28,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-21 12:23:28,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2020-09-21 12:23:28,168 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 54 [2020-09-21 12:23:28,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:28,168 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2020-09-21 12:23:28,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 12:23:28,169 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2020-09-21 12:23:28,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-09-21 12:23:28,170 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:28,170 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:28,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:23:28,171 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:28,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:28,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1252569501, now seen corresponding path program 1 times [2020-09-21 12:23:28,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:28,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431786014] [2020-09-21 12:23:28,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:28,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:28,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:28,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:28,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:28,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:29,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-09-21 12:23:29,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:23:29,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:23:29,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:29,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:23:29,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-21 12:23:29,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 12:23:29,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:29,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:29,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:29,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:29,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:29,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:29,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:29,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:29,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:29,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:29,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:29,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:29,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:29,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:30,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-21 12:23:30,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-21 12:23:30,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1017 [2020-09-21 12:23:30,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:30,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:23:30,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:23:30,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 12:23:30,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:30,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:30,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:30,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:31,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-21 12:23:31,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:23:31,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 993 [2020-09-21 12:23:31,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:31,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:23:31,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:31,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-21 12:23:31,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:31,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:31,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:31,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:31,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:31,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-21 12:23:31,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:31,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:31,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:31,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:23:31,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:31,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:31,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:31,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:31,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:31,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:23:31,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:31,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:31,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:31,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:31,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:31,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:31,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:31,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:31,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:31,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:23:31,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:31,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:31,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:31,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:31,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:31,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:31,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:31,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:31,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:31,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 12:23:31,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:31,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:31,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:31,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:31,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:31,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 12:23:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:31,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:31,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:32,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:32,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-21 12:23:32,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:23:32,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-21 12:23:32,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:32,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:32,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-21 12:23:32,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:32,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:32,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:32,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:32,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:32,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:32,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:32,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 12:23:32,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:32,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:32,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:32,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:32,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:32,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:32,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:32,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:32,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:32,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:32,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:23:32,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:32,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:32,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:32,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:32,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:32,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:32,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:32,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:32,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:32,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:32,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:23:32,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:32,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:32,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:32,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:32,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:32,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:32,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:32,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:32,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:32,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:32,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:23:32,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:32,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:32,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:32,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:32,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:32,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:32,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:32,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:32,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:32,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:32,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:23:32,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:32,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:32,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:32,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:32,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:32,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:32,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:32,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:32,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:32,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:32,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:23:32,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:32,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:32,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:32,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:32,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:32,761 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 24 proven. 47 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2020-09-21 12:23:32,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431786014] [2020-09-21 12:23:32,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:32,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 12:23:32,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227916608] [2020-09-21 12:23:32,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:23:32,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:32,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:23:32,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:23:32,770 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand 8 states. [2020-09-21 12:23:32,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:32,885 INFO L93 Difference]: Finished difference Result 99 states and 153 transitions. [2020-09-21 12:23:32,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 12:23:32,888 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2020-09-21 12:23:32,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:32,890 INFO L225 Difference]: With dead ends: 99 [2020-09-21 12:23:32,890 INFO L226 Difference]: Without dead ends: 54 [2020-09-21 12:23:32,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-21 12:23:32,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-21 12:23:32,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 51. [2020-09-21 12:23:32,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-09-21 12:23:32,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 69 transitions. [2020-09-21 12:23:32,902 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 69 transitions. Word has length 94 [2020-09-21 12:23:32,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:32,903 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 69 transitions. [2020-09-21 12:23:32,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:23:32,903 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 69 transitions. [2020-09-21 12:23:32,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-21 12:23:32,904 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:32,905 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:32,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:23:32,905 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:32,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:32,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1156896337, now seen corresponding path program 2 times [2020-09-21 12:23:32,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:32,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139208689] [2020-09-21 12:23:32,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:32,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:32,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:32,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:33,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:33,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:33,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-09-21 12:23:33,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:23:33,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:23:33,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:33,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:23:33,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:33,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 12:23:33,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:33,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:33,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:33,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:33,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:33,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:33,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:33,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:33,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:33,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:33,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:33,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:33,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:34,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:34,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:34,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:34,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:23:34,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:23:34,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:23:34,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:34,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:23:34,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:34,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:23:34,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:34,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:34,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:35,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:35,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:35,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:35,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:35,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:35,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:35,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:35,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:23:35,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:35,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:23:35,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:36,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:36,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:36,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:36,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:36,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:23:36,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:36,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:36,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:36,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:36,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:36,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:36,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:36,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:36,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:36,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:23:36,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:36,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:36,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:36,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:36,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:36,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:36,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:36,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:36,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:36,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:36,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:36,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:36,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:36,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:36,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 12:23:36,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:36,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:36,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:36,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:36,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:36,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:36,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:36,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:36,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:36,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:23:36,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:36,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:36,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:36,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:36,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:36,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:36,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:36,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:36,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:36,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:36,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:23:36,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:36,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:36,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:36,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:36,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:36,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:36,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:36,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:36,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:36,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:36,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:36,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:36,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:36,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:36,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:36,144 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 17 proven. 26 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-09-21 12:23:36,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139208689] [2020-09-21 12:23:36,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:36,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 12:23:36,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114859988] [2020-09-21 12:23:36,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:23:36,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:36,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:23:36,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:23:36,147 INFO L87 Difference]: Start difference. First operand 51 states and 69 transitions. Second operand 8 states. [2020-09-21 12:23:36,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:36,268 INFO L93 Difference]: Finished difference Result 66 states and 95 transitions. [2020-09-21 12:23:36,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:23:36,269 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-09-21 12:23:36,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:36,270 INFO L225 Difference]: With dead ends: 66 [2020-09-21 12:23:36,270 INFO L226 Difference]: Without dead ends: 62 [2020-09-21 12:23:36,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-21 12:23:36,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-21 12:23:36,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2020-09-21 12:23:36,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-21 12:23:36,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 74 transitions. [2020-09-21 12:23:36,280 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 74 transitions. Word has length 68 [2020-09-21 12:23:36,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:36,281 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 74 transitions. [2020-09-21 12:23:36,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:23:36,281 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 74 transitions. [2020-09-21 12:23:36,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-21 12:23:36,283 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:36,283 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:36,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 12:23:36,283 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:36,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:36,284 INFO L82 PathProgramCache]: Analyzing trace with hash -152987330, now seen corresponding path program 1 times [2020-09-21 12:23:36,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:36,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1855417819] [2020-09-21 12:23:36,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:36,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:36,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:37,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-21 12:23:37,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:23:37,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:23:37,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:23:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-21 12:23:37,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 12:23:37,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:37,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:37,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:37,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:37,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:37,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:37,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:37,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:37,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:37,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:37,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:37,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:37,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:37,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:38,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-21 12:23:38,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:23:38,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:38,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:38,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:23:38,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:23:38,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 12:23:38,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:38,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:38,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:38,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:39,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-21 12:23:39,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:23:39,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:39,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:39,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:23:39,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:39,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-21 12:23:39,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:39,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:39,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:39,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:39,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:39,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:39,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-21 12:23:39,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:39,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:39,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:39,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:23:39,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:39,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:39,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:39,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:39,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:39,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:23:39,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:39,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:39,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:39,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:39,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:39,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:39,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:39,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:39,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:39,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:39,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:39,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:39,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:39,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:39,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:39,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:39,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:39,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:39,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:39,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-21 12:23:39,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:39,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:23:39,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:39,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:39,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:39,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:39,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:39,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:39,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:39,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:39,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:39,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:39,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:39,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:39,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:39,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:39,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:39,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:39,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:39,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:39,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:23:39,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:39,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:39,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:39,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:39,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:39,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 12:23:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:39,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:39,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:40,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:40,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:40,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:40,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-09-21 12:23:40,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:23:40,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:23:40,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:40,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:40,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-21 12:23:40,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:40,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:40,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:40,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:40,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:40,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:40,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:40,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:40,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:40,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:40,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:40,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:40,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:40,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:40,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:40,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:40,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:40,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:40,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:40,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:40,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:40,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:40,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:40,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:40,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:40,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:40,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:40,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:40,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:40,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:40,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:40,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:40,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:40,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:40,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:23:40,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:40,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:40,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:40,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:40,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:40,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:40,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:40,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:40,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:40,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:40,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:40,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:40,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:40,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:40,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:40,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:40,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:40,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:40,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:40,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:40,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:40,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:40,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:40,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:40,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:40,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:40,971 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 32 proven. 83 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2020-09-21 12:23:40,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1855417819] [2020-09-21 12:23:40,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:40,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 12:23:40,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6495616] [2020-09-21 12:23:40,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 12:23:40,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:40,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 12:23:40,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 12:23:40,976 INFO L87 Difference]: Start difference. First operand 54 states and 74 transitions. Second operand 8 states. [2020-09-21 12:23:41,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:41,200 INFO L93 Difference]: Finished difference Result 112 states and 190 transitions. [2020-09-21 12:23:41,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 12:23:41,202 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2020-09-21 12:23:41,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:41,203 INFO L225 Difference]: With dead ends: 112 [2020-09-21 12:23:41,203 INFO L226 Difference]: Without dead ends: 64 [2020-09-21 12:23:41,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-09-21 12:23:41,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-09-21 12:23:41,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-09-21 12:23:41,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-09-21 12:23:41,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 93 transitions. [2020-09-21 12:23:41,227 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 93 transitions. Word has length 108 [2020-09-21 12:23:41,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:41,229 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 93 transitions. [2020-09-21 12:23:41,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 12:23:41,229 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 93 transitions. [2020-09-21 12:23:41,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-09-21 12:23:41,231 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:41,231 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 15, 14, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:41,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 12:23:41,235 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:41,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:41,235 INFO L82 PathProgramCache]: Analyzing trace with hash -2081490968, now seen corresponding path program 3 times [2020-09-21 12:23:41,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:41,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366246286] [2020-09-21 12:23:41,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:41,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:41,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:41,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:41,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:41,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:41,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:41,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:41,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:41,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:42,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 323 [2020-09-21 12:23:42,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-21 12:23:42,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1013 [2020-09-21 12:23:42,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:42,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 12:23:42,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-21 12:23:42,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 12:23:42,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:42,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:42,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:42,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:42,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:42,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:42,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:42,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:42,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:42,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:42,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:42,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:42,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:42,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:43,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 311 [2020-09-21 12:23:43,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-21 12:23:43,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1015 [2020-09-21 12:23:43,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:43,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 12:23:43,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:23:43,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-21 12:23:43,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:43,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:43,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:43,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:44,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:44,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-21 12:23:44,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:23:44,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:44,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:44,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:23:44,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:44,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-21 12:23:44,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:44,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:44,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:44,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:44,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:45,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:45,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:45,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:45,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:45,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:45,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:45,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:45,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:23:45,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:45,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:45,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:45,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:45,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:45,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:45,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:45,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:23:45,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:45,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:45,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:45,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:45,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:45,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:45,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:45,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:45,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:45,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:45,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:45,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:45,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:45,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:45,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:45,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:45,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:45,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:45,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:45,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:45,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:45,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:45,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:45,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:45,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:45,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:45,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:45,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:45,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:45,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:45,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:45,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:45,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 12:23:45,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:45,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:45,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:45,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:45,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:45,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:45,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:45,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:45,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:45,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:45,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:46,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-21 12:23:46,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 14 [2020-09-21 12:23:46,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1005 [2020-09-21 12:23:46,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:46,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:23:46,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:46,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 12:23:46,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:46,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:46,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:46,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:47,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:23:47,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:23:47,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:47,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:47,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:23:47,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:47,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:47,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:47,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:23:47,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:47,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:47,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:47,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:47,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:47,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:47,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:47,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:47,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:47,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:47,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:47,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:47,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:47,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:47,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:47,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:47,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:47,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:47,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:47,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:47,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:47,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:23:47,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:47,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:47,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:47,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:47,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:47,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:47,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:47,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:48,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:48,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:23:48,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 740 [2020-09-21 12:23:48,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:48,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:48,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:48,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:23:48,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:48,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:48,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:48,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:48,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:48,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:23:48,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:48,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:48,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:48,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:48,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:48,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:48,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:48,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:48,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:48,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:48,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:48,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:48,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:48,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:48,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:48,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:48,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:48,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:48,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:48,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:23:48,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:48,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:48,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:48,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:48,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:48,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:48,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:48,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:23:48,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 12:23:48,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:48,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:48,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:48,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:48,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:48,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-09-21 12:23:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:48,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:48,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:49,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-21 12:23:49,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-21 12:23:49,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:23:49,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:49,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:23:49,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:49,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-21 12:23:49,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:49,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:49,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:49,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:50,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:50,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:50,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:50,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:23:50,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:23:50,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:50,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:50,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:50,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:50,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:50,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:50,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:23:50,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:50,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:50,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:50,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:50,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:50,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:50,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:50,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:50,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:50,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:50,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:50,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:50,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:50,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:50,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:50,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:50,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:50,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:50,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:50,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:50,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:50,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:50,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:50,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:50,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:50,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:50,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:50,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:50,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:50,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:50,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:50,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:50,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:23:50,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:50,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:50,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:50,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:50,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:50,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:50,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:50,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:50,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:50,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:50,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:51,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-21 12:23:51,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:23:51,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:51,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:51,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 12:23:51,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:51,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 12:23:51,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:51,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:51,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:51,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:52,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:52,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:52,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:23:52,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:52,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:52,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:52,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:52,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:23:52,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:52,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:52,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:52,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:52,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:52,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:52,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:23:52,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:52,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:52,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:52,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:52,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:52,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:52,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:52,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:52,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:52,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:52,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:52,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:52,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:52,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:52,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:52,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:52,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:52,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:52,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:52,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:52,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:52,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:52,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:52,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:52,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:52,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:52,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:52,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:52,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:52,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:52,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 12:23:52,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:52,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:52,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:52,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:52,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:52,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:52,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:52,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:52,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:52,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:52,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:53,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:53,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:23:53,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 974 [2020-09-21 12:23:53,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:53,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:23:53,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:53,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:53,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:53,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:53,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:53,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:23:53,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:53,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:53,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:53,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:23:53,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:53,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:53,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:53,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:53,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:53,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:53,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:53,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:53,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:53,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:53,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:53,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:53,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:53,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:53,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:53,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:53,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:53,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:53,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:53,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:53,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:53,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:53,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:53,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:53,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:53,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:53,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:23:53,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 12:23:53,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:53,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:53,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:53,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:53,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:54,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1608 backedges. 495 proven. 389 refuted. 0 times theorem prover too weak. 724 trivial. 0 not checked. [2020-09-21 12:23:54,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366246286] [2020-09-21 12:23:54,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:54,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-21 12:23:54,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399400960] [2020-09-21 12:23:54,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-21 12:23:54,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:54,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-21 12:23:54,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-09-21 12:23:54,020 INFO L87 Difference]: Start difference. First operand 64 states and 93 transitions. Second operand 16 states. [2020-09-21 12:23:54,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:23:54,717 INFO L93 Difference]: Finished difference Result 147 states and 272 transitions. [2020-09-21 12:23:54,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-21 12:23:54,718 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 246 [2020-09-21 12:23:54,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:23:54,720 INFO L225 Difference]: With dead ends: 147 [2020-09-21 12:23:54,720 INFO L226 Difference]: Without dead ends: 88 [2020-09-21 12:23:54,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 76 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2020-09-21 12:23:54,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-21 12:23:54,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 82. [2020-09-21 12:23:54,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-09-21 12:23:54,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2020-09-21 12:23:54,733 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 246 [2020-09-21 12:23:54,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:23:54,733 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2020-09-21 12:23:54,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-21 12:23:54,734 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2020-09-21 12:23:54,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-21 12:23:54,736 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:23:54,736 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 9, 9, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:23:54,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 12:23:54,737 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:23:54,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:23:54,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1302571822, now seen corresponding path program 4 times [2020-09-21 12:23:54,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:23:54,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208267892] [2020-09-21 12:23:54,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:23:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:54,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:54,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:54,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:54,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:54,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:54,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:55,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-21 12:23:55,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-21 12:23:55,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-21 12:23:55,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:55,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:23:55,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:23:55,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 12:23:55,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:55,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:23:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:55,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:55,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:23:55,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:55,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:55,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:55,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:55,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:55,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:55,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:55,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:23:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:55,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:55,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:56,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:56,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:56,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:56,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-21 12:23:56,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:23:56,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:23:56,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:56,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 12:23:56,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:23:56,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-09-21 12:23:56,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:56,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:56,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:56,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:56,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:57,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:57,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:57,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:57,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:23:57,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:23:57,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:57,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:57,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 12:23:57,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:57,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-21 12:23:57,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:57,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:57,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:57,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:57,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:57,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:57,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-21 12:23:57,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:57,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:57,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:57,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-21 12:23:57,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:57,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:57,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:57,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:57,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:57,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:57,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 12:23:57,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:57,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:57,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:57,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:57,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:57,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:57,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:57,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:57,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:57,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:57,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:23:57,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:57,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:57,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:57,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:57,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:57,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:57,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:57,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:57,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:57,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:57,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:57,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:57,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:57,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:57,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:57,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:58,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:58,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:58,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:58,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:58,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:23:58,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:58,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:58,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:58,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:58,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:58,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:58,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:58,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:58,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:23:58,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-21 12:23:58,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:58,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:23:58,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:58,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:23:58,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:58,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:58,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:58,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:58,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:58,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-21 12:23:58,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:58,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 12:23:58,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:58,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 12:23:58,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:58,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:58,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:58,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:58,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:58,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:23:58,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:58,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:58,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:58,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:58,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:58,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:23:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:58,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:58,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:59,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-21 12:23:59,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-21 12:23:59,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:23:59,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 12:23:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 12:23:59,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-21 12:23:59,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:59,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:59,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:59,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 12:23:59,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:59,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 12:23:59,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:59,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 12:23:59,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:59,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:59,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:59,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:23:59,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:59,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 12:23:59,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:59,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:59,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:59,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:59,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:59,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:59,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 12:23:59,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:59,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:59,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:59,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:59,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:59,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:59,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:59,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:59,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:59,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:59,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:59,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:59,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:59,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:59,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:59,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:59,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:59,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:23:59,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:59,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:59,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:59,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:59,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:59,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:23:59,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:59,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:59,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:59,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:59,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:23:59,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:59,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:59,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:59,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:59,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:59,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 12:23:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:59,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:59,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:59,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:59,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:23:59,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:59,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:59,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:59,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:59,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:59,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:59,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:59,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:59,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:59,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:59,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:59,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:59,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:59,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:59,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:59,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:59,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:23:59,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:59,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:23:59,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:59,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:23:59,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:23:59,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 12:23:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:59,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:59,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:23:59,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:23:59,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-21 12:23:59,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:23:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:59,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 12:23:59,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:59,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:23:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:59,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:59,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:23:59,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:59,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 12:23:59,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:59,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:59,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:59,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:23:59,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:59,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:23:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:23:59,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:23:59,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:23:59,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:23:59,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:23:59,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:23:59,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:23:59,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:23:59,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:23:59,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 12:23:59,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:23:59,995 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 142 proven. 130 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2020-09-21 12:23:59,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208267892] [2020-09-21 12:23:59,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 12:23:59,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-21 12:23:59,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438678888] [2020-09-21 12:23:59,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-21 12:23:59,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:23:59,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-21 12:23:59,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-09-21 12:23:59,999 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand 15 states. [2020-09-21 12:24:00,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:24:00,921 INFO L93 Difference]: Finished difference Result 225 states and 374 transitions. [2020-09-21 12:24:00,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-21 12:24:00,922 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 163 [2020-09-21 12:24:00,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:24:00,929 INFO L225 Difference]: With dead ends: 225 [2020-09-21 12:24:00,929 INFO L226 Difference]: Without dead ends: 135 [2020-09-21 12:24:00,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=614, Unknown=0, NotChecked=0, Total=756 [2020-09-21 12:24:00,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-21 12:24:00,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 119. [2020-09-21 12:24:00,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-09-21 12:24:00,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 170 transitions. [2020-09-21 12:24:00,988 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 170 transitions. Word has length 163 [2020-09-21 12:24:00,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:24:00,993 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 170 transitions. [2020-09-21 12:24:00,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-21 12:24:00,994 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 170 transitions. [2020-09-21 12:24:01,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-21 12:24:01,002 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:24:01,003 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:24:01,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 12:24:01,004 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:24:01,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:24:01,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1643058009, now seen corresponding path program 5 times [2020-09-21 12:24:01,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:24:01,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785602645] [2020-09-21 12:24:01,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:24:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:01,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:01,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:01,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:01,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:01,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:02,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-09-21 12:24:02,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:24:02,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-09-21 12:24:02,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:02,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:24:02,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:24:02,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-21 12:24:02,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:02,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:24:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:02,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:02,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:24:02,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:02,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:24:02,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:02,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:24:02,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:02,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:24:02,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:02,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-21 12:24:02,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:02,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:02,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:03,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-21 12:24:03,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-21 12:24:03,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-21 12:24:03,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:03,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:24:03,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 12:24:03,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 12:24:03,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:03,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:24:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:03,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:03,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:04,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:04,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-21 12:24:04,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-21 12:24:04,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-09-21 12:24:04,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:04,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 12:24:04,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 12:24:04,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 12:24:04,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:24:04,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:24:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:04,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:04,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:04,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:04,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:04,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:04,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:05,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:05,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-21 12:24:05,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:24:05,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-21 12:24:05,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:05,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 12:24:05,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:05,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-21 12:24:05,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:05,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:24:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:05,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:05,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:05,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-21 12:24:05,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:05,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 12:24:05,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:05,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:24:05,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:05,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-21 12:24:05,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:05,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 12:24:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:05,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:05,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:05,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 12:24:05,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:05,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:24:05,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:05,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:24:05,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:05,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:24:05,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:05,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 12:24:05,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:05,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:24:05,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:24:05,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 12:24:05,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:24:05,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:24:05,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:24:05,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:24:05,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:24:05,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:24:05,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:24:05,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-21 12:24:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:24:05,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking...