/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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_20-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:14:38,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:14:38,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:14:38,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:14:38,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:14:38,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:14:38,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:14:38,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:14:38,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:14:38,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:14:38,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:14:38,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:14:38,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:14:38,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:14:38,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:14:38,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:14:38,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:14:38,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:14:38,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:14:38,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:14:38,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:14:38,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:14:38,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:14:38,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:14:38,773 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:14:38,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:14:38,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:14:38,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:14:38,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:14:38,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:14:38,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:14:38,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:14:38,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:14:38,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:14:38,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:14:38,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:14:38,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:14:38,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:14:38,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:14:38,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:14:38,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:14:38,784 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 12:14:38,811 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:14:38,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:14:38,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:14:38,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:14:38,814 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:14:38,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:14:38,814 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:14:38,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:14:38,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:14:38,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:14:38,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:14:38,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:14:38,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:14:38,815 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:14:38,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:14:38,816 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:14:38,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:14:38,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:14:38,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:14:38,817 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:14:38,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:14:38,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:14:38,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:14:38,818 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:14:38,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:14:38,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:14:38,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:14:38,819 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:14:38,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:14:38,819 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:14:39,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:14:39,337 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:14:39,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:14:39,343 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:14:39,344 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:14:39,345 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_20-1.c [2020-09-25 12:14:39,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9eb2640f9/be34e91155064c918e0deee94ec13cf2/FLAG7fe04b075 [2020-09-25 12:14:39,980 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:14:39,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_20-1.c [2020-09-25 12:14:39,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9eb2640f9/be34e91155064c918e0deee94ec13cf2/FLAG7fe04b075 [2020-09-25 12:14:40,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9eb2640f9/be34e91155064c918e0deee94ec13cf2 [2020-09-25 12:14:40,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:14:40,324 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:14:40,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:14:40,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:14:40,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:14:40,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:14:40" (1/1) ... [2020-09-25 12:14:40,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1840d501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:40, skipping insertion in model container [2020-09-25 12:14:40,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:14:40" (1/1) ... [2020-09-25 12:14:40,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:14:40,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:14:40,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:14:40,619 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:14:40,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:14:40,650 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:14:40,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:40 WrapperNode [2020-09-25 12:14:40,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:14:40,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:14:40,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:14:40,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:14:40,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:40" (1/1) ... [2020-09-25 12:14:40,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:40" (1/1) ... [2020-09-25 12:14:40,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:40" (1/1) ... [2020-09-25 12:14:40,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:40" (1/1) ... [2020-09-25 12:14:40,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:40" (1/1) ... [2020-09-25 12:14:40,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:40" (1/1) ... [2020-09-25 12:14:40,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:40" (1/1) ... [2020-09-25 12:14:40,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:14:40,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:14:40,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:14:40,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:14:40,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:14:40,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:14:40,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:14:40,845 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-25 12:14:40,846 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:14:40,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:14:40,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:14:40,846 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-25 12:14:40,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:14:40,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:14:40,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:14:41,061 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:14:41,062 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 12:14:41,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:14:41 BoogieIcfgContainer [2020-09-25 12:14:41,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:14:41,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:14:41,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:14:41,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:14:41,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:14:40" (1/3) ... [2020-09-25 12:14:41,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73234926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:14:41, skipping insertion in model container [2020-09-25 12:14:41,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:14:40" (2/3) ... [2020-09-25 12:14:41,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73234926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:14:41, skipping insertion in model container [2020-09-25 12:14:41,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:14:41" (3/3) ... [2020-09-25 12:14:41,081 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_20-1.c [2020-09-25 12:14:41,093 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:14:41,105 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:14:41,135 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:14:41,176 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:14:41,176 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:14:41,177 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:14:41,177 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:14:41,177 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:14:41,177 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:14:41,178 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:14:41,178 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:14:41,205 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 12:14:41,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 12:14:41,216 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:41,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:41,219 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:41,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:41,228 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-25 12:14:41,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:41,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779835774] [2020-09-25 12:14:41,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:14:41,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:14:41,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-25 12:14:41,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:14:41,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 12:14:41,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:14:41,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 12:14:41,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:41,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:41,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:14:41,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:41,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:41,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:14:41,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:41,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:41,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:41,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:41,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:41,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 12:14:41,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:41,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:41,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:14:41,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:41,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:14:41,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:14:41,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:14:41,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779835774] [2020-09-25 12:14:41,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:14:41,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:14:41,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339209229] [2020-09-25 12:14:41,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:14:41,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:41,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:14:41,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:14:41,866 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 12:14:41,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:41,951 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 12:14:41,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 12:14:41,954 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 12:14:41,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:41,968 INFO L225 Difference]: With dead ends: 44 [2020-09-25 12:14:41,968 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 12:14:41,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:14:41,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 12:14:42,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 12:14:42,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 12:14:42,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 12:14:42,032 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 12:14:42,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:42,032 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 12:14:42,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:14:42,033 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 12:14:42,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 12:14:42,035 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:42,036 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:42,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:14:42,036 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:42,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:42,037 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-25 12:14:42,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:42,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749847575] [2020-09-25 12:14:42,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:42,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:42,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 12:14:42,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:14:42,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-25 12:14:42,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:42,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:42,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:14:42,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:14:42,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:14:42,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:42,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:42,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:42,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:42,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:42,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:14:42,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:42,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:42,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:42,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:42,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:42,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:42,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:42,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:42,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:42,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 12:14:42,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:42,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:42,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:14:42,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:42,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:14:42,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:42,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 12:14:42,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749847575] [2020-09-25 12:14:42,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:14:42,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:14:42,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386814859] [2020-09-25 12:14:42,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:14:42,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:42,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:14:42,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:14:42,284 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 12:14:42,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:42,344 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 12:14:42,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:14:42,345 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 12:14:42,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:42,347 INFO L225 Difference]: With dead ends: 36 [2020-09-25 12:14:42,347 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 12:14:42,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:14:42,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 12:14:42,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 12:14:42,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 12:14:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 12:14:42,357 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 12:14:42,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:42,357 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 12:14:42,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:14:42,358 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 12:14:42,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 12:14:42,360 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:42,360 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:42,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:14:42,361 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:42,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:42,361 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-25 12:14:42,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:42,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2043350584] [2020-09-25 12:14:42,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:42,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:42,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:44,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:44,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 12:14:44,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:14:44,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1919 [2020-09-25 12:14:44,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:44,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:44,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:44,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:14:44,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:14:44,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:44,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:44,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:44,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:44,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:44,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:44,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:44,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:14:44,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:44,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:44,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:44,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:44,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:44,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:14:44,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:44,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:44,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:44,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:44,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:44,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:14:44,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:14:44,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-25 12:14:44,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:44,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:44,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:44,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:44,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:14:44,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:44,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:44,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:44,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:44,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:44,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:44,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:14:44,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:44,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:44,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:14:44,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:44,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:14:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:44,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:44,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:44,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:44,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:44,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:14:44,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:44,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:44,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:14:44,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:44,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:14:44,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:44,616 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 12:14:44,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2043350584] [2020-09-25 12:14:44,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:14:44,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 12:14:44,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019861639] [2020-09-25 12:14:44,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:14:44,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:44,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:14:44,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:14:44,619 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-09-25 12:14:44,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:44,703 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-25 12:14:44,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 12:14:44,704 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-25 12:14:44,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:44,706 INFO L225 Difference]: With dead ends: 44 [2020-09-25 12:14:44,707 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 12:14:44,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:14:44,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 12:14:44,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-25 12:14:44,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 12:14:44,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-25 12:14:44,718 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-25 12:14:44,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:44,718 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-25 12:14:44,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:14:44,719 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-25 12:14:44,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 12:14:44,721 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:44,721 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:44,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:14:44,721 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:44,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:44,722 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-25 12:14:44,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:44,722 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936428719] [2020-09-25 12:14:44,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:44,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:44,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:44,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:45,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:45,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:46,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:46,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 12:14:46,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 12:14:46,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1815 [2020-09-25 12:14:46,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:46,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:46,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:46,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:14:46,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 12:14:46,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:46,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:46,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:46,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:46,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:46,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:46,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:46,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:14:46,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:46,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:46,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:46,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:46,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:46,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:46,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:46,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:46,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:46,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:46,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:47,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:47,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 12:14:47,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 12:14:47,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 457 [2020-09-25 12:14:47,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:47,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:47,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 12:14:47,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:47,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:47,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:47,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:47,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:47,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:47,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:14:47,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:47,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:47,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:14:47,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:47,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:14:47,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:47,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:14:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:47,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:47,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:47,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:47,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:47,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:14:47,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:47,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:47,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:47,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:47,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:14:47,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:47,146 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 12:14:47,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936428719] [2020-09-25 12:14:47,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:14:47,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 12:14:47,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636861496] [2020-09-25 12:14:47,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:14:47,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:47,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:14:47,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:14:47,149 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 7 states. [2020-09-25 12:14:47,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:47,309 INFO L93 Difference]: Finished difference Result 88 states and 137 transitions. [2020-09-25 12:14:47,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:14:47,310 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 12:14:47,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:47,313 INFO L225 Difference]: With dead ends: 88 [2020-09-25 12:14:47,314 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 12:14:47,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:14:47,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 12:14:47,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-25 12:14:47,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 12:14:47,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2020-09-25 12:14:47,330 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 35 [2020-09-25 12:14:47,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:47,331 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2020-09-25 12:14:47,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:14:47,331 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2020-09-25 12:14:47,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 12:14:47,334 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:47,334 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:47,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:14:47,335 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:47,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:47,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1693530075, now seen corresponding path program 1 times [2020-09-25 12:14:47,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:47,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360506809] [2020-09-25 12:14:47,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:47,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:47,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:47,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:47,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:47,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:47,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:47,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:47,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:50,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:52,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 12:14:52,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:14:52,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 12:14:52,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:52,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:52,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:52,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:14:52,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 12:14:52,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:52,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:14:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:52,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:52,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:14:52,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:52,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:14:52,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:52,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:52,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:52,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:52,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:52,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:52,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:14:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:52,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:52,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:53,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:53,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:55,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:55,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 12:14:55,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 12:14:55,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3139 [2020-09-25 12:14:55,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:55,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:55,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:14:55,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:14:55,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 12:14:55,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:55,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:55,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:55,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:55,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:55,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:55,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:55,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:14:55,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:14:55,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 12:14:55,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:55,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:55,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:14:55,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:55,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:14:55,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:55,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:14:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:55,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:55,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:55,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:55,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:55,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:14:55,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:55,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:55,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:55,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:55,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:55,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:14:55,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:14:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:55,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:55,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:55,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:14:55,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:55,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:14:55,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:55,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:14:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:55,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:14:55,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:55,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 12:14:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:55,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:55,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:14:55,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:14:55,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:14:55,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 12:14:55,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:14:55,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:14:55,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:14:55,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:14:55,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:14:55,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:14:55,806 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-25 12:14:55,807 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360506809] [2020-09-25 12:14:55,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:14:55,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 12:14:55,808 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787844466] [2020-09-25 12:14:55,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:14:55,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:14:55,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:14:55,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:14:55,810 INFO L87 Difference]: Start difference. First operand 50 states and 69 transitions. Second operand 7 states. [2020-09-25 12:14:55,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:14:55,923 INFO L93 Difference]: Finished difference Result 76 states and 103 transitions. [2020-09-25 12:14:55,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 12:14:55,927 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 12:14:55,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:14:55,931 INFO L225 Difference]: With dead ends: 76 [2020-09-25 12:14:55,933 INFO L226 Difference]: Without dead ends: 70 [2020-09-25 12:14:55,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:14:55,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-25 12:14:55,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 58. [2020-09-25 12:14:55,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 12:14:55,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 81 transitions. [2020-09-25 12:14:55,959 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 81 transitions. Word has length 51 [2020-09-25 12:14:55,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:14:55,959 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 81 transitions. [2020-09-25 12:14:55,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:14:55,960 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 81 transitions. [2020-09-25 12:14:55,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 12:14:55,968 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:14:55,968 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:14:55,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:14:55,971 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:14:55,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:14:55,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1086233509, now seen corresponding path program 2 times [2020-09-25 12:14:55,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:14:55,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541821147] [2020-09-25 12:14:55,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:14:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:14:55,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:56,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:56,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:56,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:56,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:56,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:58,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:58,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:58,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:58,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:59,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:59,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:59,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:14:59,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:00,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:00,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:00,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:00,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:00,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:00,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 12:15:00,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 12:15:00,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 12:15:00,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:00,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:00,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:15:00,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:15:00,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-25 12:15:00,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:01,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:15:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:01,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:01,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:01,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:15:01,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:01,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:15:01,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:01,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:01,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:01,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:01,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:01,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:01,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:15:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:01,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:01,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:01,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:01,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:01,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:01,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:01,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:01,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:01,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:01,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:02,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:04,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:04,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:06,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:06,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 12:15:06,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 12:15:06,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 12:15:06,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:06,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:06,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:15:06,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:15:06,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 12:15:06,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:06,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:06,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:06,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:06,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:06,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:06,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:15:06,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:15:06,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-25 12:15:06,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:06,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:06,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:15:06,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:06,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:15:06,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:15:06,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:06,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:06,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:06,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:06,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:06,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:06,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:15:06,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:06,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:15:06,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:06,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:15:06,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:06,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:15:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:06,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:06,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:06,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:06,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:06,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:15:06,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:06,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:06,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:06,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:06,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:15:06,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:06,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 12:15:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:06,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:06,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:06,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:06,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:06,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:06,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:07,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:07,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:08,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:08,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 12:15:08,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 12:15:08,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2187 [2020-09-25 12:15:08,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:08,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:08,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:15:08,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:15:08,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 12:15:08,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:08,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:08,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:08,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:08,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:08,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 12:15:08,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:15:08,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 12:15:08,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:08,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:08,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:08,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:08,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:15:08,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:08,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:08,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:08,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:08,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:08,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:08,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:15:08,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:08,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:08,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:08,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:08,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:08,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:08,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 12:15:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:08,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:08,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:08,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:08,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:08,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:15:08,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:08,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:08,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:08,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:08,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:08,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:08,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 12:15:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:08,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:08,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:08,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:08,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:08,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:15:08,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:08,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:08,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:08,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:08,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:15:08,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:08,756 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 54 proven. 69 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-09-25 12:15:08,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541821147] [2020-09-25 12:15:08,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:15:08,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 12:15:08,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525528412] [2020-09-25 12:15:08,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:15:08,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:15:08,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:15:08,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:15:08,759 INFO L87 Difference]: Start difference. First operand 58 states and 81 transitions. Second operand 10 states. [2020-09-25 12:15:09,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:15:09,007 INFO L93 Difference]: Finished difference Result 102 states and 145 transitions. [2020-09-25 12:15:09,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:15:09,010 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 85 [2020-09-25 12:15:09,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:15:09,011 INFO L225 Difference]: With dead ends: 102 [2020-09-25 12:15:09,012 INFO L226 Difference]: Without dead ends: 49 [2020-09-25 12:15:09,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:15:09,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-25 12:15:09,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2020-09-25 12:15:09,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 12:15:09,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2020-09-25 12:15:09,026 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 85 [2020-09-25 12:15:09,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:15:09,027 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2020-09-25 12:15:09,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:15:09,027 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2020-09-25 12:15:09,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 12:15:09,029 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:15:09,030 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:15:09,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:15:09,032 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:15:09,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:15:09,033 INFO L82 PathProgramCache]: Analyzing trace with hash 501566307, now seen corresponding path program 3 times [2020-09-25 12:15:09,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:15:09,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [402849586] [2020-09-25 12:15:09,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:15:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:09,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:09,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:09,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:09,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:09,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:09,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:09,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:09,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:12,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:12,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:14,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:14,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 12:15:14,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 12:15:14,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 12:15:14,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:14,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:14,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:15:14,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 12:15:14,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 12:15:14,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:14,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:15:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:14,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:14,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:14,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:15:14,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:14,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:15:14,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:14,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:14,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:14,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:14,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:14,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:14,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:15:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:14,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:14,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:14,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:14,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:14,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:14,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:14,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:14,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:14,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:14,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:15,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:19,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 12:15:19,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 12:15:19,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 12:15:19,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:19,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:19,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:15:19,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:15:19,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 12:15:19,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:19,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:19,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:19,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 12:15:19,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:15:19,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-09-25 12:15:19,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:19,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:19,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:15:19,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:19,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 12:15:19,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:19,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:19,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:19,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:19,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:19,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:15:19,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:19,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:19,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:19,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:19,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:15:19,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:19,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:15:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:19,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:19,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:19,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:19,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:15:19,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:19,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:19,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:15:19,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:19,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:15:19,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:19,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:15:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:19,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:19,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:21,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:21,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 12:15:21,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 12:15:21,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2452 [2020-09-25 12:15:21,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:21,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:21,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:15:21,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:15:21,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 12:15:21,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:21,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:21,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:21,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:21,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 12:15:21,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:21,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 12:15:21,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:21,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:21,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:21,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:21,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:15:21,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:21,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:21,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:21,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:21,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:21,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:21,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:15:21,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:21,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:21,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:21,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:21,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:21,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:21,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:15:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:21,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:21,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:21,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:21,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:21,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:15:21,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:21,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:21,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:21,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:21,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:21,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:21,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:15:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:21,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:21,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:21,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:21,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:21,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 12:15:21,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:21,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:21,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:21,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:21,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:15:21,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 61 proven. 64 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-09-25 12:15:21,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [402849586] [2020-09-25 12:15:21,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:15:21,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 12:15:21,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345988245] [2020-09-25 12:15:21,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:15:21,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:15:21,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:15:21,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:15:21,931 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 9 states. [2020-09-25 12:15:22,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:15:22,184 INFO L93 Difference]: Finished difference Result 99 states and 129 transitions. [2020-09-25 12:15:22,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:15:22,185 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2020-09-25 12:15:22,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:15:22,188 INFO L225 Difference]: With dead ends: 99 [2020-09-25 12:15:22,188 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 12:15:22,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-09-25 12:15:22,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 12:15:22,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-09-25 12:15:22,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 12:15:22,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2020-09-25 12:15:22,198 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 87 [2020-09-25 12:15:22,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:15:22,198 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2020-09-25 12:15:22,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:15:22,199 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2020-09-25 12:15:22,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-25 12:15:22,200 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:15:22,200 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:15:22,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 12:15:22,201 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:15:22,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:15:22,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1883941443, now seen corresponding path program 4 times [2020-09-25 12:15:22,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:15:22,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [373143698] [2020-09-25 12:15:22,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:15:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:22,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:22,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:22,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:22,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:22,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:22,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:22,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:22,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:23,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:27,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:27,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 12:15:27,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 12:15:27,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 12:15:27,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:27,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:27,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:15:27,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 12:15:27,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 12:15:27,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:27,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:15:27,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:27,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:27,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:27,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:15:27,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:27,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:15:27,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:27,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:27,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:27,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:27,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:27,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:27,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:15:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:27,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:27,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:27,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:27,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:27,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:27,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:29,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:29,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:29,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:29,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:32,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 12:15:32,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 12:15:32,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 12:15:32,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:32,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:32,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:15:32,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 12:15:32,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 12:15:32,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:32,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:32,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:32,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:33,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:33,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 12:15:33,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:15:33,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1629 [2020-09-25 12:15:33,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:33,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:33,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:15:33,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:33,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 12:15:33,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:33,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:33,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:33,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:33,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 12:15:33,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:33,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 12:15:33,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:33,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:33,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:15:33,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:33,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:15:33,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:33,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:15:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:33,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:33,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:33,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:33,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:33,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:15:33,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:33,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:33,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:33,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:33,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:33,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:33,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:15:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:33,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:34,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:34,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:15:34,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:34,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:15:34,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:34,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:34,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:15:34,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:34,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:15:34,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:15:34,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:15:34,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:34,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:34,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:15:34,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 12:15:34,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:15:34,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:15:34,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:15:34,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:15:34,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:15:34,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:15:34,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 12:15:34,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:15:34,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-25 12:15:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:15:34,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:15:34,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking...