/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --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_5-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:47:19,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:47:19,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:47:20,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:47:20,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:47:20,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:47:20,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:47:20,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:47:20,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:47:20,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:47:20,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:47:20,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:47:20,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:47:20,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:47:20,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:47:20,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:47:20,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:47:20,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:47:20,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:47:20,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:47:20,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:47:20,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:47:20,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:47:20,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:47:20,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:47:20,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:47:20,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:47:20,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:47:20,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:47:20,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:47:20,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:47:20,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:47:20,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:47:20,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:47:20,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:47:20,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:47:20,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:47:20,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:47:20,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:47:20,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:47:20,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:47:20,066 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 [2020-09-24 23:47:20,093 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:47:20,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:47:20,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:47:20,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:47:20,095 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:47:20,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:47:20,096 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:47:20,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:47:20,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:47:20,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:47:20,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:47:20,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:47:20,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:47:20,097 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:47:20,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:47:20,097 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:47:20,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:47:20,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:47:20,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:47:20,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:47:20,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:47:20,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:47:20,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:47:20,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:47:20,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:47:20,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:47:20,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:47:20,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:47:20,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:47:20,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-24 23:47:20,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:47:20,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:47:20,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:47:20,589 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:47:20,589 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:47:20,591 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_5-2.c [2020-09-24 23:47:20,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f13a84920/53a66b2f288546cc916445936cd909a0/FLAG42837b99d [2020-09-24 23:47:21,227 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:47:21,227 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_5-2.c [2020-09-24 23:47:21,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f13a84920/53a66b2f288546cc916445936cd909a0/FLAG42837b99d [2020-09-24 23:47:21,574 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f13a84920/53a66b2f288546cc916445936cd909a0 [2020-09-24 23:47:21,589 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:47:21,595 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:47:21,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:47:21,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:47:21,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:47:21,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:47:21" (1/1) ... [2020-09-24 23:47:21,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d4521a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:21, skipping insertion in model container [2020-09-24 23:47:21,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:47:21" (1/1) ... [2020-09-24 23:47:21,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:47:21,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:47:21,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:47:21,855 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:47:21,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:47:21,889 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:47:21,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:21 WrapperNode [2020-09-24 23:47:21,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:47:21,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:47:21,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:47:21,891 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:47:21,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:21" (1/1) ... [2020-09-24 23:47:21,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:21" (1/1) ... [2020-09-24 23:47:21,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:21" (1/1) ... [2020-09-24 23:47:21,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:21" (1/1) ... [2020-09-24 23:47:21,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:21" (1/1) ... [2020-09-24 23:47:21,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:21" (1/1) ... [2020-09-24 23:47:21,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:21" (1/1) ... [2020-09-24 23:47:21,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:47:21,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:47:21,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:47:21,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:47:21,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:21" (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 [2020-09-24 23:47:22,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:47:22,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:47:22,079 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-24 23:47:22,079 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:47:22,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:47:22,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:47:22,079 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-24 23:47:22,080 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:47:22,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:47:22,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:47:22,294 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:47:22,294 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 23:47:22,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:47:22 BoogieIcfgContainer [2020-09-24 23:47:22,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:47:22,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:47:22,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:47:22,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:47:22,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:47:21" (1/3) ... [2020-09-24 23:47:22,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52522039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:47:22, skipping insertion in model container [2020-09-24 23:47:22,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:47:21" (2/3) ... [2020-09-24 23:47:22,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52522039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:47:22, skipping insertion in model container [2020-09-24 23:47:22,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:47:22" (3/3) ... [2020-09-24 23:47:22,311 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_5-2.c [2020-09-24 23:47:22,323 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:47:22,334 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:47:22,363 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:47:22,424 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:47:22,425 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:47:22,425 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:47:22,425 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:47:22,425 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:47:22,425 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:47:22,426 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:47:22,426 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:47:22,460 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-24 23:47:22,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 23:47:22,476 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:22,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:22,481 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:22,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:22,489 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-24 23:47:22,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:22,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2079849031] [2020-09-24 23:47:22,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:22,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:22,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:22,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:22,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 23:47:22,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:47:22,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-24 23:47:22,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:22,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:47:22,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:22,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:47:22,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:47:22,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:22,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:22,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:22,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:22,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:22,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:47:22,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:22,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:22,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:22,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:22,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:22,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:22,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:22,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:47:22,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:22,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:47:22,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:47:22,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:22,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:23,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:47:23,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2079849031] [2020-09-24 23:47:23,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:47:23,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:47:23,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086015833] [2020-09-24 23:47:23,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:47:23,044 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:47:23,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:47:23,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:47:23,062 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-24 23:47:23,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:47:23,165 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-24 23:47:23,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:47:23,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 23:47:23,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:47:23,182 INFO L225 Difference]: With dead ends: 44 [2020-09-24 23:47:23,183 INFO L226 Difference]: Without dead ends: 28 [2020-09-24 23:47:23,188 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 [2020-09-24 23:47:23,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-24 23:47:23,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-24 23:47:23,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 23:47:23,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 23:47:23,248 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-24 23:47:23,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:47:23,249 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 23:47:23,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:47:23,249 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 23:47:23,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 23:47:23,252 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:23,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:23,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:47:23,253 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:23,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:23,253 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-24 23:47:23,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:23,254 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987064475] [2020-09-24 23:47:23,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:23,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:23,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:23,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:23,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:47:23,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:47:23,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-24 23:47:23,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:23,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:47:23,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:23,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:23,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:23,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:23,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:23,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:23,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:23,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:23,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:47:23,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:23,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:23,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:23,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:23,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:47:23,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:23,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:23,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:23,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:23,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:23,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 23:47:23,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:47:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:47:23,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:47:23,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:23,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:47:23,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987064475] [2020-09-24 23:47:23,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:47:23,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:47:23,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899142818] [2020-09-24 23:47:23,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:47:23,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:47:23,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:47:23,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:47:23,579 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-24 23:47:23,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:47:23,648 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-24 23:47:23,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:47:23,649 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 23:47:23,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:47:23,651 INFO L225 Difference]: With dead ends: 36 [2020-09-24 23:47:23,651 INFO L226 Difference]: Without dead ends: 30 [2020-09-24 23:47:23,653 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 [2020-09-24 23:47:23,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-24 23:47:23,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-24 23:47:23,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 23:47:23,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-24 23:47:23,662 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-24 23:47:23,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:47:23,662 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-24 23:47:23,663 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:47:23,663 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-24 23:47:23,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 23:47:23,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:23,665 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:23,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:47:23,666 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:23,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:23,666 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-24 23:47:23,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:23,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [875728638] [2020-09-24 23:47:23,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:23,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:23,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:23,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:24,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:25,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:25,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 23:47:25,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:47:25,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2029 [2020-09-24 23:47:25,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:25,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:47:25,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:25,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-24 23:47:25,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:25,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:25,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:25,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:25,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:25,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:25,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:47:25,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:25,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:25,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:25,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:25,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:25,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:25,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:25,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:25,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:25,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:25,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:47:25,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:47:25,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-09-24 23:47:25,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:25,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:47:25,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:47:25,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:47:25,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:25,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:25,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:26,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:26,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:26,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:26,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 23:47:26,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:26,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:26,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:47:26,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:26,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:47:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:26,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:26,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:26,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:26,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:26,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:47:26,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:26,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:26,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:26,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:26,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:26,068 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 23:47:26,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [875728638] [2020-09-24 23:47:26,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:47:26,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:47:26,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557017901] [2020-09-24 23:47:26,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:47:26,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:47:26,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:47:26,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:47:26,079 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2020-09-24 23:47:26,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:47:26,284 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-24 23:47:26,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:47:26,287 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-24 23:47:26,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:47:26,289 INFO L225 Difference]: With dead ends: 44 [2020-09-24 23:47:26,289 INFO L226 Difference]: Without dead ends: 38 [2020-09-24 23:47:26,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:47:26,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-24 23:47:26,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-24 23:47:26,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 23:47:26,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-24 23:47:26,320 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-24 23:47:26,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:47:26,320 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-24 23:47:26,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:47:26,321 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-24 23:47:26,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 23:47:26,324 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:26,326 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:26,326 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:47:26,327 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:26,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:26,327 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-24 23:47:26,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:26,329 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993493466] [2020-09-24 23:47:26,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:26,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:26,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:26,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:26,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:26,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:28,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:28,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 23:47:28,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:47:28,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1689 [2020-09-24 23:47:28,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:28,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:47:28,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:28,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:47:28,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:28,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:28,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:28,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:28,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:28,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:28,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:47:28,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:28,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:28,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:28,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:28,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:28,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:28,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:28,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:28,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:28,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:28,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:28,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:47:28,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:47:28,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-09-24 23:47:28,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:28,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:47:28,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:47:28,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:47:28,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:28,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:28,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:28,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:28,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:28,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:28,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:47:28,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:28,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:28,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:28,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:47:28,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:28,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:47:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:28,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:28,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:28,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:28,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:28,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 23:47:28,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:28,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:28,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:28,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:47:28,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:28,602 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:47:28,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993493466] [2020-09-24 23:47:28,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:47:28,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 23:47:28,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491751624] [2020-09-24 23:47:28,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:47:28,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:47:28,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:47:28,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:47:28,605 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 6 states. [2020-09-24 23:47:28,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:47:28,687 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2020-09-24 23:47:28,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 23:47:28,687 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-09-24 23:47:28,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:47:28,690 INFO L225 Difference]: With dead ends: 52 [2020-09-24 23:47:28,690 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 23:47:28,691 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:47:28,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 23:47:28,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2020-09-24 23:47:28,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-24 23:47:28,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-24 23:47:28,701 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 35 [2020-09-24 23:47:28,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:47:28,701 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-24 23:47:28,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:47:28,702 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-24 23:47:28,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-24 23:47:28,705 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:28,705 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:28,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:47:28,705 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:28,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:28,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1767822624, now seen corresponding path program 2 times [2020-09-24 23:47:28,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:28,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643032767] [2020-09-24 23:47:28,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:28,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:28,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:28,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:28,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:28,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:28,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:29,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:29,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:29,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:33,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:33,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:33,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-09-24 23:47:33,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 23:47:33,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-24 23:47:33,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:33,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:47:33,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:33,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 23:47:33,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:33,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:33,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:33,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:33,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:33,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:33,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:47:33,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:33,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:33,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:33,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:33,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:33,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:33,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:33,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:33,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:33,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:33,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:33,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:34,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:34,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:34,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:38,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:38,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-24 23:47:38,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-24 23:47:38,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-24 23:47:38,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 23:47:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:47:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 23:47:38,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:38,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:38,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:38,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:38,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:38,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:38,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:39,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:39,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:47:39,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:47:39,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-24 23:47:39,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:39,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:39,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:39,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:47:39,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:39,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:39,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:39,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:39,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:39,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:39,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:47:39,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:39,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:39,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:39,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:39,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:39,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:47:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:39,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:39,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:39,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:39,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:39,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:47:39,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:39,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:39,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:39,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:39,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:39,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 23:47:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:39,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:39,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:39,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:39,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:39,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:39,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:40,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 23:47:40,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 23:47:40,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1060 [2020-09-24 23:47:40,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:40,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:47:40,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:47:40,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 23:47:40,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:40,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:40,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:40,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:47:40,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:47:40,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 23:47:40,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:40,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:40,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:40,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:47:40,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:40,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:40,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:40,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:40,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:40,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:47:40,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:40,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:40,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:40,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:40,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:40,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:47:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:40,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:40,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:40,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:40,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:47:40,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:40,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:40,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:40,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:40,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:40,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 23:47:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:40,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:40,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:40,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:40,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:47:40,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:40,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:40,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:40,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:47:40,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:40,550 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 93 proven. 42 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-24 23:47:40,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643032767] [2020-09-24 23:47:40,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:47:40,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 23:47:40,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686293495] [2020-09-24 23:47:40,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 23:47:40,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:47:40,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 23:47:40,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-09-24 23:47:40,554 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 15 states. [2020-09-24 23:47:40,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:47:40,742 INFO L93 Difference]: Finished difference Result 77 states and 105 transitions. [2020-09-24 23:47:40,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 23:47:40,742 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 84 [2020-09-24 23:47:40,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:47:40,744 INFO L225 Difference]: With dead ends: 77 [2020-09-24 23:47:40,744 INFO L226 Difference]: Without dead ends: 47 [2020-09-24 23:47:40,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:47:40,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-24 23:47:40,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2020-09-24 23:47:40,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-24 23:47:40,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2020-09-24 23:47:40,755 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 84 [2020-09-24 23:47:40,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:47:40,755 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2020-09-24 23:47:40,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 23:47:40,756 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2020-09-24 23:47:40,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-24 23:47:40,759 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:40,759 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:40,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 23:47:40,760 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:40,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:40,760 INFO L82 PathProgramCache]: Analyzing trace with hash 501566307, now seen corresponding path program 1 times [2020-09-24 23:47:40,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:40,761 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1353925210] [2020-09-24 23:47:40,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:40,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:40,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:41,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:41,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:43,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:43,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:45,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:45,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-24 23:47:45,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 23:47:45,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 23:47:45,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:45,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:47:45,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:45,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 23:47:45,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:45,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:45,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:45,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:45,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:45,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:45,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:47:45,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:45,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:45,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:45,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:45,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:45,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:45,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:45,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:45,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:45,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:45,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:47,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:49,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:50,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-24 23:47:50,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-24 23:47:50,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 23:47:50,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:50,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-24 23:47:50,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:47:50,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 23:47:50,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:50,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:50,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:51,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 23:47:51,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:47:51,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 444 [2020-09-24 23:47:51,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:51,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-24 23:47:51,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:51,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:47:51,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:51,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:51,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:51,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:51,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:47:51,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 23:47:51,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:51,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:51,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:51,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:47:51,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:51,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:47:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:51,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:51,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:51,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:51,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:47:51,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:51,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:51,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:51,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:47:51,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:51,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 23:47:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:51,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:51,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:53,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:53,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 23:47:53,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 23:47:53,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1614 [2020-09-24 23:47:53,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:53,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:47:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:47:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:47:53,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:53,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:53,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:53,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:53,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:53,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:53,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:53,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 23:47:53,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:47:53,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-24 23:47:53,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:47:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:47:53,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:53,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:53,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:53,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:53,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:53,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:53,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:47:53,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 23:47:53,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:53,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:53,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:53,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:47:53,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:53,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:47:53,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:53,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:53,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:53,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:53,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:53,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:47:53,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:53,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:53,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:53,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:53,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:53,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 23:47:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:53,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:53,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:53,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:53,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:53,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:47:53,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:47:53,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:53,552 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 61 proven. 99 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2020-09-24 23:47:53,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1353925210] [2020-09-24 23:47:53,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:47:53,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 23:47:53,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721247880] [2020-09-24 23:47:53,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 23:47:53,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:47:53,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 23:47:53,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2020-09-24 23:47:53,555 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 15 states. [2020-09-24 23:47:53,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:47:53,850 INFO L93 Difference]: Finished difference Result 93 states and 136 transitions. [2020-09-24 23:47:53,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 23:47:53,851 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 87 [2020-09-24 23:47:53,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:47:53,853 INFO L225 Difference]: With dead ends: 93 [2020-09-24 23:47:53,854 INFO L226 Difference]: Without dead ends: 61 [2020-09-24 23:47:53,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:47:53,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-09-24 23:47:53,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2020-09-24 23:47:53,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-09-24 23:47:53,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 68 transitions. [2020-09-24 23:47:53,865 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 68 transitions. Word has length 87 [2020-09-24 23:47:53,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:47:53,866 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 68 transitions. [2020-09-24 23:47:53,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 23:47:53,866 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2020-09-24 23:47:53,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-24 23:47:53,869 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:53,870 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:53,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 23:47:53,870 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:53,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:53,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1068467993, now seen corresponding path program 2 times [2020-09-24 23:47:53,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:53,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180632276] [2020-09-24 23:47:53,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:53,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:53,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:53,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:53,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:54,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:54,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:54,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:54,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:54,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:55,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:57,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:57,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:58,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:58,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-09-24 23:47:58,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-24 23:47:58,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-24 23:47:58,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:58,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:47:58,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:58,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-24 23:47:58,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:58,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:58,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:58,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:58,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:58,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:58,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:47:58,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:58,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:58,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:58,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:58,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:58,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:58,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:58,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:58,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:59,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:59,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:59,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:59,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:59,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:59,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:59,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:59,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:00,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:03,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:03,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:03,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-24 23:48:03,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-24 23:48:03,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:48:03,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:03,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:48:03,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 23:48:03,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-24 23:48:03,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:03,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:03,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:03,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:03,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:04,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:04,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:48:04,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:48:04,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-24 23:48:04,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:04,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:48:04,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:04,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:48:04,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:04,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:04,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:04,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:04,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:04,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:48:04,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:04,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 23:48:04,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:04,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:04,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:04,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:48:04,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:04,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:48:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:04,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:04,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:04,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:48:04,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:04,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:48:04,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:04,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:48:04,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:04,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:48:04,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:48:04,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 23:48:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:04,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:04,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:04,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:04,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:04,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:04,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:04,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:04,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:05,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:05,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:07,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:07,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:09,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-24 23:48:09,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-24 23:48:09,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:48:09,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:48:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:48:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 23:48:09,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:09,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:09,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:09,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:48:09,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:48:09,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-24 23:48:09,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:09,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:48:09,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:09,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:48:09,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:09,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:48:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:09,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:09,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:48:09,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:48:09,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 23:48:09,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:09,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:48:09,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:09,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:48:09,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:09,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:48:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:09,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:09,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:48:09,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:09,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 23:48:09,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:09,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:48:09,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:09,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:48:09,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:09,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 23:48:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:09,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:09,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:48:09,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:09,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:48:09,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:48:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:09,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:48:09,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:09,539 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 91 proven. 80 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-09-24 23:48:09,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180632276] [2020-09-24 23:48:09,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:48:09,540 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 23:48:09,540 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282399988] [2020-09-24 23:48:09,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 23:48:09,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:48:09,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 23:48:09,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:48:09,542 INFO L87 Difference]: Start difference. First operand 55 states and 68 transitions. Second operand 12 states. [2020-09-24 23:48:09,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:48:09,829 INFO L93 Difference]: Finished difference Result 105 states and 143 transitions. [2020-09-24 23:48:09,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:48:09,830 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-09-24 23:48:09,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:48:09,831 INFO L225 Difference]: With dead ends: 105 [2020-09-24 23:48:09,831 INFO L226 Difference]: Without dead ends: 63 [2020-09-24 23:48:09,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:48:09,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-24 23:48:09,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2020-09-24 23:48:09,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-09-24 23:48:09,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2020-09-24 23:48:09,854 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 89 [2020-09-24 23:48:09,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:48:09,855 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2020-09-24 23:48:09,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 23:48:09,855 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2020-09-24 23:48:09,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-24 23:48:09,857 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:48:09,857 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:48:09,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 23:48:09,864 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:48:09,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:48:09,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1885389560, now seen corresponding path program 2 times [2020-09-24 23:48:09,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:48:09,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311285633] [2020-09-24 23:48:09,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:48:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:09,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:09,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:10,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:12,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:12,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:12,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:14,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:14,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-09-24 23:48:14,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 23:48:14,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:48:14,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:14,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:48:14,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:48:14,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 23:48:14,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:14,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:48:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:14,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:14,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:48:14,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:48:14,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:48:14,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:48:14,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:48:14,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:48:14,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:48:14,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:48:14,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:48:14,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:48:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:48:14,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:14,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:15,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:15,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:15,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:48:15,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking...