/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_2calls_25-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:46:55,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:46:55,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:46:55,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:46:55,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:46:55,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:46:55,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:46:55,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:46:55,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:46:55,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:46:55,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:46:55,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:46:55,716 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:46:55,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:46:55,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:46:55,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:46:55,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:46:55,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:46:55,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:46:55,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:46:55,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:46:55,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:46:55,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:46:55,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:46:55,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:46:55,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:46:55,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:46:55,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:46:55,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:46:55,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:46:55,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:46:55,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:46:55,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:46:55,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:46:55,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:46:55,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:46:55,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:46:55,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:46:55,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:46:55,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:46:55,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:46:55,764 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 23:46:55,791 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:46:55,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:46:55,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:46:55,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:46:55,793 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:46:55,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:46:55,794 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:46:55,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:46:55,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:46:55,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:46:55,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:46:55,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:46:55,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:46:55,795 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:46:55,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:46:55,796 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:46:55,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:46:55,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:46:55,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:46:55,797 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:46:55,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:46:55,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:46:55,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:46:55,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:46:55,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:46:55,798 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:46:55,798 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:46:55,798 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:46:55,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:46:55,799 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 23:46:56,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:46:56,286 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:46:56,290 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:46:56,294 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:46:56,295 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:46:56,296 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_25-2.c [2020-09-24 23:46:56,382 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/529c40e81/330031502c044a37abdec7306fa37f25/FLAG9bd9c5c9a [2020-09-24 23:46:56,897 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:46:56,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_25-2.c [2020-09-24 23:46:56,908 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/529c40e81/330031502c044a37abdec7306fa37f25/FLAG9bd9c5c9a [2020-09-24 23:46:57,220 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/529c40e81/330031502c044a37abdec7306fa37f25 [2020-09-24 23:46:57,234 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:46:57,241 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:46:57,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:46:57,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:46:57,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:46:57,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:46:57" (1/1) ... [2020-09-24 23:46:57,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e64c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:57, skipping insertion in model container [2020-09-24 23:46:57,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:46:57" (1/1) ... [2020-09-24 23:46:57,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:46:57,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:46:57,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:46:57,484 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:46:57,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:46:57,523 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:46:57,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:57 WrapperNode [2020-09-24 23:46:57,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:46:57,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:46:57,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:46:57,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:46:57,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:57" (1/1) ... [2020-09-24 23:46:57,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:57" (1/1) ... [2020-09-24 23:46:57,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:57" (1/1) ... [2020-09-24 23:46:57,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:57" (1/1) ... [2020-09-24 23:46:57,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:57" (1/1) ... [2020-09-24 23:46:57,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:57" (1/1) ... [2020-09-24 23:46:57,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:57" (1/1) ... [2020-09-24 23:46:57,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:46:57,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:46:57,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:46:57,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:46:57,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:57" (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 23:46:57,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:46:57,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:46:57,713 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-24 23:46:57,713 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-24 23:46:57,713 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:46:57,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:46:57,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:46:57,714 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-24 23:46:57,714 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-24 23:46:57,714 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:46:57,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:46:57,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:46:57,990 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:46:57,991 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 23:46:57,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:46:57 BoogieIcfgContainer [2020-09-24 23:46:57,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:46:58,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:46:58,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:46:58,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:46:58,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:46:57" (1/3) ... [2020-09-24 23:46:58,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566da70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:46:58, skipping insertion in model container [2020-09-24 23:46:58,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:46:57" (2/3) ... [2020-09-24 23:46:58,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566da70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:46:58, skipping insertion in model container [2020-09-24 23:46:58,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:46:57" (3/3) ... [2020-09-24 23:46:58,025 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_25-2.c [2020-09-24 23:46:58,042 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:46:58,051 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:46:58,071 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:46:58,102 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:46:58,102 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:46:58,102 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:46:58,102 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:46:58,102 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:46:58,102 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:46:58,102 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:46:58,103 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:46:58,123 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-24 23:46:58,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 23:46:58,131 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:58,132 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:58,133 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:58,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:58,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-24 23:46:58,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:58,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160288658] [2020-09-24 23:46:58,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:58,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:58,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-24 23:46:58,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:58,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 23:46:58,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:58,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:58,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:58,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:46:58,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:46:58,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:58,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:58,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:58,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:58,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:46:58,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:58,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:58,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:58,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:58,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 23:46:58,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:58,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:58,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:46:58,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:58,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 23:46:58,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:58,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:58,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:58,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:58,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:58,475 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 23:46:58,476 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160288658] [2020-09-24 23:46:58,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:46:58,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:46:58,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46039912] [2020-09-24 23:46:58,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:46:58,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:58,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:46:58,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:46:58,501 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-24 23:46:58,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:58,636 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-24 23:46:58,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:46:58,639 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 23:46:58,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:58,653 INFO L225 Difference]: With dead ends: 58 [2020-09-24 23:46:58,653 INFO L226 Difference]: Without dead ends: 42 [2020-09-24 23:46:58,657 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 23:46:58,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-24 23:46:58,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-24 23:46:58,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 23:46:58,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-24 23:46:58,710 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-24 23:46:58,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:58,711 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-24 23:46:58,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:46:58,711 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-24 23:46:58,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 23:46:58,713 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:58,714 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 23:46:58,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:46:58,714 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:58,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:58,715 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-24 23:46:58,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:58,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123591253] [2020-09-24 23:46:58,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:58,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:58,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:58,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-24 23:46:58,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:58,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-24 23:46:58,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:58,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:58,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:58,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:46:58,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:58,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:58,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:58,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:58,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:58,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:46:58,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:58,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:58,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:58,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:58,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:58,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:58,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:58,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:58,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:46:58,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:58,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 23:46:58,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:58,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:46:58,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:46:58,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:46:58,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:46:58,975 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 23:46:58,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123591253] [2020-09-24 23:46:58,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:46:58,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 23:46:58,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506352600] [2020-09-24 23:46:58,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 23:46:58,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:46:58,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 23:46:58,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:46:58,980 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-24 23:46:59,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:46:59,059 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-24 23:46:59,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:46:59,060 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 23:46:59,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:46:59,062 INFO L225 Difference]: With dead ends: 50 [2020-09-24 23:46:59,062 INFO L226 Difference]: Without dead ends: 44 [2020-09-24 23:46:59,064 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 23:46:59,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-24 23:46:59,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-24 23:46:59,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 23:46:59,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-24 23:46:59,074 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-24 23:46:59,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:46:59,075 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-24 23:46:59,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 23:46:59,075 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-24 23:46:59,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 23:46:59,077 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:46:59,078 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:46:59,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:46:59,078 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:46:59,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:46:59,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-24 23:46:59,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:46:59,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1878381644] [2020-09-24 23:46:59,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:46:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:59,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:59,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:59,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:59,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:59,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-24 23:46:59,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:46:59,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 586 [2020-09-24 23:46:59,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:59,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:46:59,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:46:59,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:46:59,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:59,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:46:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:59,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:59,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:46:59,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:46:59,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:46:59,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:46:59,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:46:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:46:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:46:59,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:46:59,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:46:59,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:46:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:46:59,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:59,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:46:59,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:00,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:00,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:47:00,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:47:00,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 338 [2020-09-24 23:47:00,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:00,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:47:00,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:47:00,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:47:00,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:00,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:00,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:00,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:00,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:00,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:00,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:47:00,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:00,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:00,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:00,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:00,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:00,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:47:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:00,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:00,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:00,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:00,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:00,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:47:00,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:00,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:00,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:47:00,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:00,168 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 23:47:00,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1878381644] [2020-09-24 23:47:00,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:47:00,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 23:47:00,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961251970] [2020-09-24 23:47:00,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:47:00,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:47:00,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:47:00,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:47:00,172 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-24 23:47:00,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:47:00,352 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2020-09-24 23:47:00,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 23:47:00,353 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-24 23:47:00,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:47:00,356 INFO L225 Difference]: With dead ends: 69 [2020-09-24 23:47:00,356 INFO L226 Difference]: Without dead ends: 63 [2020-09-24 23:47:00,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:47:00,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-24 23:47:00,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2020-09-24 23:47:00,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-24 23:47:00,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2020-09-24 23:47:00,373 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 33 [2020-09-24 23:47:00,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:47:00,374 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2020-09-24 23:47:00,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:47:00,374 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2020-09-24 23:47:00,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-24 23:47:00,377 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:00,377 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:00,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:47:00,377 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:00,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:00,378 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-24 23:47:00,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:00,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575648288] [2020-09-24 23:47:00,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:00,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:00,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:00,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:00,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:00,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:00,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-24 23:47:00,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:47:00,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 547 [2020-09-24 23:47:00,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:00,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:47:00,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:00,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:47:00,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:00,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:00,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:00,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:00,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:00,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:00,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:00,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:47:00,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:00,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:00,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:00,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:00,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:00,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:00,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:00,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:00,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:01,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:01,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:01,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 23:47:01,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:47:01,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 489 [2020-09-24 23:47:01,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:01,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:47:01,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:47:01,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:47:01,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:01,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:01,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:01,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:01,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:01,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:01,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 23:47:01,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:01,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:01,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:01,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:47:01,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:01,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:47:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:01,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:01,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:01,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:01,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:01,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:47:01,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:01,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:01,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:01,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:47:01,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:01,567 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 23:47:01,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575648288] [2020-09-24 23:47:01,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:47:01,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:47:01,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545614300] [2020-09-24 23:47:01,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:47:01,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:47:01,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:47:01,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:47:01,570 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand 7 states. [2020-09-24 23:47:01,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:47:01,701 INFO L93 Difference]: Finished difference Result 85 states and 110 transitions. [2020-09-24 23:47:01,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:47:01,701 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-24 23:47:01,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:47:01,704 INFO L225 Difference]: With dead ends: 85 [2020-09-24 23:47:01,704 INFO L226 Difference]: Without dead ends: 79 [2020-09-24 23:47:01,705 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:47:01,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-24 23:47:01,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 67. [2020-09-24 23:47:01,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-09-24 23:47:01,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2020-09-24 23:47:01,720 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 35 [2020-09-24 23:47:01,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:47:01,721 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2020-09-24 23:47:01,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:47:01,721 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2020-09-24 23:47:01,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 23:47:01,724 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:01,724 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:01,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:47:01,725 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:01,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:01,725 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-24 23:47:01,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:01,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349045945] [2020-09-24 23:47:01,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:01,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:01,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:01,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:01,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:01,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:01,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:02,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:02,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:06,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:06,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-24 23:47:06,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 23:47:06,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:47:06,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:47:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:47:06,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:06,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:06,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:06,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:06,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:06,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:06,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:47:06,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:06,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:06,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:06,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:06,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:06,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:06,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:06,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:06,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:06,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:07,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:07,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:07,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:10,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:10,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-24 23:47:10,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 23:47:10,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3259 [2020-09-24 23:47:10,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:10,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:47:10,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:47:10,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 23:47:10,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:10,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:10,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:10,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:10,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:10,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:10,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:47:10,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:47:10,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-24 23:47:10,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:10,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:47:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:10,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:47:10,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:10,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:10,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:10,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:10,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:10,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:10,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:47:10,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:10,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:10,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:10,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:47:10,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:10,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:47:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:10,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:10,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:10,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:10,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:10,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:47:10,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:10,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:10,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:10,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:10,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:10,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 23:47:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:10,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:10,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:10,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:10,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:10,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:47:10,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:10,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:10,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:10,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:47:10,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:10,256 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 23:47:10,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349045945] [2020-09-24 23:47:10,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:47:10,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 23:47:10,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653279378] [2020-09-24 23:47:10,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:47:10,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:47:10,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:47:10,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:47:10,260 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand 9 states. [2020-09-24 23:47:10,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:47:10,490 INFO L93 Difference]: Finished difference Result 101 states and 145 transitions. [2020-09-24 23:47:10,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 23:47:10,491 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-09-24 23:47:10,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:47:10,496 INFO L225 Difference]: With dead ends: 101 [2020-09-24 23:47:10,497 INFO L226 Difference]: Without dead ends: 95 [2020-09-24 23:47:10,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:47:10,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-09-24 23:47:10,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 79. [2020-09-24 23:47:10,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-09-24 23:47:10,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 108 transitions. [2020-09-24 23:47:10,539 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 108 transitions. Word has length 51 [2020-09-24 23:47:10,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:47:10,545 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 108 transitions. [2020-09-24 23:47:10,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:47:10,545 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 108 transitions. [2020-09-24 23:47:10,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 23:47:10,554 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:10,554 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:10,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 23:47:10,555 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:10,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:10,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1703786405, now seen corresponding path program 1 times [2020-09-24 23:47:10,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:10,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1722005042] [2020-09-24 23:47:10,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:10,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:10,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:10,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:12,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:12,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-24 23:47:12,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:47:12,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1630 [2020-09-24 23:47:12,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:12,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:47:12,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:12,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 23:47:12,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:12,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:12,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:12,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:12,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:12,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:12,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:47:12,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:12,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:12,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:12,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:12,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:12,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:12,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:12,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:12,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:13,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:13,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-24 23:47:13,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:47:13,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1660 [2020-09-24 23:47:13,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:13,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:47:13,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:47:13,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-24 23:47:13,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:13,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:13,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:13,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:13,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 23:47:13,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:13,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 23:47:13,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:13,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:13,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:13,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:47:13,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:13,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:13,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:13,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:13,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:13,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:13,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:47:13,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:13,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:13,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:13,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:13,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:13,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:47:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:13,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:13,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:13,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:13,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:13,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:47:13,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:13,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:13,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 23:47:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:14,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:14,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:14,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:14,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:14,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-24 23:47:14,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:14,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:14,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:14,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:47:14,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:14,053 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 23:47:14,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1722005042] [2020-09-24 23:47:14,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:47:14,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 23:47:14,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392792840] [2020-09-24 23:47:14,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:47:14,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:47:14,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:47:14,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:47:14,057 INFO L87 Difference]: Start difference. First operand 79 states and 108 transitions. Second operand 7 states. [2020-09-24 23:47:14,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:47:14,194 INFO L93 Difference]: Finished difference Result 103 states and 147 transitions. [2020-09-24 23:47:14,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 23:47:14,195 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2020-09-24 23:47:14,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:47:14,198 INFO L225 Difference]: With dead ends: 103 [2020-09-24 23:47:14,199 INFO L226 Difference]: Without dead ends: 97 [2020-09-24 23:47:14,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:47:14,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-09-24 23:47:14,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 81. [2020-09-24 23:47:14,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-09-24 23:47:14,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 112 transitions. [2020-09-24 23:47:14,231 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 112 transitions. Word has length 52 [2020-09-24 23:47:14,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:47:14,232 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 112 transitions. [2020-09-24 23:47:14,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:47:14,232 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 112 transitions. [2020-09-24 23:47:14,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-09-24 23:47:14,235 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:14,236 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:14,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 23:47:14,236 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:14,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:14,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1454118782, now seen corresponding path program 1 times [2020-09-24 23:47:14,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:14,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417344541] [2020-09-24 23:47:14,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:14,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:14,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:14,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:14,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:15,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:15,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:15,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:15,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:15,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:16,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:16,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:19,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:19,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-24 23:47:19,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 23:47:19,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-24 23:47:19,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:19,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:47:19,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:19,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 23:47:19,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:19,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:19,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:19,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:19,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:19,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:19,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:47:19,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:19,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:19,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:19,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:19,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:19,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:19,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:19,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:19,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:19,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:19,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:19,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:19,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:20,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:20,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:24,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:24,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:24,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:24,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-24 23:47:24,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-24 23:47:24,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:47:24,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:47:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:47:24,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-24 23:47:24,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:24,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:24,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:24,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:24,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 23:47:24,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:24,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 23:47:24,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:24,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:24,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:47:24,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:24,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:24,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:24,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:24,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:24,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:24,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:47:24,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:24,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:24,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:24,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:47:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:24,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:24,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:24,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:24,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:24,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:47:24,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:24,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:24,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:24,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:24,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:24,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 23:47:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:24,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:24,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:24,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:24,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:24,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:47:24,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:47:24,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-24 23:47:24,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:24,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:47:24,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:24,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:47:24,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:24,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:24,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:24,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:24,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:24,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:24,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:47:24,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:24,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:24,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:24,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:47:24,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:24,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:47:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:24,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:24,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:24,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:24,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:24,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:47:24,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:24,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:24,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:24,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:24,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:47:24,625 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 24 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-09-24 23:47:24,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417344541] [2020-09-24 23:47:24,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:47:24,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 23:47:24,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785526588] [2020-09-24 23:47:24,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:47:24,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:47:24,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:47:24,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:47:24,630 INFO L87 Difference]: Start difference. First operand 81 states and 112 transitions. Second operand 9 states. [2020-09-24 23:47:24,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:47:24,870 INFO L93 Difference]: Finished difference Result 200 states and 317 transitions. [2020-09-24 23:47:24,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 23:47:24,870 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-09-24 23:47:24,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:47:24,873 INFO L225 Difference]: With dead ends: 200 [2020-09-24 23:47:24,873 INFO L226 Difference]: Without dead ends: 125 [2020-09-24 23:47:24,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:47:24,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-24 23:47:24,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 105. [2020-09-24 23:47:24,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-24 23:47:24,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 149 transitions. [2020-09-24 23:47:24,895 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 149 transitions. Word has length 68 [2020-09-24 23:47:24,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:47:24,896 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 149 transitions. [2020-09-24 23:47:24,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:47:24,896 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 149 transitions. [2020-09-24 23:47:24,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 23:47:24,899 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:24,899 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:24,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 23:47:24,899 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:24,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:24,900 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 2 times [2020-09-24 23:47:24,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:24,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141888561] [2020-09-24 23:47:24,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:24,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:24,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:24,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:24,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:24,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:25,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:25,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:25,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:26,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:27,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:27,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:28,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:28,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:29,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:29,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:29,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-24 23:47:29,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-24 23:47:29,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 23:47:29,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:29,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:47:29,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:29,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 23:47:29,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:29,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:29,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:29,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:29,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:29,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:29,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:47:29,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:29,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:29,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:29,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:29,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:29,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:29,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:29,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:29,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:30,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:30,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:30,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:30,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:30,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:30,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:33,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:34,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:34,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:34,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:34,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:34,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-24 23:47:34,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-24 23:47:34,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 23:47:34,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:47:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 23:47:34,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 23:47:34,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:34,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:34,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:34,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:35,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 23:47:35,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:47:35,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-09-24 23:47:35,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:47:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:35,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-24 23:47:35,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:35,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:35,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:35,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:35,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:35,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 23:47:35,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:35,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:35,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:35,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:47:35,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:35,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:47:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:35,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:35,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:35,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:35,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:47:35,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:35,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:35,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:35,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:35,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:35,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 23:47:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:35,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:35,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-24 23:47:35,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:35,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 23:47:35,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:35,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:35,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:35,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:47:35,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:35,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:35,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:35,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:47:35,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:35,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:47:35,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:35,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:35,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:35,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:35,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:35,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 23:47:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:35,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:35,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:35,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:35,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:47:35,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:35,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:35,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:35,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:35,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:35,311 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 8 proven. 28 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-09-24 23:47:35,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141888561] [2020-09-24 23:47:35,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 23:47:35,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 23:47:35,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833191916] [2020-09-24 23:47:35,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:47:35,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:47:35,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:47:35,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:47:35,314 INFO L87 Difference]: Start difference. First operand 105 states and 149 transitions. Second operand 9 states. [2020-09-24 23:47:35,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:47:35,501 INFO L93 Difference]: Finished difference Result 171 states and 283 transitions. [2020-09-24 23:47:35,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 23:47:35,502 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-09-24 23:47:35,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:47:35,506 INFO L225 Difference]: With dead ends: 171 [2020-09-24 23:47:35,507 INFO L226 Difference]: Without dead ends: 165 [2020-09-24 23:47:35,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:47:35,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-09-24 23:47:35,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 147. [2020-09-24 23:47:35,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-09-24 23:47:35,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 239 transitions. [2020-09-24 23:47:35,528 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 239 transitions. Word has length 69 [2020-09-24 23:47:35,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:47:35,529 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 239 transitions. [2020-09-24 23:47:35,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:47:35,529 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 239 transitions. [2020-09-24 23:47:35,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-09-24 23:47:35,532 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:47:35,533 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:47:35,533 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 23:47:35,533 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:47:35,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:47:35,533 INFO L82 PathProgramCache]: Analyzing trace with hash 2120760888, now seen corresponding path program 1 times [2020-09-24 23:47:35,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:47:35,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121337273] [2020-09-24 23:47:35,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:47:35,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:35,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:35,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:37,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:37,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:38,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:40,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-24 23:47:40,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-24 23:47:40,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-24 23:47:40,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:40,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:47:40,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:47:40,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 23:47:40,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:40,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:47:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:40,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:40,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:47:40,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:40,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:47:40,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:40,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:47:40,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:40,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:47:40,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:40,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:47:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:40,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:40,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:41,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:41,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:41,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:41,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:44,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:44,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:44,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:44,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:44,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:44,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:44,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:44,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:45,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:45,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-24 23:47:45,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-09-24 23:47:45,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 23:47:45,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:45,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:47:45,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:47:45,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-24 23:47:45,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:45,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:45,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:45,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:45,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:45,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:45,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:45,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:46,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:49,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:49,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-24 23:47:49,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-24 23:47:49,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4179 [2020-09-24 23:47:49,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:47:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-24 23:47:49,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:49,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:49,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:49,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:49,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:49,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 23:47:49,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:47:49,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-24 23:47:49,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:49,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 23:47:49,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:49,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-24 23:47:49,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:49,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:47:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:49,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:49,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:49,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:49,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:49,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:47:49,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:49,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:47:49,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:49,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:47:49,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:50,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 23:47:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:50,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:50,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:50,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:50,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:47:50,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:50,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:50,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:50,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:50,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:50,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 23:47:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:50,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:47:50,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:47:50,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:47:50,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:47:50,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:47:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:47:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:47:50,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:47:50,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:47:50,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-24 23:47:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:47:50,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:47:50,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking...