/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 SequenceOfStatements --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=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label46.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 21:47:40,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 21:47:40,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 21:47:40,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 21:47:40,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 21:47:40,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 21:47:40,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 21:47:40,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 21:47:40,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 21:47:40,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 21:47:40,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 21:47:40,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 21:47:40,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 21:47:40,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 21:47:40,716 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 21:47:40,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 21:47:40,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 21:47:40,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 21:47:40,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 21:47:40,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 21:47:40,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 21:47:40,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 21:47:40,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 21:47:40,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 21:47:40,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 21:47:40,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 21:47:40,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 21:47:40,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 21:47:40,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 21:47:40,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 21:47:40,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 21:47:40,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 21:47:40,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 21:47:40,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 21:47:40,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 21:47:40,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 21:47:40,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 21:47:40,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 21:47:40,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 21:47:40,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 21:47:40,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 21:47:40,739 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 [2020-10-14 21:47:40,783 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 21:47:40,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 21:47:40,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 21:47:40,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 21:47:40,785 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 21:47:40,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 21:47:40,786 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 21:47:40,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 21:47:40,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 21:47:40,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 21:47:40,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 21:47:40,787 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 21:47:40,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 21:47:40,791 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 21:47:40,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 21:47:40,791 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 21:47:40,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 21:47:40,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 21:47:40,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 21:47:40,792 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 21:47:40,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 21:47:40,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 21:47:40,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 21:47:40,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 21:47:40,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 21:47:40,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 21:47:40,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 21:47:40,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 21:47:40,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 21:47:40,795 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 -> SequenceOfStatements 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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 21:47:41,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 21:47:41,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 21:47:41,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 21:47:41,156 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 21:47:41,156 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 21:47:41,157 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label46.c [2020-10-14 21:47:41,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a3857458/51fbd08a1add4ee3998ab15396c3118f/FLAG3c8842b6d [2020-10-14 21:47:41,822 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 21:47:41,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label46.c [2020-10-14 21:47:41,836 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a3857458/51fbd08a1add4ee3998ab15396c3118f/FLAG3c8842b6d [2020-10-14 21:47:42,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7a3857458/51fbd08a1add4ee3998ab15396c3118f [2020-10-14 21:47:42,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 21:47:42,089 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 21:47:42,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 21:47:42,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 21:47:42,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 21:47:42,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:47:42" (1/1) ... [2020-10-14 21:47:42,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@601fc90f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:42, skipping insertion in model container [2020-10-14 21:47:42,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:47:42" (1/1) ... [2020-10-14 21:47:42,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 21:47:42,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 21:47:42,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:47:42,729 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 21:47:43,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 21:47:43,071 INFO L208 MainTranslator]: Completed translation [2020-10-14 21:47:43,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:43 WrapperNode [2020-10-14 21:47:43,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 21:47:43,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 21:47:43,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 21:47:43,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 21:47:43,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:43" (1/1) ... [2020-10-14 21:47:43,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:43" (1/1) ... [2020-10-14 21:47:43,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:43" (1/1) ... [2020-10-14 21:47:43,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:43" (1/1) ... [2020-10-14 21:47:43,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:43" (1/1) ... [2020-10-14 21:47:43,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:43" (1/1) ... [2020-10-14 21:47:43,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:43" (1/1) ... [2020-10-14 21:47:43,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 21:47:43,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 21:47:43,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 21:47:43,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 21:47:43,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:43" (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 [2020-10-14 21:47:43,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 21:47:43,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 21:47:43,360 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 21:47:43,360 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 21:47:43,360 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 21:47:43,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 21:47:43,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 21:47:43,362 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 21:47:43,363 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 21:47:43,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 21:47:43,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 21:47:44,915 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 21:47:44,915 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 21:47:44,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:47:44 BoogieIcfgContainer [2020-10-14 21:47:44,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 21:47:44,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 21:47:44,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 21:47:44,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 21:47:44,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 09:47:42" (1/3) ... [2020-10-14 21:47:44,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2f6b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:47:44, skipping insertion in model container [2020-10-14 21:47:44,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:47:43" (2/3) ... [2020-10-14 21:47:44,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2f6b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 09:47:44, skipping insertion in model container [2020-10-14 21:47:44,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 09:47:44" (3/3) ... [2020-10-14 21:47:44,931 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label46.c [2020-10-14 21:47:44,941 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 21:47:44,950 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 21:47:44,965 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 21:47:44,992 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 21:47:44,993 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 21:47:44,993 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 21:47:44,993 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 21:47:44,993 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 21:47:44,993 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 21:47:44,994 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 21:47:44,994 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 21:47:45,018 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-14 21:47:45,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-14 21:47:45,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:47:45,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:47:45,029 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:47:45,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:47:45,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1982153494, now seen corresponding path program 1 times [2020-10-14 21:47:45,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:47:45,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763834500] [2020-10-14 21:47:45,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:47:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:47:45,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:45,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:47:45,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 21:47:45,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:47:45,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-10-14 21:47:45,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:47:45,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:47:45,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:47:45,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:47:45,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-14 21:47:45,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 21:47:45,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:47:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:47:45,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:45,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:47:45,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:47:45,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:47:45,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 21:47:45,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:47:45,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:47:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:47:45,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:47:45,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:47:45,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:47:45,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:47:45,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763834500] [2020-10-14 21:47:45,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:47:45,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 21:47:45,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17614724] [2020-10-14 21:47:45,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 21:47:45,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:47:45,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 21:47:45,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 21:47:45,759 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-14 21:47:47,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:47:47,674 INFO L93 Difference]: Finished difference Result 714 states and 1256 transitions. [2020-10-14 21:47:47,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:47:47,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2020-10-14 21:47:47,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:47:47,709 INFO L225 Difference]: With dead ends: 714 [2020-10-14 21:47:47,709 INFO L226 Difference]: Without dead ends: 380 [2020-10-14 21:47:47,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:47:47,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-14 21:47:47,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 376. [2020-10-14 21:47:47,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-14 21:47:47,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 528 transitions. [2020-10-14 21:47:47,809 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 528 transitions. Word has length 45 [2020-10-14 21:47:47,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:47:47,809 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 528 transitions. [2020-10-14 21:47:47,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 21:47:47,810 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 528 transitions. [2020-10-14 21:47:47,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-10-14 21:47:47,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:47:47,817 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:47:47,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 21:47:47,817 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:47:47,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:47:47,818 INFO L82 PathProgramCache]: Analyzing trace with hash 438933117, now seen corresponding path program 1 times [2020-10-14 21:47:47,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:47:47,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1435270699] [2020-10-14 21:47:47,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:47:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:47:47,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:48,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:48,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:49,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:47:49,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-14 21:47:49,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:47:49,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1560 [2020-10-14 21:47:49,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:47:49,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:47:49,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:47:49,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:47:49,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 21:47:49,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:47:49,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:47:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:47:49,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:49,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:47:49,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:47:49,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:47:49,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 21:47:49,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:47:49,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:47:49,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:47:49,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:47:49,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:47:49,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:47:49,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:47:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:47:49,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:49,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:47:49,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 21:47:49,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:47:49,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-14 21:47:49,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:47:49,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:47:49,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:47:49,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:47:49,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 21:47:49,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:47:49,848 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 21:47:49,849 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1435270699] [2020-10-14 21:47:49,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 21:47:49,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 21:47:49,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073732136] [2020-10-14 21:47:49,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:47:49,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:47:49,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:47:49,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:47:49,853 INFO L87 Difference]: Start difference. First operand 376 states and 528 transitions. Second operand 7 states. [2020-10-14 21:47:51,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:47:51,556 INFO L93 Difference]: Finished difference Result 936 states and 1282 transitions. [2020-10-14 21:47:51,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 21:47:51,556 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 128 [2020-10-14 21:47:51,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:47:51,561 INFO L225 Difference]: With dead ends: 936 [2020-10-14 21:47:51,561 INFO L226 Difference]: Without dead ends: 566 [2020-10-14 21:47:51,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:47:51,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2020-10-14 21:47:51,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 560. [2020-10-14 21:47:51,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-14 21:47:51,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 726 transitions. [2020-10-14 21:47:51,596 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 726 transitions. Word has length 128 [2020-10-14 21:47:51,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:47:51,597 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 726 transitions. [2020-10-14 21:47:51,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:47:51,598 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 726 transitions. [2020-10-14 21:47:51,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-14 21:47:51,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:47:51,608 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:47:51,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 21:47:51,609 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:47:51,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:47:51,609 INFO L82 PathProgramCache]: Analyzing trace with hash -2135390783, now seen corresponding path program 1 times [2020-10-14 21:47:51,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:47:51,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794445467] [2020-10-14 21:47:51,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:47:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:47:51,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:51,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:51,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:51,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:53,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:54,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:56,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:47:56,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-14 21:47:56,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:47:56,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4939 [2020-10-14 21:47:56,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:47:56,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:47:56,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 21:47:56,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:47:56,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-10-14 21:47:56,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:47:56,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:47:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:47:56,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:56,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:47:56,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:47:56,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:47:56,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:47:56,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:47:56,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:47:56,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:47:56,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:47:56,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:47:56,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:47:56,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:47:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:47:56,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:56,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:47:56,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 21:47:56,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:47:56,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 21:47:56,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:47:56,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:47:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:47:56,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:47:56,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 21:47:56,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:47:56,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 21:47:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:47:56,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:57,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:47:57,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 21:47:57,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:47:57,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 21:47:57,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:47:57,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:47:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:47:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:47:57,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 21:47:57,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:47:57,435 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 140 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 21:47:57,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1794445467] [2020-10-14 21:47:57,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:47:57,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:47:57,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473942808] [2020-10-14 21:47:57,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:47:57,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:47:57,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:47:57,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:47:57,440 INFO L87 Difference]: Start difference. First operand 560 states and 726 transitions. Second operand 8 states. [2020-10-14 21:47:59,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:47:59,260 INFO L93 Difference]: Finished difference Result 1134 states and 1496 transitions. [2020-10-14 21:47:59,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:47:59,265 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 198 [2020-10-14 21:47:59,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:47:59,274 INFO L225 Difference]: With dead ends: 1134 [2020-10-14 21:47:59,274 INFO L226 Difference]: Without dead ends: 762 [2020-10-14 21:47:59,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-14 21:47:59,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2020-10-14 21:47:59,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 746. [2020-10-14 21:47:59,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2020-10-14 21:47:59,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 945 transitions. [2020-10-14 21:47:59,310 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 945 transitions. Word has length 198 [2020-10-14 21:47:59,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:47:59,311 INFO L479 AbstractCegarLoop]: Abstraction has 746 states and 945 transitions. [2020-10-14 21:47:59,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:47:59,311 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 945 transitions. [2020-10-14 21:47:59,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-14 21:47:59,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:47:59,318 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:47:59,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 21:47:59,318 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:47:59,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:47:59,319 INFO L82 PathProgramCache]: Analyzing trace with hash 301628437, now seen corresponding path program 1 times [2020-10-14 21:47:59,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:47:59,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1439065423] [2020-10-14 21:47:59,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:47:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:47:59,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:59,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:47:59,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:00,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:01,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:03,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:03,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-14 21:48:03,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:48:03,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4198 [2020-10-14 21:48:03,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:03,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:03,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:48:03,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 21:48:03,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 155 [2020-10-14 21:48:03,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:48:03,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:48:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:03,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:03,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:03,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:48:03,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:03,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:48:03,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:03,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:03,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:03,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:03,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:03,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:48:03,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:48:03,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:03,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:03,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:03,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 21:48:03,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:03,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 21:48:03,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:03,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:03,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:48:03,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:03,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 21:48:03,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:48:03,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 21:48:03,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:03,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:03,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:03,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:03,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:48:03,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:48:03,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-10-14 21:48:03,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:03,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:03,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:48:03,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:48:03,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 21:48:03,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:48:04,299 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 137 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 21:48:04,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1439065423] [2020-10-14 21:48:04,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:48:04,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 21:48:04,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101213975] [2020-10-14 21:48:04,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 21:48:04,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:48:04,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 21:48:04,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:48:04,303 INFO L87 Difference]: Start difference. First operand 746 states and 945 transitions. Second operand 6 states. [2020-10-14 21:48:06,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:48:06,039 INFO L93 Difference]: Finished difference Result 1878 states and 2479 transitions. [2020-10-14 21:48:06,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 21:48:06,047 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 224 [2020-10-14 21:48:06,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:48:06,054 INFO L225 Difference]: With dead ends: 1878 [2020-10-14 21:48:06,055 INFO L226 Difference]: Without dead ends: 1134 [2020-10-14 21:48:06,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:48:06,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2020-10-14 21:48:06,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 934. [2020-10-14 21:48:06,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 934 states. [2020-10-14 21:48:06,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1116 transitions. [2020-10-14 21:48:06,110 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1116 transitions. Word has length 224 [2020-10-14 21:48:06,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:48:06,111 INFO L479 AbstractCegarLoop]: Abstraction has 934 states and 1116 transitions. [2020-10-14 21:48:06,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 21:48:06,111 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1116 transitions. [2020-10-14 21:48:06,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-14 21:48:06,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:48:06,117 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:48:06,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 21:48:06,118 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:48:06,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:48:06,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1795554235, now seen corresponding path program 1 times [2020-10-14 21:48:06,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:48:06,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530453411] [2020-10-14 21:48:06,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:48:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:06,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:06,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:06,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:07,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:07,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-14 21:48:07,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:48:07,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1583 [2020-10-14 21:48:07,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:07,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:07,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 21:48:07,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:48:07,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-14 21:48:07,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:48:07,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:48:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:07,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:07,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:07,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:48:07,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:07,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 21:48:07,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:07,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:07,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:48:07,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:07,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:48:07,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:48:07,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:48:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:07,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:07,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:08,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:08,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:48:08,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:48:08,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 21:48:08,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:08,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:08,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:48:08,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:08,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 21:48:08,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:48:08,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:48:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:08,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:08,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:08,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:08,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:48:08,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:48:08,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-14 21:48:08,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:08,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:48:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:08,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:48:08,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:48:08,404 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-14 21:48:08,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530453411] [2020-10-14 21:48:08,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:48:08,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:48:08,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498255338] [2020-10-14 21:48:08,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:48:08,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:48:08,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:48:08,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:48:08,407 INFO L87 Difference]: Start difference. First operand 934 states and 1116 transitions. Second operand 5 states. [2020-10-14 21:48:10,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:48:10,263 INFO L93 Difference]: Finished difference Result 2054 states and 2594 transitions. [2020-10-14 21:48:10,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:48:10,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 264 [2020-10-14 21:48:10,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:48:10,274 INFO L225 Difference]: With dead ends: 2054 [2020-10-14 21:48:10,274 INFO L226 Difference]: Without dead ends: 1308 [2020-10-14 21:48:10,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:48:10,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2020-10-14 21:48:10,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1304. [2020-10-14 21:48:10,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1304 states. [2020-10-14 21:48:10,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1567 transitions. [2020-10-14 21:48:10,319 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1567 transitions. Word has length 264 [2020-10-14 21:48:10,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:48:10,320 INFO L479 AbstractCegarLoop]: Abstraction has 1304 states and 1567 transitions. [2020-10-14 21:48:10,321 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:48:10,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1567 transitions. [2020-10-14 21:48:10,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-10-14 21:48:10,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:48:10,326 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:48:10,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 21:48:10,327 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:48:10,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:48:10,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1689481270, now seen corresponding path program 1 times [2020-10-14 21:48:10,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:48:10,328 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146775451] [2020-10-14 21:48:10,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:48:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:10,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:10,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:10,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:11,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:13,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:14,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:15,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:15,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-14 21:48:15,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 21:48:15,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 21:48:15,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:15,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 21:48:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 21:48:15,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-14 21:48:15,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:15,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:48:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:15,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:15,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:15,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:48:15,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:15,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 21:48:15,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:15,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:15,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:48:15,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:15,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 21:48:15,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:48:15,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:48:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:15,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:15,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:15,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:48:15,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:15,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 21:48:15,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:15,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:15,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:48:15,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:48:15,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 21:48:15,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:48:15,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:48:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:15,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:16,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:16,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 21:48:16,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:16,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 21:48:16,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:16,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:16,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:48:16,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:48:16,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 21:48:16,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:16,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-10-14 21:48:16,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:16,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:16,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:16,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 21:48:16,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:16,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:48:16,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:16,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 21:48:16,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:16,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:48:16,395 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 185 proven. 148 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-14 21:48:16,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1146775451] [2020-10-14 21:48:16,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:48:16,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:48:16,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147437595] [2020-10-14 21:48:16,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:48:16,397 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:48:16,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:48:16,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:48:16,398 INFO L87 Difference]: Start difference. First operand 1304 states and 1567 transitions. Second operand 8 states. [2020-10-14 21:48:18,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:48:18,193 INFO L93 Difference]: Finished difference Result 2252 states and 2771 transitions. [2020-10-14 21:48:18,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:48:18,194 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 311 [2020-10-14 21:48:18,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:48:18,202 INFO L225 Difference]: With dead ends: 2252 [2020-10-14 21:48:18,203 INFO L226 Difference]: Without dead ends: 1320 [2020-10-14 21:48:18,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:48:18,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2020-10-14 21:48:18,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1308. [2020-10-14 21:48:18,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1308 states. [2020-10-14 21:48:18,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1308 states to 1308 states and 1566 transitions. [2020-10-14 21:48:18,246 INFO L78 Accepts]: Start accepts. Automaton has 1308 states and 1566 transitions. Word has length 311 [2020-10-14 21:48:18,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:48:18,247 INFO L479 AbstractCegarLoop]: Abstraction has 1308 states and 1566 transitions. [2020-10-14 21:48:18,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:48:18,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1308 states and 1566 transitions. [2020-10-14 21:48:18,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2020-10-14 21:48:18,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:48:18,255 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:48:18,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 21:48:18,256 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:48:18,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:48:18,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1544557409, now seen corresponding path program 1 times [2020-10-14 21:48:18,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:48:18,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569245099] [2020-10-14 21:48:18,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:48:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:18,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:18,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:18,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:20,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:20,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:22,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:22,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 432 [2020-10-14 21:48:22,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:48:22,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4344 [2020-10-14 21:48:22,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:22,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:22,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:48:22,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-14 21:48:22,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 21:48:22,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:22,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:48:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:22,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:22,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:22,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:48:22,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:22,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:48:22,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:22,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:22,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:22,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:48:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:22,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:22,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:22,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:48:22,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:22,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:48:22,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:22,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:22,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:22,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:22,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:22,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:22,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:48:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:22,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:22,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:22,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:48:22,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:22,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 21:48:22,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:22,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:22,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:48:22,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:22,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:48:22,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:22,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:48:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:22,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:22,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:22,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 21:48:22,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:22,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 21:48:22,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:22,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:22,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:48:22,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:48:22,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 21:48:22,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:22,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-10-14 21:48:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:22,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:23,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:23,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 21:48:23,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:23,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 21:48:23,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:23,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:23,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:23,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 21:48:23,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:23,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:23,128 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 297 proven. 68 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2020-10-14 21:48:23,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569245099] [2020-10-14 21:48:23,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:48:23,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:48:23,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369219616] [2020-10-14 21:48:23,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:48:23,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:48:23,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:48:23,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:48:23,131 INFO L87 Difference]: Start difference. First operand 1308 states and 1566 transitions. Second operand 8 states. [2020-10-14 21:48:25,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:48:25,642 INFO L93 Difference]: Finished difference Result 3568 states and 4591 transitions. [2020-10-14 21:48:25,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 21:48:25,650 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 416 [2020-10-14 21:48:25,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:48:25,666 INFO L225 Difference]: With dead ends: 3568 [2020-10-14 21:48:25,667 INFO L226 Difference]: Without dead ends: 2632 [2020-10-14 21:48:25,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 21:48:25,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2020-10-14 21:48:25,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2438. [2020-10-14 21:48:25,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2438 states. [2020-10-14 21:48:25,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 3059 transitions. [2020-10-14 21:48:25,755 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 3059 transitions. Word has length 416 [2020-10-14 21:48:25,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:48:25,756 INFO L479 AbstractCegarLoop]: Abstraction has 2438 states and 3059 transitions. [2020-10-14 21:48:25,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:48:25,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 3059 transitions. [2020-10-14 21:48:25,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2020-10-14 21:48:25,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:48:25,767 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:48:25,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 21:48:25,768 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:48:25,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:48:25,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1523232802, now seen corresponding path program 1 times [2020-10-14 21:48:25,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:48:25,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [255491459] [2020-10-14 21:48:25,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:48:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:25,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:26,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:26,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:27,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:28,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:30,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:30,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 435 [2020-10-14 21:48:30,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:48:30,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4712 [2020-10-14 21:48:30,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:30,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:30,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:48:30,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 305 [2020-10-14 21:48:30,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 21:48:30,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:30,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:48:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:30,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:30,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:30,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:48:30,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:30,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:48:30,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:30,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:30,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:30,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:30,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:30,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:30,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:48:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:30,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:30,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:30,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:48:30,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:30,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:48:30,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:30,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:30,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:30,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:48:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:30,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:30,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:30,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:48:30,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:30,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:48:30,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:30,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:30,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:30,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:30,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:30,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:30,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:48:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:30,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:30,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:30,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 21:48:30,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:30,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:48:30,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:30,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:30,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:48:30,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:30,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 21:48:30,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:30,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-10-14 21:48:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:30,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:30,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:30,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 21:48:30,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:30,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 21:48:30,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:30,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:30,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:48:30,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:48:30,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 21:48:30,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:30,983 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 391 proven. 2 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-14 21:48:30,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [255491459] [2020-10-14 21:48:30,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:48:30,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:48:30,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563670459] [2020-10-14 21:48:30,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:48:30,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:48:30,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:48:30,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:48:30,986 INFO L87 Difference]: Start difference. First operand 2438 states and 3059 transitions. Second operand 7 states. [2020-10-14 21:48:32,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:48:32,801 INFO L93 Difference]: Finished difference Result 4720 states and 6005 transitions. [2020-10-14 21:48:32,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:48:32,804 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 419 [2020-10-14 21:48:32,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:48:32,815 INFO L225 Difference]: With dead ends: 4720 [2020-10-14 21:48:32,816 INFO L226 Difference]: Without dead ends: 2264 [2020-10-14 21:48:32,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:48:32,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2020-10-14 21:48:32,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 2238. [2020-10-14 21:48:32,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2238 states. [2020-10-14 21:48:32,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2238 states to 2238 states and 2463 transitions. [2020-10-14 21:48:32,885 INFO L78 Accepts]: Start accepts. Automaton has 2238 states and 2463 transitions. Word has length 419 [2020-10-14 21:48:32,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:48:32,886 INFO L479 AbstractCegarLoop]: Abstraction has 2238 states and 2463 transitions. [2020-10-14 21:48:32,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:48:32,886 INFO L276 IsEmpty]: Start isEmpty. Operand 2238 states and 2463 transitions. [2020-10-14 21:48:32,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2020-10-14 21:48:32,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:48:32,892 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:48:32,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 21:48:32,892 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:48:32,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:48:32,893 INFO L82 PathProgramCache]: Analyzing trace with hash 103798966, now seen corresponding path program 1 times [2020-10-14 21:48:32,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:48:32,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347888763] [2020-10-14 21:48:32,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:48:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:33,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:33,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:34,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:35,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:38,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:38,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 569 [2020-10-14 21:48:38,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:48:38,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 21:48:38,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:38,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:38,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:48:38,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-14 21:48:38,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-14 21:48:38,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:38,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:48:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:38,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:38,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:38,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:48:38,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:38,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:48:38,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:38,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:38,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:38,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:38,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:38,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:38,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:48:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:38,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:38,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:38,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:48:38,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:38,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:48:38,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:38,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:38,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:38,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:38,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:38,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:38,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:48:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:38,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:38,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:38,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:48:38,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:38,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:48:38,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:38,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:38,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:38,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:38,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:38,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:38,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:48:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:38,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:38,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:38,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:48:38,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:38,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 21:48:38,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:38,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:38,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:48:38,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:38,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 21:48:38,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:38,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-14 21:48:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:38,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:38,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:38,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:48:38,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:38,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 21:48:38,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:38,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:48:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:48:38,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:48:38,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:38,640 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 482 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-10-14 21:48:38,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347888763] [2020-10-14 21:48:38,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:48:38,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:48:38,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609266296] [2020-10-14 21:48:38,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:48:38,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:48:38,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:48:38,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:48:38,642 INFO L87 Difference]: Start difference. First operand 2238 states and 2463 transitions. Second operand 7 states. [2020-10-14 21:48:40,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:48:40,034 INFO L93 Difference]: Finished difference Result 4676 states and 5279 transitions. [2020-10-14 21:48:40,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:48:40,035 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 553 [2020-10-14 21:48:40,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:48:40,049 INFO L225 Difference]: With dead ends: 4676 [2020-10-14 21:48:40,049 INFO L226 Difference]: Without dead ends: 2810 [2020-10-14 21:48:40,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:48:40,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2020-10-14 21:48:40,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 2608. [2020-10-14 21:48:40,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2608 states. [2020-10-14 21:48:40,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2608 states to 2608 states and 2867 transitions. [2020-10-14 21:48:40,117 INFO L78 Accepts]: Start accepts. Automaton has 2608 states and 2867 transitions. Word has length 553 [2020-10-14 21:48:40,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:48:40,118 INFO L479 AbstractCegarLoop]: Abstraction has 2608 states and 2867 transitions. [2020-10-14 21:48:40,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:48:40,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2608 states and 2867 transitions. [2020-10-14 21:48:40,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2020-10-14 21:48:40,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:48:40,125 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:48:40,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 21:48:40,126 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:48:40,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:48:40,126 INFO L82 PathProgramCache]: Analyzing trace with hash -133677887, now seen corresponding path program 1 times [2020-10-14 21:48:40,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:48:40,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864269057] [2020-10-14 21:48:40,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:48:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:40,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:40,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:41,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:41,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:44,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:44,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 576 [2020-10-14 21:48:44,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:48:44,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4610 [2020-10-14 21:48:44,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:44,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:44,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:48:44,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-14 21:48:44,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 21:48:44,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:44,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:48:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:44,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:44,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:44,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:48:44,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:44,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:48:44,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:44,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:44,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:44,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:44,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:44,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:44,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:48:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:44,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:44,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:44,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:48:44,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:44,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:48:44,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:44,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:44,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:44,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:44,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:44,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:44,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:48:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:45,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:45,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:45,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:48:45,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:45,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 21:48:45,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:45,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:45,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:48:45,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:45,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:48:45,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:48:45,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:48:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:45,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:45,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:45,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:48:45,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:45,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 21:48:45,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:45,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:45,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:48:45,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:48:45,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 21:48:45,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:45,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:48:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:45,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:45,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:45,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:48:45,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:45,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-14 21:48:45,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:45,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:45,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:48:45,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:48:45,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:48:45,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:45,683 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 585 proven. 6 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2020-10-14 21:48:45,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864269057] [2020-10-14 21:48:45,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:48:45,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:48:45,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065551344] [2020-10-14 21:48:45,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:48:45,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:48:45,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:48:45,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:48:45,685 INFO L87 Difference]: Start difference. First operand 2608 states and 2867 transitions. Second operand 7 states. [2020-10-14 21:48:46,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:48:46,928 INFO L93 Difference]: Finished difference Result 5974 states and 6731 transitions. [2020-10-14 21:48:46,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:48:46,929 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 560 [2020-10-14 21:48:46,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:48:46,948 INFO L225 Difference]: With dead ends: 5974 [2020-10-14 21:48:46,949 INFO L226 Difference]: Without dead ends: 3738 [2020-10-14 21:48:46,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:48:46,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3738 states. [2020-10-14 21:48:47,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3738 to 3722. [2020-10-14 21:48:47,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3722 states. [2020-10-14 21:48:47,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3722 states to 3722 states and 4116 transitions. [2020-10-14 21:48:47,058 INFO L78 Accepts]: Start accepts. Automaton has 3722 states and 4116 transitions. Word has length 560 [2020-10-14 21:48:47,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:48:47,060 INFO L479 AbstractCegarLoop]: Abstraction has 3722 states and 4116 transitions. [2020-10-14 21:48:47,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:48:47,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3722 states and 4116 transitions. [2020-10-14 21:48:47,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2020-10-14 21:48:47,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:48:47,073 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:48:47,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 21:48:47,074 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:48:47,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:48:47,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1898313121, now seen corresponding path program 1 times [2020-10-14 21:48:47,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:48:47,075 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235001982] [2020-10-14 21:48:47,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:48:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:47,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:47,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:50,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:50,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:52,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:52,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 592 [2020-10-14 21:48:52,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:48:52,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 21:48:52,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:52,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:52,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:48:52,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 366 [2020-10-14 21:48:52,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-14 21:48:52,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:52,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:48:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:52,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:52,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:52,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:48:52,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:52,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:48:52,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:52,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:52,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:52,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:52,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:52,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:52,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:48:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:52,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:52,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:52,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:48:52,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:52,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:48:52,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:52,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:52,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:52,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:52,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:52,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:52,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:48:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:52,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:52,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:52,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:48:52,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:52,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:48:52,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:52,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:52,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:52,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:52,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:52,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:52,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:48:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:52,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:52,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:52,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-14 21:48:52,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:52,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 21:48:52,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:52,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:52,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:48:52,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:52,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 21:48:52,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:52,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2020-10-14 21:48:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:52,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:52,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:52,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:48:52,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:52,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-14 21:48:52,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:52,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:52,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:48:52,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:48:52,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:48:52,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:52,932 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 505 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-10-14 21:48:52,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1235001982] [2020-10-14 21:48:52,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:48:52,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:48:52,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955192060] [2020-10-14 21:48:52,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:48:52,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:48:52,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:48:52,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:48:52,935 INFO L87 Difference]: Start difference. First operand 3722 states and 4116 transitions. Second operand 7 states. [2020-10-14 21:48:54,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:48:54,445 INFO L93 Difference]: Finished difference Result 8000 states and 8916 transitions. [2020-10-14 21:48:54,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:48:54,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 576 [2020-10-14 21:48:54,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:48:54,467 INFO L225 Difference]: With dead ends: 8000 [2020-10-14 21:48:54,467 INFO L226 Difference]: Without dead ends: 4466 [2020-10-14 21:48:54,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:48:54,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4466 states. [2020-10-14 21:48:54,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4466 to 4096. [2020-10-14 21:48:54,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4096 states. [2020-10-14 21:48:54,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4096 states to 4096 states and 4539 transitions. [2020-10-14 21:48:54,563 INFO L78 Accepts]: Start accepts. Automaton has 4096 states and 4539 transitions. Word has length 576 [2020-10-14 21:48:54,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:48:54,564 INFO L479 AbstractCegarLoop]: Abstraction has 4096 states and 4539 transitions. [2020-10-14 21:48:54,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:48:54,564 INFO L276 IsEmpty]: Start isEmpty. Operand 4096 states and 4539 transitions. [2020-10-14 21:48:54,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2020-10-14 21:48:54,572 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:48:54,573 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:48:54,573 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 21:48:54,573 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:48:54,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:48:54,574 INFO L82 PathProgramCache]: Analyzing trace with hash 2146075145, now seen corresponding path program 1 times [2020-10-14 21:48:54,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:48:54,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309106228] [2020-10-14 21:48:54,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:48:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:54,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:54,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:55,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:59,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:59,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:59,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:59,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 636 [2020-10-14 21:48:59,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:48:59,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 21:48:59,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:59,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:59,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:48:59,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 410 [2020-10-14 21:48:59,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-14 21:48:59,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:59,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:48:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:59,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:59,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:59,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:48:59,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:59,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:48:59,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:59,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:59,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:59,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:59,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:59,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:59,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:48:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:59,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:59,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:59,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:48:59,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:59,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:48:59,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:59,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:59,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:59,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:59,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:59,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:59,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:48:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:59,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:48:59,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:48:59,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:48:59,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:48:59,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:48:59,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:48:59,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:48:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:48:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:48:59,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:48:59,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:48:59,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:48:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:48:59,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:00,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:00,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:49:00,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:00,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 21:49:00,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:00,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:00,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:00,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:00,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-14 21:49:00,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:00,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-14 21:49:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:00,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:00,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:00,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:49:00,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:00,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-14 21:49:00,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:00,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:00,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:00,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:00,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:49:00,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:00,559 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 549 proven. 2 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-10-14 21:49:00,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309106228] [2020-10-14 21:49:00,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:49:00,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:49:00,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599609048] [2020-10-14 21:49:00,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:49:00,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:00,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:49:00,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:49:00,623 INFO L87 Difference]: Start difference. First operand 4096 states and 4539 transitions. Second operand 7 states. [2020-10-14 21:49:01,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:49:01,947 INFO L93 Difference]: Finished difference Result 8752 states and 9877 transitions. [2020-10-14 21:49:01,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:49:01,953 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 620 [2020-10-14 21:49:01,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:49:01,978 INFO L225 Difference]: With dead ends: 8752 [2020-10-14 21:49:01,978 INFO L226 Difference]: Without dead ends: 5028 [2020-10-14 21:49:01,988 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:49:01,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5028 states. [2020-10-14 21:49:02,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5028 to 4838. [2020-10-14 21:49:02,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4838 states. [2020-10-14 21:49:02,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4838 states to 4838 states and 5470 transitions. [2020-10-14 21:49:02,095 INFO L78 Accepts]: Start accepts. Automaton has 4838 states and 5470 transitions. Word has length 620 [2020-10-14 21:49:02,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:49:02,096 INFO L479 AbstractCegarLoop]: Abstraction has 4838 states and 5470 transitions. [2020-10-14 21:49:02,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:49:02,096 INFO L276 IsEmpty]: Start isEmpty. Operand 4838 states and 5470 transitions. [2020-10-14 21:49:02,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2020-10-14 21:49:02,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:49:02,106 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:49:02,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 21:49:02,106 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:49:02,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:49:02,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1849958623, now seen corresponding path program 1 times [2020-10-14 21:49:02,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:49:02,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119066492] [2020-10-14 21:49:02,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:49:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:02,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:02,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:03,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:07,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:07,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 714 [2020-10-14 21:49:07,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:49:07,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4850 [2020-10-14 21:49:07,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:07,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:07,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:07,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 231 [2020-10-14 21:49:07,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:49:07,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:07,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:07,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:07,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:07,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:07,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:07,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:49:07,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:07,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:07,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:07,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:07,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:07,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:07,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:07,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:07,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:07,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:49:07,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:07,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:49:07,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:07,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:07,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:07,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:07,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:07,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:07,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:49:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:07,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:07,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:07,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:49:07,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:07,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 21:49:07,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:07,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:07,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:07,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:07,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 21:49:07,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:07,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:49:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:07,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:07,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:07,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:49:07,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:07,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 21:49:07,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:07,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:07,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:07,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:07,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-14 21:49:07,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:07,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-10-14 21:49:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:07,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:07,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:07,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:49:07,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:07,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:49:07,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:07,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:07,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:07,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 21:49:07,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:07,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:07,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2020-10-14 21:49:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:07,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:07,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:07,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:49:07,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:07,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 21:49:07,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:07,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:07,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:07,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-14 21:49:07,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:07,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:07,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1218 backedges. 424 proven. 249 refuted. 0 times theorem prover too weak. 545 trivial. 0 not checked. [2020-10-14 21:49:07,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119066492] [2020-10-14 21:49:07,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:49:07,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:49:07,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530832576] [2020-10-14 21:49:07,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:49:07,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:07,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:49:07,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:49:07,936 INFO L87 Difference]: Start difference. First operand 4838 states and 5470 transitions. Second operand 7 states. [2020-10-14 21:49:09,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:49:09,189 INFO L93 Difference]: Finished difference Result 9674 states and 11041 transitions. [2020-10-14 21:49:09,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 21:49:09,190 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 696 [2020-10-14 21:49:09,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:49:09,213 INFO L225 Difference]: With dead ends: 9674 [2020-10-14 21:49:09,213 INFO L226 Difference]: Without dead ends: 5208 [2020-10-14 21:49:09,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-14 21:49:09,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5208 states. [2020-10-14 21:49:09,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5208 to 5204. [2020-10-14 21:49:09,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5204 states. [2020-10-14 21:49:09,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 5204 states and 5886 transitions. [2020-10-14 21:49:09,333 INFO L78 Accepts]: Start accepts. Automaton has 5204 states and 5886 transitions. Word has length 696 [2020-10-14 21:49:09,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:49:09,334 INFO L479 AbstractCegarLoop]: Abstraction has 5204 states and 5886 transitions. [2020-10-14 21:49:09,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:49:09,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5204 states and 5886 transitions. [2020-10-14 21:49:09,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 720 [2020-10-14 21:49:09,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:49:09,346 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:49:09,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 21:49:09,346 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:49:09,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:49:09,347 INFO L82 PathProgramCache]: Analyzing trace with hash 757002094, now seen corresponding path program 1 times [2020-10-14 21:49:09,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:49:09,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416267618] [2020-10-14 21:49:09,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:49:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:09,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:09,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:10,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:12,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:12,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 737 [2020-10-14 21:49:12,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:49:12,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3284 [2020-10-14 21:49:12,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:12,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:12,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:12,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-14 21:49:12,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-14 21:49:12,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:12,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:12,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:12,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:12,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:12,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:12,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:49:12,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:12,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:12,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:12,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:12,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:12,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:12,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:12,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:12,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:12,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:49:12,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:12,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:49:12,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:12,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:12,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:12,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:12,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:12,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:12,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:49:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:12,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:12,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:12,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:49:12,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:12,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:49:12,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:12,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:12,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:12,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:12,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:12,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:12,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:49:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:12,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:12,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:12,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:49:12,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:12,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:49:12,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:12,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:12,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:12,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:12,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:12,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:12,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:49:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:12,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:13,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:13,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-14 21:49:13,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:13,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 21:49:13,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:13,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:13,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:13,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:13,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 21:49:13,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:13,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 21:49:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:13,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:13,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:13,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:49:13,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:13,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 21:49:13,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:13,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:13,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:13,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:13,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:49:13,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:13,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1349 backedges. 688 proven. 2 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2020-10-14 21:49:13,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416267618] [2020-10-14 21:49:13,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:49:13,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:49:13,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634565001] [2020-10-14 21:49:13,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:49:13,502 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:13,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:49:13,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:49:13,502 INFO L87 Difference]: Start difference. First operand 5204 states and 5886 transitions. Second operand 7 states. [2020-10-14 21:49:14,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:49:14,982 INFO L93 Difference]: Finished difference Result 10410 states and 11803 transitions. [2020-10-14 21:49:14,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:49:14,983 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 719 [2020-10-14 21:49:14,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:49:15,009 INFO L225 Difference]: With dead ends: 10410 [2020-10-14 21:49:15,010 INFO L226 Difference]: Without dead ends: 5578 [2020-10-14 21:49:15,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:49:15,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5578 states. [2020-10-14 21:49:15,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5578 to 5388. [2020-10-14 21:49:15,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5388 states. [2020-10-14 21:49:15,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5388 states to 5388 states and 6086 transitions. [2020-10-14 21:49:15,135 INFO L78 Accepts]: Start accepts. Automaton has 5388 states and 6086 transitions. Word has length 719 [2020-10-14 21:49:15,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:49:15,136 INFO L479 AbstractCegarLoop]: Abstraction has 5388 states and 6086 transitions. [2020-10-14 21:49:15,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:49:15,136 INFO L276 IsEmpty]: Start isEmpty. Operand 5388 states and 6086 transitions. [2020-10-14 21:49:15,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 814 [2020-10-14 21:49:15,148 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:49:15,149 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:49:15,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 21:49:15,150 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:49:15,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:49:15,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1476116286, now seen corresponding path program 1 times [2020-10-14 21:49:15,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:49:15,151 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704382525] [2020-10-14 21:49:15,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:49:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:15,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:15,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:15,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:20,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:20,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 833 [2020-10-14 21:49:20,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:49:20,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 21:49:20,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:20,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:20,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:20,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-14 21:49:20,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:49:20,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:20,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:20,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:20,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:20,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:20,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:20,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:49:20,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:20,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:20,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:20,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:20,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:20,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:20,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:20,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:49:20,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:20,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:49:20,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:20,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:20,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:20,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:49:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:20,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:20,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:20,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:49:20,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:20,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:49:20,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:20,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:20,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:20,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:49:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:20,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:20,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:20,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:49:20,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:20,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 21:49:20,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:20,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:20,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 21:49:20,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:20,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:49:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:20,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:20,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:20,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:49:20,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:20,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 21:49:20,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:20,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:20,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:20,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:20,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-14 21:49:20,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:20,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-14 21:49:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:20,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:20,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:20,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:49:20,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:20,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:49:20,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:20,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:20,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:20,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 21:49:20,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:20,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:20,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-14 21:49:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:20,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:20,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:20,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:49:20,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:20,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 21:49:20,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:20,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:20,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:20,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-14 21:49:20,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:20,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:21,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1785 backedges. 589 proven. 249 refuted. 0 times theorem prover too weak. 947 trivial. 0 not checked. [2020-10-14 21:49:21,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704382525] [2020-10-14 21:49:21,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:49:21,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:49:21,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326595346] [2020-10-14 21:49:21,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:49:21,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:21,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:49:21,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:49:21,387 INFO L87 Difference]: Start difference. First operand 5388 states and 6086 transitions. Second operand 7 states. [2020-10-14 21:49:22,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:49:22,840 INFO L93 Difference]: Finished difference Result 10414 states and 11813 transitions. [2020-10-14 21:49:22,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 21:49:22,841 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 813 [2020-10-14 21:49:22,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:49:22,858 INFO L225 Difference]: With dead ends: 10414 [2020-10-14 21:49:22,858 INFO L226 Difference]: Without dead ends: 5398 [2020-10-14 21:49:22,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:49:22,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5398 states. [2020-10-14 21:49:22,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5398 to 5394. [2020-10-14 21:49:22,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5394 states. [2020-10-14 21:49:22,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5394 states to 5394 states and 5961 transitions. [2020-10-14 21:49:22,954 INFO L78 Accepts]: Start accepts. Automaton has 5394 states and 5961 transitions. Word has length 813 [2020-10-14 21:49:22,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:49:22,955 INFO L479 AbstractCegarLoop]: Abstraction has 5394 states and 5961 transitions. [2020-10-14 21:49:22,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:49:22,955 INFO L276 IsEmpty]: Start isEmpty. Operand 5394 states and 5961 transitions. [2020-10-14 21:49:22,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 895 [2020-10-14 21:49:22,967 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:49:22,968 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:49:22,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 21:49:22,969 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:49:22,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:49:22,969 INFO L82 PathProgramCache]: Analyzing trace with hash -381744583, now seen corresponding path program 1 times [2020-10-14 21:49:22,969 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:49:22,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2033662229] [2020-10-14 21:49:22,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:49:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:23,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:24,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:24,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 916 [2020-10-14 21:49:24,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:24,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 925 [2020-10-14 21:49:24,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:24,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:24,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:24,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-14 21:49:24,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 21:49:24,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:49:24,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:24,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:24,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:24,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:24,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:24,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:24,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:49:24,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:24,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:24,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:24,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:24,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:24,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:24,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:24,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:24,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:49:24,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:24,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:49:24,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:24,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:24,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:24,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:24,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:24,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:24,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:49:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:24,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:24,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:24,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:49:24,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:24,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:49:24,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:24,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:24,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:24,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:24,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:24,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:24,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:49:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:24,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:24,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:24,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:49:24,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:24,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:49:24,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:24,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:24,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:24,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:49:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:24,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:24,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:24,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:49:24,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:24,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:49:24,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:24,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:24,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:24,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:24,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:24,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:24,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:49:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:24,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:24,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:24,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:49:24,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:24,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:49:24,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:24,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:24,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:24,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:24,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:24,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:24,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:49:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:24,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:24,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:24,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:49:24,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:24,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 21:49:24,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:24,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:24,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:24,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:49:24,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:24,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:24,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:24,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:49:24,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:24,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 21:49:24,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:24,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:24,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:24,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:24,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-14 21:49:24,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:24,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2304 backedges. 277 proven. 7 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2020-10-14 21:49:24,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2033662229] [2020-10-14 21:49:24,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:49:24,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:49:24,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517087853] [2020-10-14 21:49:24,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:49:24,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:24,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:49:24,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:49:24,963 INFO L87 Difference]: Start difference. First operand 5394 states and 5961 transitions. Second operand 5 states. [2020-10-14 21:49:26,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:49:26,087 INFO L93 Difference]: Finished difference Result 11882 states and 13359 transitions. [2020-10-14 21:49:26,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:49:26,088 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 894 [2020-10-14 21:49:26,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:49:26,111 INFO L225 Difference]: With dead ends: 11882 [2020-10-14 21:49:26,111 INFO L226 Difference]: Without dead ends: 6860 [2020-10-14 21:49:26,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:49:26,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6860 states. [2020-10-14 21:49:26,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6860 to 6858. [2020-10-14 21:49:26,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6858 states. [2020-10-14 21:49:26,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6858 states to 6858 states and 7688 transitions. [2020-10-14 21:49:26,256 INFO L78 Accepts]: Start accepts. Automaton has 6858 states and 7688 transitions. Word has length 894 [2020-10-14 21:49:26,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:49:26,257 INFO L479 AbstractCegarLoop]: Abstraction has 6858 states and 7688 transitions. [2020-10-14 21:49:26,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:49:26,257 INFO L276 IsEmpty]: Start isEmpty. Operand 6858 states and 7688 transitions. [2020-10-14 21:49:26,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 989 [2020-10-14 21:49:26,274 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:49:26,276 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:49:26,276 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 21:49:26,276 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:49:26,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:49:26,277 INFO L82 PathProgramCache]: Analyzing trace with hash 533962725, now seen corresponding path program 1 times [2020-10-14 21:49:26,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:49:26,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484084788] [2020-10-14 21:49:26,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:49:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:26,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:26,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:27,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:30,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:31,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:31,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1012 [2020-10-14 21:49:31,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:49:31,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 21:49:31,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:31,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:31,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 21:49:31,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-14 21:49:31,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 278 [2020-10-14 21:49:31,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:31,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:31,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:31,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:31,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:31,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:31,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:49:31,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:31,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:31,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:31,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:31,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:31,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:31,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:31,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:31,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:31,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:31,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:49:31,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:31,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:49:31,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:31,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:31,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:31,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:31,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:49:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:31,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:31,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:31,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:49:31,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:31,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:49:31,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:31,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:31,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:31,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:31,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:31,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:31,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:49:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:31,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:31,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:31,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:49:31,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:31,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:49:31,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:31,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:31,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:31,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:31,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:31,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:31,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:49:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:31,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:31,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:31,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:49:31,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:31,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:49:31,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:31,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:31,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:31,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:49:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:31,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:31,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:31,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:49:31,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:31,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:49:31,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:31,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:31,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:31,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:31,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:31,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:31,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:49:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:31,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:31,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:31,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:49:31,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:31,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:49:31,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:31,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:31,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:31,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:31,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 21:49:31,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:49:31,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:49:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:31,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:32,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:32,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:49:32,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:32,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-14 21:49:32,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:32,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:32,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:49:32,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:32,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:49:32,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:32,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:49:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:32,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:32,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:32,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:49:32,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:32,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 21:49:32,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:32,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:32,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:32,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:32,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 21:49:32,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:32,792 INFO L134 CoverageAnalysis]: Checked inductivity of 2969 backedges. 1510 proven. 93 refuted. 0 times theorem prover too weak. 1366 trivial. 0 not checked. [2020-10-14 21:49:32,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484084788] [2020-10-14 21:49:32,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:49:32,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 21:49:32,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153448829] [2020-10-14 21:49:32,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 21:49:32,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:32,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 21:49:32,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:49:32,795 INFO L87 Difference]: Start difference. First operand 6858 states and 7688 transitions. Second operand 10 states. [2020-10-14 21:49:35,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:49:35,209 INFO L93 Difference]: Finished difference Result 15386 states and 17467 transitions. [2020-10-14 21:49:35,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 21:49:35,210 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 988 [2020-10-14 21:49:35,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:49:35,245 INFO L225 Difference]: With dead ends: 15386 [2020-10-14 21:49:35,246 INFO L226 Difference]: Without dead ends: 8900 [2020-10-14 21:49:35,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2020-10-14 21:49:35,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8900 states. [2020-10-14 21:49:35,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8900 to 8528. [2020-10-14 21:49:35,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8528 states. [2020-10-14 21:49:35,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 9713 transitions. [2020-10-14 21:49:35,437 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 9713 transitions. Word has length 988 [2020-10-14 21:49:35,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:49:35,438 INFO L479 AbstractCegarLoop]: Abstraction has 8528 states and 9713 transitions. [2020-10-14 21:49:35,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 21:49:35,439 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 9713 transitions. [2020-10-14 21:49:35,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1084 [2020-10-14 21:49:35,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:49:35,465 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:49:35,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 21:49:35,466 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:49:35,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:49:35,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1858613742, now seen corresponding path program 1 times [2020-10-14 21:49:35,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:49:35,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879593522] [2020-10-14 21:49:35,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:49:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:35,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:36,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:37,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:38,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:38,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:40,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:40,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1109 [2020-10-14 21:49:40,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:49:40,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-14 21:49:40,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:40,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:40,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:40,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 968 [2020-10-14 21:49:40,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 21:49:40,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:40,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:40,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:40,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:40,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:40,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:40,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:40,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:49:40,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:40,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:40,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:40,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:40,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:40,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:40,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:40,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:40,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:40,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:49:40,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:40,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:49:40,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:40,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:40,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:40,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:40,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:40,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:40,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:49:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:40,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:40,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:40,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:49:40,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:40,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:49:40,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:40,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:40,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:40,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:40,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:40,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:40,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:49:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:40,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:40,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:40,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:49:40,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:40,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:49:40,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:40,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:40,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:40,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:40,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:40,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:40,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:49:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:40,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:41,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:41,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:49:41,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:41,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:49:41,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:41,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:41,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:41,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:41,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:41,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:41,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:49:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:41,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:41,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:41,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:49:41,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:41,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:49:41,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:41,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:41,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:41,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:41,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:41,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:41,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:49:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:41,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:41,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:41,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:49:41,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:41,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:49:41,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:41,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:41,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:41,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:41,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:41,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:41,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:49:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:41,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:41,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:41,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:49:41,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:41,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 21:49:41,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:41,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:41,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:41,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:41,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:49:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:41,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:41,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:41,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 21:49:41,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:41,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 21:49:41,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:41,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:41,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:41,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:41,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 21:49:41,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:41,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 952 [2020-10-14 21:49:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:41,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:41,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:41,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 21:49:41,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:41,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 21:49:41,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:41,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:41,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:41,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:41,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 21:49:41,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:41,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3733 backedges. 1074 proven. 2 refuted. 0 times theorem prover too weak. 2657 trivial. 0 not checked. [2020-10-14 21:49:41,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1879593522] [2020-10-14 21:49:41,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:49:41,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:49:41,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641098047] [2020-10-14 21:49:41,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:49:41,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:41,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:49:41,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:49:41,857 INFO L87 Difference]: Start difference. First operand 8528 states and 9713 transitions. Second operand 7 states. [2020-10-14 21:49:43,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:49:43,435 INFO L93 Difference]: Finished difference Result 17626 states and 20277 transitions. [2020-10-14 21:49:43,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 21:49:43,440 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1083 [2020-10-14 21:49:43,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:49:43,463 INFO L225 Difference]: With dead ends: 17626 [2020-10-14 21:49:43,463 INFO L226 Difference]: Without dead ends: 7072 [2020-10-14 21:49:43,487 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:49:43,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7072 states. [2020-10-14 21:49:43,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7072 to 6486. [2020-10-14 21:49:43,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6486 states. [2020-10-14 21:49:43,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6486 states to 6486 states and 7127 transitions. [2020-10-14 21:49:43,620 INFO L78 Accepts]: Start accepts. Automaton has 6486 states and 7127 transitions. Word has length 1083 [2020-10-14 21:49:43,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:49:43,621 INFO L479 AbstractCegarLoop]: Abstraction has 6486 states and 7127 transitions. [2020-10-14 21:49:43,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:49:43,621 INFO L276 IsEmpty]: Start isEmpty. Operand 6486 states and 7127 transitions. [2020-10-14 21:49:43,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1112 [2020-10-14 21:49:43,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:49:43,648 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:49:43,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 21:49:43,649 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:49:43,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:49:43,650 INFO L82 PathProgramCache]: Analyzing trace with hash 2115451274, now seen corresponding path program 1 times [2020-10-14 21:49:43,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:49:43,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274999914] [2020-10-14 21:49:43,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:49:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:43,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:44,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:45,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:45,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:46,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:48,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:48,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1137 [2020-10-14 21:49:48,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 21:49:48,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5085 [2020-10-14 21:49:48,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:48,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:48,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:48,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 956 [2020-10-14 21:49:48,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 21:49:48,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:49,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:49,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:49,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:49,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:49,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:49,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:49:49,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:49,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:49,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:49,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:49,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:49,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:49,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:49,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:49,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:49,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:49:49,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:49,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:49:49,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:49,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:49,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:49,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:49,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:49,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:49,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:49:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:49,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:49,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:49,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:49:49,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:49,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 21:49:49,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:49,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:49,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:49,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:49:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:49,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:49,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:49,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:49:49,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:49,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:49:49,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:49,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:49,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:49,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:49:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:49,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:49,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:49,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:49:49,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:49,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:49:49,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:49,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:49,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:49,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:49,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:49,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:49,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:49:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:49,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:49,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:49,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:49:49,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:49,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:49:49,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:49,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:49,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:49,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:49:49,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:49:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:49,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:49,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:49,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:49:49,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:49,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:49:49,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:49,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:49,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:49,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:49,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:49,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:49,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:49:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:49,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:49,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:49,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:49:49,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:49,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:49:49,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:49,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:49,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:49,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:49,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:49,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:49,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:49:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:49,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:49,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:49,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 21:49:49,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:49,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 21:49:49,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:49,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 21:49:49,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:49,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 940 [2020-10-14 21:49:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:49,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:49,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:49,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 21:49:49,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:49,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 21:49:49,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:49,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:49,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:49:49,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:49,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 21:49:49,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:50,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3796 backedges. 1197 proven. 2 refuted. 0 times theorem prover too weak. 2597 trivial. 0 not checked. [2020-10-14 21:49:50,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274999914] [2020-10-14 21:49:50,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:49:50,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:49:50,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231391544] [2020-10-14 21:49:50,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:49:50,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:50,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:49:50,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:49:50,242 INFO L87 Difference]: Start difference. First operand 6486 states and 7127 transitions. Second operand 7 states. [2020-10-14 21:49:51,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:49:51,667 INFO L93 Difference]: Finished difference Result 12262 states and 13533 transitions. [2020-10-14 21:49:51,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:49:51,668 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1111 [2020-10-14 21:49:51,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:49:51,682 INFO L225 Difference]: With dead ends: 12262 [2020-10-14 21:49:51,683 INFO L226 Difference]: Without dead ends: 4298 [2020-10-14 21:49:51,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:49:51,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4298 states. [2020-10-14 21:49:51,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4298 to 4258. [2020-10-14 21:49:51,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4258 states. [2020-10-14 21:49:51,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4258 states to 4258 states and 4473 transitions. [2020-10-14 21:49:51,768 INFO L78 Accepts]: Start accepts. Automaton has 4258 states and 4473 transitions. Word has length 1111 [2020-10-14 21:49:51,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:49:51,769 INFO L479 AbstractCegarLoop]: Abstraction has 4258 states and 4473 transitions. [2020-10-14 21:49:51,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:49:51,769 INFO L276 IsEmpty]: Start isEmpty. Operand 4258 states and 4473 transitions. [2020-10-14 21:49:51,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1112 [2020-10-14 21:49:51,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:49:51,792 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:49:51,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 21:49:51,794 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:49:51,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:49:51,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1799519786, now seen corresponding path program 1 times [2020-10-14 21:49:51,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:49:51,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139875866] [2020-10-14 21:49:51,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:49:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:52,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:52,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:54,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:57,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:57,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1137 [2020-10-14 21:49:57,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:49:57,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 21:49:57,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:57,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:57,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 21:49:57,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 985 [2020-10-14 21:49:57,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-14 21:49:57,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:57,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:49:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:57,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:57,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:57,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:49:57,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:57,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:49:57,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:57,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:57,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:57,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:57,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:57,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:57,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:49:57,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:57,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:57,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:57,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:49:57,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:57,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:49:57,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:57,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:57,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:57,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:57,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:57,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:57,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:49:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:57,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:57,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:57,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:49:57,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:57,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:49:57,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:57,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:57,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:57,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:57,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:57,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:57,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:49:57,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:57,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:57,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:57,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:49:57,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:57,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:49:57,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:57,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:57,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:57,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:57,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:57,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:57,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:49:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:57,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:57,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:57,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:49:57,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:57,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:49:57,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:57,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:57,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:57,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:57,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:57,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:57,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:49:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:57,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:57,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:57,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:49:57,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:57,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:49:57,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:57,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:57,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:57,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:57,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:57,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:57,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:49:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:57,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:57,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:57,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:49:57,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:57,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:49:57,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:57,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:57,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:57,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:57,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:57,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:57,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:49:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:57,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:57,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:57,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:49:57,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:57,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:49:57,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:57,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:57,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:49:57,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:57,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:49:57,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:57,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:49:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:57,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:57,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:57,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 21:49:57,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:57,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 21:49:57,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:57,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:57,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:49:57,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:49:57,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 21:49:57,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:57,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-14 21:49:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:49:57,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:49:57,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:49:57,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 21:49:57,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:49:57,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 21:49:57,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:49:57,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:49:57,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:49:57,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:49:57,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 21:49:57,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:49:58,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3879 backedges. 1097 proven. 45 refuted. 0 times theorem prover too weak. 2737 trivial. 0 not checked. [2020-10-14 21:49:58,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139875866] [2020-10-14 21:49:58,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:49:58,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 21:49:58,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737844883] [2020-10-14 21:49:58,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 21:49:58,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:49:58,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 21:49:58,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 21:49:58,423 INFO L87 Difference]: Start difference. First operand 4258 states and 4473 transitions. Second operand 8 states. [2020-10-14 21:50:00,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:50:00,193 INFO L93 Difference]: Finished difference Result 5546 states and 5831 transitions. [2020-10-14 21:50:00,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 21:50:00,194 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1111 [2020-10-14 21:50:00,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:50:00,204 INFO L225 Difference]: With dead ends: 5546 [2020-10-14 21:50:00,204 INFO L226 Difference]: Without dead ends: 5360 [2020-10-14 21:50:00,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-14 21:50:00,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5360 states. [2020-10-14 21:50:00,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5360 to 4812. [2020-10-14 21:50:00,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4812 states. [2020-10-14 21:50:00,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4812 states to 4812 states and 5077 transitions. [2020-10-14 21:50:00,273 INFO L78 Accepts]: Start accepts. Automaton has 4812 states and 5077 transitions. Word has length 1111 [2020-10-14 21:50:00,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:50:00,274 INFO L479 AbstractCegarLoop]: Abstraction has 4812 states and 5077 transitions. [2020-10-14 21:50:00,274 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 21:50:00,274 INFO L276 IsEmpty]: Start isEmpty. Operand 4812 states and 5077 transitions. [2020-10-14 21:50:00,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1141 [2020-10-14 21:50:00,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:50:00,304 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:50:00,304 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 21:50:00,304 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:50:00,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:50:00,305 INFO L82 PathProgramCache]: Analyzing trace with hash -1900786523, now seen corresponding path program 1 times [2020-10-14 21:50:00,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:50:00,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1989667789] [2020-10-14 21:50:00,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:50:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:00,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:01,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:01,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:03,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:05,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:05,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1166 [2020-10-14 21:50:05,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:50:05,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-14 21:50:05,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:05,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 985 [2020-10-14 21:50:05,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 21:50:05,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:05,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:50:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:05,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:05,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:05,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:50:05,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:05,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:50:05,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:05,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:05,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:05,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:05,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:05,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:05,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:50:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:05,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:05,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:05,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:50:05,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:05,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:50:05,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:05,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:05,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:05,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:05,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:05,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:05,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:50:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:05,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:05,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:05,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:50:05,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:05,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:50:05,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:05,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:05,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:05,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:05,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:05,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:05,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:50:05,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:05,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:05,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:05,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:50:05,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:05,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:50:05,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:05,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:05,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:05,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:05,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:05,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:05,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:50:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:05,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:05,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:05,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:50:05,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:05,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:50:05,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:05,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:05,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:05,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:05,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:05,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:05,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:50:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:05,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:05,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:05,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:50:05,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:05,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:50:05,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:05,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:05,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:05,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:05,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:05,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:05,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:50:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:05,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:05,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:05,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:50:05,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:05,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:50:05,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:05,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:05,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:05,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:05,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:05,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:05,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:50:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:05,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:06,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:06,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:50:06,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:06,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:50:06,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:06,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:06,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:06,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:06,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:06,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:06,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:50:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:06,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:06,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:06,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 21:50:06,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:06,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 21:50:06,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:06,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:50:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:06,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 21:50:06,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:06,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-14 21:50:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:06,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:06,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:06,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 21:50:06,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:06,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 21:50:06,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:06,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:06,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:06,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:06,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 21:50:06,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:06,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3965 backedges. 1226 proven. 2 refuted. 0 times theorem prover too weak. 2737 trivial. 0 not checked. [2020-10-14 21:50:06,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1989667789] [2020-10-14 21:50:06,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:50:06,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:50:06,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219305031] [2020-10-14 21:50:06,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:50:06,998 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:50:06,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:50:06,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:50:06,998 INFO L87 Difference]: Start difference. First operand 4812 states and 5077 transitions. Second operand 7 states. [2020-10-14 21:50:08,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:50:08,391 INFO L93 Difference]: Finished difference Result 9436 states and 9975 transitions. [2020-10-14 21:50:08,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 21:50:08,392 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1140 [2020-10-14 21:50:08,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:50:08,401 INFO L225 Difference]: With dead ends: 9436 [2020-10-14 21:50:08,401 INFO L226 Difference]: Without dead ends: 4996 [2020-10-14 21:50:08,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 21:50:08,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4996 states. [2020-10-14 21:50:08,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4996 to 4994. [2020-10-14 21:50:08,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4994 states. [2020-10-14 21:50:08,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4994 states to 4994 states and 5263 transitions. [2020-10-14 21:50:08,477 INFO L78 Accepts]: Start accepts. Automaton has 4994 states and 5263 transitions. Word has length 1140 [2020-10-14 21:50:08,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:50:08,479 INFO L479 AbstractCegarLoop]: Abstraction has 4994 states and 5263 transitions. [2020-10-14 21:50:08,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:50:08,479 INFO L276 IsEmpty]: Start isEmpty. Operand 4994 states and 5263 transitions. [2020-10-14 21:50:08,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1209 [2020-10-14 21:50:08,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:50:08,505 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:50:08,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 21:50:08,506 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:50:08,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:50:08,506 INFO L82 PathProgramCache]: Analyzing trace with hash 1934731041, now seen corresponding path program 1 times [2020-10-14 21:50:08,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:50:08,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649140033] [2020-10-14 21:50:08,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:50:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:08,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:09,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:11,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:13,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:13,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1236 [2020-10-14 21:50:13,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 21:50:13,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 21:50:13,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:13,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:13,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-14 21:50:13,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-14 21:50:13,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 306 [2020-10-14 21:50:13,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:13,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:50:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:13,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:13,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:13,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:50:13,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:13,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:50:13,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:13,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:13,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:13,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:13,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:13,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:13,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:50:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:13,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:13,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:13,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:50:13,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:13,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 21:50:13,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:13,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:13,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:13,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:13,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:13,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:13,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:50:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:13,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:14,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:14,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:50:14,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:14,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:50:14,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:14,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:14,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:14,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:14,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:14,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:14,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:50:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:14,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:14,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:14,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:50:14,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:14,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:50:14,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:14,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:14,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:14,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:50:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:14,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:14,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:14,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:50:14,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:14,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:50:14,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:14,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:14,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:14,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:14,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:14,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:14,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:50:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:14,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:14,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:14,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:50:14,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:14,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 21:50:14,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:14,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:14,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:14,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:14,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:14,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:14,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:50:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:14,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:14,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:14,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:50:14,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:14,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:50:14,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:14,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:14,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:50:14,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:14,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 21:50:14,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:14,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:50:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:14,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:14,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:14,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:50:14,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:14,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-10-14 21:50:14,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:14,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:14,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:50:14,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:14,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:50:14,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:50:14,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:50:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:14,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:14,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:15,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:15,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 21:50:15,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:50:15,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-10-14 21:50:15,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:15,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:15,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:15,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:15,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 21:50:15,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:15,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 987 [2020-10-14 21:50:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:15,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:15,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:15,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:50:15,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:15,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:50:15,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:15,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:15,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:15,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 21:50:15,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:15,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:15,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1066 [2020-10-14 21:50:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:15,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:15,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:15,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 21:50:15,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:15,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 21:50:15,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:15,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:15,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:15,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-14 21:50:15,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:15,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:16,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4666 backedges. 1732 proven. 481 refuted. 0 times theorem prover too weak. 2453 trivial. 0 not checked. [2020-10-14 21:50:16,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649140033] [2020-10-14 21:50:16,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:50:16,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 21:50:16,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307017775] [2020-10-14 21:50:16,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 21:50:16,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:50:16,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 21:50:16,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:50:16,221 INFO L87 Difference]: Start difference. First operand 4994 states and 5263 transitions. Second operand 11 states. [2020-10-14 21:50:19,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:50:19,020 INFO L93 Difference]: Finished difference Result 9990 states and 10549 transitions. [2020-10-14 21:50:19,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 21:50:19,022 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1208 [2020-10-14 21:50:19,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:50:19,032 INFO L225 Difference]: With dead ends: 9990 [2020-10-14 21:50:19,033 INFO L226 Difference]: Without dead ends: 5368 [2020-10-14 21:50:19,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-10-14 21:50:19,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5368 states. [2020-10-14 21:50:19,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5368 to 4994. [2020-10-14 21:50:19,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4994 states. [2020-10-14 21:50:19,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4994 states to 4994 states and 5253 transitions. [2020-10-14 21:50:19,109 INFO L78 Accepts]: Start accepts. Automaton has 4994 states and 5253 transitions. Word has length 1208 [2020-10-14 21:50:19,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:50:19,110 INFO L479 AbstractCegarLoop]: Abstraction has 4994 states and 5253 transitions. [2020-10-14 21:50:19,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 21:50:19,110 INFO L276 IsEmpty]: Start isEmpty. Operand 4994 states and 5253 transitions. [2020-10-14 21:50:19,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1327 [2020-10-14 21:50:19,137 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:50:19,139 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:50:19,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-14 21:50:19,139 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:50:19,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:50:19,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1294710915, now seen corresponding path program 1 times [2020-10-14 21:50:19,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:50:19,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808133337] [2020-10-14 21:50:19,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:50:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:19,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:19,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:21,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:24,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:24,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:24,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1356 [2020-10-14 21:50:24,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:50:24,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5182 [2020-10-14 21:50:24,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:24,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 21:50:24,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-14 21:50:24,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 434 [2020-10-14 21:50:24,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:24,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:50:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:24,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:24,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:24,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:50:24,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:24,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:50:24,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:24,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:24,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:24,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:24,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:24,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:24,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:50:24,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:24,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:24,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:24,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:50:24,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:24,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:50:24,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:24,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:24,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:24,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:50:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:24,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:24,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:24,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:50:24,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:24,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:50:24,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:24,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:24,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:24,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:24,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:24,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:24,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:50:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:24,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:24,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:24,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:50:24,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:24,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:50:24,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:24,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:24,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:24,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:24,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:24,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:24,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:50:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:24,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:24,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:24,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:50:24,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:24,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 21:50:24,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:24,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:24,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:24,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:24,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:24,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:24,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:50:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:24,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:24,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:24,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:50:24,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:24,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 21:50:24,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:24,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:24,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:24,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:24,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:24,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:25,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:50:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:25,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:25,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:25,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:50:25,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:25,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 21:50:25,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:25,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:25,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:50:25,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:25,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 21:50:25,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:50:25,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:50:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:25,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:25,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:25,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:50:25,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:25,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-14 21:50:25,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:25,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:25,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:50:25,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:25,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-14 21:50:25,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:25,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:50:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:25,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:25,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:25,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:50:25,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:25,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 21:50:25,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:25,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:25,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:25,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:25,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 21:50:25,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:25,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:50:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:25,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:25,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:25,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 21:50:25,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:25,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 21:50:25,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:25,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:25,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:25,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:25,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 21:50:25,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:25,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1105 [2020-10-14 21:50:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:25,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:25,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:25,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:50:25,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:25,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:50:25,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:25,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:25,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:25,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 21:50:25,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:25,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:25,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1184 [2020-10-14 21:50:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:25,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:25,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:25,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 21:50:25,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:25,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 21:50:25,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:25,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:25,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:25,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-14 21:50:25,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:25,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:27,288 INFO L134 CoverageAnalysis]: Checked inductivity of 5735 backedges. 2385 proven. 883 refuted. 0 times theorem prover too weak. 2467 trivial. 0 not checked. [2020-10-14 21:50:27,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808133337] [2020-10-14 21:50:27,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:50:27,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 21:50:27,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708620814] [2020-10-14 21:50:27,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 21:50:27,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:50:27,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 21:50:27,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:50:27,291 INFO L87 Difference]: Start difference. First operand 4994 states and 5253 transitions. Second operand 11 states. [2020-10-14 21:50:29,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:50:29,758 INFO L93 Difference]: Finished difference Result 10170 states and 10719 transitions. [2020-10-14 21:50:29,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 21:50:29,762 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1326 [2020-10-14 21:50:29,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:50:29,770 INFO L225 Difference]: With dead ends: 10170 [2020-10-14 21:50:29,770 INFO L226 Difference]: Without dead ends: 5548 [2020-10-14 21:50:29,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2020-10-14 21:50:29,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5548 states. [2020-10-14 21:50:29,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5548 to 5176. [2020-10-14 21:50:29,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5176 states. [2020-10-14 21:50:29,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 5439 transitions. [2020-10-14 21:50:29,841 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 5439 transitions. Word has length 1326 [2020-10-14 21:50:29,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:50:29,842 INFO L479 AbstractCegarLoop]: Abstraction has 5176 states and 5439 transitions. [2020-10-14 21:50:29,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-14 21:50:29,842 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 5439 transitions. [2020-10-14 21:50:29,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1400 [2020-10-14 21:50:29,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:50:29,866 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:50:29,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-14 21:50:29,866 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:50:29,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:50:29,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1852233822, now seen corresponding path program 1 times [2020-10-14 21:50:29,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:50:29,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1303909752] [2020-10-14 21:50:29,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:50:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:30,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:30,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:31,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:32,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:35,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:35,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1429 [2020-10-14 21:50:35,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:50:35,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 21:50:35,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:35,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:35,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:35,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1248 [2020-10-14 21:50:35,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 21:50:35,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:35,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:50:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:35,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:35,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:35,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:50:35,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:35,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:50:35,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:35,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:35,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:35,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:35,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:35,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:35,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:50:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:35,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:35,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:35,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:50:35,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:35,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:50:35,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:35,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:35,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:35,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:35,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:35,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:35,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:50:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:35,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:35,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:35,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:50:35,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:35,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:50:35,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:35,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:35,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:35,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:35,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:35,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:35,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:50:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:35,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:35,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:35,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:50:35,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:35,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:50:35,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:35,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:35,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:35,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:35,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:50:35,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:35,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:35,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:35,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:50:35,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:35,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:50:35,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:35,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:35,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:35,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:35,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:35,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:35,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:50:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:35,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:35,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:35,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:50:35,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:35,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 21:50:35,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:35,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:35,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:35,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:35,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:35,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:35,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:50:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:35,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:35,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:35,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:50:35,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:35,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 21:50:35,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:35,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:35,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:35,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:35,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:35,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:50:35,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:50:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:35,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:35,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:35,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:50:35,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:35,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 21:50:35,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:35,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:35,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:35,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:35,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:35,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:35,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:50:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:35,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:35,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:35,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:50:35,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:35,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:50:35,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:35,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:35,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:35,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:35,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:35,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:35,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:50:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:35,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:35,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:35,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:50:35,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:35,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 21:50:35,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:35,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:35,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:35,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:35,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:35,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:35,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:50:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:35,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:35,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:35,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:50:35,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:35,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 21:50:35,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:35,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:35,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:50:35,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:35,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 21:50:35,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:35,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1228 [2020-10-14 21:50:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:35,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:36,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:36,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 21:50:36,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:36,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-14 21:50:36,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:36,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:36,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:36,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:36,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 21:50:36,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:36,874 INFO L134 CoverageAnalysis]: Checked inductivity of 6143 backedges. 1559 proven. 2 refuted. 0 times theorem prover too weak. 4582 trivial. 0 not checked. [2020-10-14 21:50:36,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1303909752] [2020-10-14 21:50:36,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:50:36,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:50:36,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323571061] [2020-10-14 21:50:36,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:50:36,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:50:36,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:50:36,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:50:36,877 INFO L87 Difference]: Start difference. First operand 5176 states and 5439 transitions. Second operand 7 states. [2020-10-14 21:50:38,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:50:38,377 INFO L93 Difference]: Finished difference Result 9988 states and 10511 transitions. [2020-10-14 21:50:38,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 21:50:38,378 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1399 [2020-10-14 21:50:38,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:50:38,388 INFO L225 Difference]: With dead ends: 9988 [2020-10-14 21:50:38,389 INFO L226 Difference]: Without dead ends: 5184 [2020-10-14 21:50:38,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:50:38,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5184 states. [2020-10-14 21:50:38,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5184 to 5176. [2020-10-14 21:50:38,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5176 states. [2020-10-14 21:50:38,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 5363 transitions. [2020-10-14 21:50:38,458 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 5363 transitions. Word has length 1399 [2020-10-14 21:50:38,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:50:38,459 INFO L479 AbstractCegarLoop]: Abstraction has 5176 states and 5363 transitions. [2020-10-14 21:50:38,459 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:50:38,459 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 5363 transitions. [2020-10-14 21:50:38,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1585 [2020-10-14 21:50:38,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:50:38,496 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:50:38,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-14 21:50:38,496 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:50:38,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:50:38,497 INFO L82 PathProgramCache]: Analyzing trace with hash 544585409, now seen corresponding path program 1 times [2020-10-14 21:50:38,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:50:38,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782344019] [2020-10-14 21:50:38,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:50:38,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:39,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:39,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:41,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:42,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:43,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:43,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1618 [2020-10-14 21:50:43,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:50:43,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5084 [2020-10-14 21:50:43,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:43,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:50:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-14 21:50:43,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 21:50:43,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:44,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:50:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:44,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:44,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:44,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:50:44,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:44,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:50:44,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:44,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:44,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:44,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:44,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:44,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:44,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:50:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:44,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:44,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:44,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:50:44,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:44,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:50:44,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:44,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:44,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:44,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:44,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:44,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:44,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:50:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:44,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:44,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:44,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:50:44,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:44,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:50:44,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:44,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:44,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:44,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:44,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:44,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:44,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:50:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:44,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:44,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:44,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:50:44,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:44,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 21:50:44,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:44,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:44,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:44,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:44,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:44,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:50:44,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:50:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:44,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:44,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:44,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:50:44,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:44,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:50:44,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:44,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:44,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:44,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:44,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:44,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:44,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:50:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:44,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:44,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:44,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:50:44,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:44,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 21:50:44,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:44,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:44,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:44,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:44,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:44,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:50:44,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:50:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:44,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:44,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:44,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:50:44,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:44,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:50:44,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:44,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:44,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:44,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:44,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:50:44,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:50:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:44,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:44,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:44,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:50:44,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:44,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 21:50:44,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:44,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:44,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:44,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:44,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:44,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:50:44,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:50:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:44,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:44,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:44,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:50:44,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:44,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 21:50:44,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:44,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:44,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:44,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:44,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:44,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:44,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:50:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:44,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:44,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:44,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:50:44,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:44,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 21:50:44,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:44,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:44,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:50:44,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:44,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 21:50:44,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:44,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:50:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:44,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:44,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:44,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:44,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:50:44,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:50:44,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 21:50:44,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:44,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:44,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:44,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:44,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 21:50:44,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:44,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1233 [2020-10-14 21:50:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:44,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:45,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:45,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 21:50:45,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:45,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 21:50:45,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:45,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:45,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:50:45,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 21:50:45,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:45,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1363 [2020-10-14 21:50:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:45,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:45,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:45,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:50:45,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:45,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:50:45,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:45,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:45,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:45,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 21:50:45,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:45,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:45,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1442 [2020-10-14 21:50:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:45,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:45,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:45,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 21:50:45,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:45,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 21:50:45,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:45,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:45,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:45,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-14 21:50:45,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:45,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:46,534 INFO L134 CoverageAnalysis]: Checked inductivity of 8283 backedges. 2542 proven. 358 refuted. 0 times theorem prover too weak. 5383 trivial. 0 not checked. [2020-10-14 21:50:46,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782344019] [2020-10-14 21:50:46,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:50:46,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:50:46,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462531671] [2020-10-14 21:50:46,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:50:46,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:50:46,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:50:46,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:50:46,536 INFO L87 Difference]: Start difference. First operand 5176 states and 5363 transitions. Second operand 7 states. [2020-10-14 21:50:48,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:50:48,634 INFO L93 Difference]: Finished difference Result 9988 states and 10359 transitions. [2020-10-14 21:50:48,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 21:50:48,635 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1584 [2020-10-14 21:50:48,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:50:48,646 INFO L225 Difference]: With dead ends: 9988 [2020-10-14 21:50:48,646 INFO L226 Difference]: Without dead ends: 5184 [2020-10-14 21:50:48,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 21:50:48,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5184 states. [2020-10-14 21:50:48,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5184 to 5176. [2020-10-14 21:50:48,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5176 states. [2020-10-14 21:50:48,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 5345 transitions. [2020-10-14 21:50:48,715 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 5345 transitions. Word has length 1584 [2020-10-14 21:50:48,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:50:48,717 INFO L479 AbstractCegarLoop]: Abstraction has 5176 states and 5345 transitions. [2020-10-14 21:50:48,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:50:48,717 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 5345 transitions. [2020-10-14 21:50:48,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1709 [2020-10-14 21:50:48,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:50:48,750 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2020-10-14 21:50:48,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-14 21:50:48,750 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:50:48,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:50:48,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1592848241, now seen corresponding path program 1 times [2020-10-14 21:50:48,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:50:48,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2008950273] [2020-10-14 21:50:48,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:50:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:49,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:50,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:51,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:51,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1742 [2020-10-14 21:50:51,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:50:51,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2076 [2020-10-14 21:50:51,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:51,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:51,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:50:51,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1697 [2020-10-14 21:50:51,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 21:50:51,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:51,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:50:51,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:51,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:51,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:51,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:50:51,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:51,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:50:51,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:51,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:51,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:51,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:51,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:51,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:51,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:50:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:51,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:51,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:51,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:50:51,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:51,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 21:50:51,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:51,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:51,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:51,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:51,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:51,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:51,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:50:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:51,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:51,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:51,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:50:51,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:51,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 21:50:51,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:51,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:51,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:51,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:51,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:51,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:51,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:50:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:51,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:51,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:51,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:50:51,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:51,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:50:51,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:51,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:51,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:51,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:51,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:51,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:51,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:50:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:51,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:51,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:51,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:50:51,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:51,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 21:50:51,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:51,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:51,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:51,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:51,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:51,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:51,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:50:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:51,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:51,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:51,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:50:51,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:51,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 21:50:51,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:51,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:51,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:51,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:51,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:51,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:51,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:50:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:51,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:51,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:51,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:50:51,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:51,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:50:51,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:51,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:51,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:51,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:51,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:51,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:51,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:50:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:51,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:51,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:51,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:50:51,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:51,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:50:51,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:51,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:51,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:51,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:51,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:51,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:51,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:50:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:51,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:51,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:51,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:50:51,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:51,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 21:50:51,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:51,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:51,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:51,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:51,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:51,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:51,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:50:51,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:51,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:51,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:51,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:50:51,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:51,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 21:50:51,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:51,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:51,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:51,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:51,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:51,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:51,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:50:51,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:51,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:51,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:51,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:50:51,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:51,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 21:50:51,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:51,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:51,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:51,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:51,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:51,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:51,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:50:51,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:51,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:51,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:51,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:50:51,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:51,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:50:51,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:51,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:51,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:51,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:51,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:51,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:51,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:50:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:51,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:52,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:52,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 21:50:52,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:52,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 21:50:52,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:52,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:52,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:50:52,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:52,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:50:52,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:52,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-14 21:50:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:52,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:52,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:52,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 21:50:52,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:50:52,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 21:50:52,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:52,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:52,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:50:52,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:50:52,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-14 21:50:52,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:50:53,261 INFO L134 CoverageAnalysis]: Checked inductivity of 8932 backedges. 517 proven. 13 refuted. 0 times theorem prover too weak. 8402 trivial. 0 not checked. [2020-10-14 21:50:53,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2008950273] [2020-10-14 21:50:53,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:50:53,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 21:50:53,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277726355] [2020-10-14 21:50:53,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 21:50:53,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:50:53,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 21:50:53,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 21:50:53,263 INFO L87 Difference]: Start difference. First operand 5176 states and 5345 transitions. Second operand 5 states. [2020-10-14 21:50:54,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:50:54,393 INFO L93 Difference]: Finished difference Result 11082 states and 11484 transitions. [2020-10-14 21:50:54,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 21:50:54,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1708 [2020-10-14 21:50:54,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:50:54,403 INFO L225 Difference]: With dead ends: 11082 [2020-10-14 21:50:54,403 INFO L226 Difference]: Without dead ends: 5718 [2020-10-14 21:50:54,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 21:50:54,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5718 states. [2020-10-14 21:50:54,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5718 to 5172. [2020-10-14 21:50:54,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5172 states. [2020-10-14 21:50:54,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 5296 transitions. [2020-10-14 21:50:54,476 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 5296 transitions. Word has length 1708 [2020-10-14 21:50:54,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:50:54,477 INFO L479 AbstractCegarLoop]: Abstraction has 5172 states and 5296 transitions. [2020-10-14 21:50:54,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 21:50:54,478 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 5296 transitions. [2020-10-14 21:50:54,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1880 [2020-10-14 21:50:54,514 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:50:54,515 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 21:50:54,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-14 21:50:54,515 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:50:54,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:50:54,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1215413966, now seen corresponding path program 1 times [2020-10-14 21:50:54,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:50:54,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356989708] [2020-10-14 21:50:54,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:50:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:50:54,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:55,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:57,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:59,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:50:59,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:50:59,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1917 [2020-10-14 21:50:59,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 21:50:59,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5116 [2020-10-14 21:50:59,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:50:59,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:50:59,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 21:50:59,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1432 [2020-10-14 21:50:59,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 21:50:59,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:00,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:51:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:00,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:00,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:00,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:51:00,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:00,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 21:51:00,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:00,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:00,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:00,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:00,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:00,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:00,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:51:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:00,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:00,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:00,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:51:00,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:00,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:00,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:00,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:00,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:00,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:00,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:00,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:00,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:51:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:00,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:00,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:00,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:51:00,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:00,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:00,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:00,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:00,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:00,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:00,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:51:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:00,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:00,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:00,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:51:00,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:00,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:00,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:00,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:00,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:00,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:00,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:00,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:00,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:51:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:00,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:00,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:00,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:51:00,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:00,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 21:51:00,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:00,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:00,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:00,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:00,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:00,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:00,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:51:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:00,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:00,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:00,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:51:00,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:00,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:51:00,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:00,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:00,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:00,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:00,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:00,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:00,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:51:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:00,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:00,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:00,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:51:00,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:00,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 21:51:00,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:00,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:00,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:00,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:00,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:00,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:00,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:51:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:00,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:00,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:00,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:51:00,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:00,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:51:00,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:00,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:00,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:00,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:00,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:00,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:00,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:51:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:00,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:00,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:00,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:51:00,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:00,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:51:00,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:00,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:00,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:00,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:00,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:00,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:00,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:51:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:00,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:00,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:00,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:51:00,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:00,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 21:51:00,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:00,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:00,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:00,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:00,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:00,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:00,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:51:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:00,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:00,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:00,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:51:00,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:00,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 21:51:00,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:00,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:00,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:00,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:00,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:51:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:00,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:00,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:00,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:51:00,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:00,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 21:51:00,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:00,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:00,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:51:00,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:00,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 21:51:00,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:00,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:51:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:00,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:00,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:00,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:00,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:51:00,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:51:00,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-14 21:51:00,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:00,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:51:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:51:00,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 21:51:00,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:00,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1528 [2020-10-14 21:51:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:00,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:01,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:01,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 21:51:01,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:01,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 21:51:01,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:01,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:01,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:51:01,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:51:01,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-14 21:51:01,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:01,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1658 [2020-10-14 21:51:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:01,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:01,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:01,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:51:01,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:01,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 21:51:01,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:01,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 21:51:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:01,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:01,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1737 [2020-10-14 21:51:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:01,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:01,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:01,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 21:51:01,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:01,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 21:51:01,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:01,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:01,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:01,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-14 21:51:01,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:01,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:02,823 INFO L134 CoverageAnalysis]: Checked inductivity of 11362 backedges. 3110 proven. 358 refuted. 0 times theorem prover too weak. 7894 trivial. 0 not checked. [2020-10-14 21:51:02,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356989708] [2020-10-14 21:51:02,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:51:02,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 21:51:02,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361512879] [2020-10-14 21:51:02,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 21:51:02,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:51:02,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 21:51:02,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 21:51:02,827 INFO L87 Difference]: Start difference. First operand 5172 states and 5296 transitions. Second operand 7 states. [2020-10-14 21:51:04,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:51:04,710 INFO L93 Difference]: Finished difference Result 9980 states and 10225 transitions. [2020-10-14 21:51:04,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 21:51:04,711 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1879 [2020-10-14 21:51:04,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:51:04,719 INFO L225 Difference]: With dead ends: 9980 [2020-10-14 21:51:04,719 INFO L226 Difference]: Without dead ends: 5180 [2020-10-14 21:51:04,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 21:51:04,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2020-10-14 21:51:04,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 5172. [2020-10-14 21:51:04,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5172 states. [2020-10-14 21:51:04,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 5292 transitions. [2020-10-14 21:51:04,768 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 5292 transitions. Word has length 1879 [2020-10-14 21:51:04,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:51:04,769 INFO L479 AbstractCegarLoop]: Abstraction has 5172 states and 5292 transitions. [2020-10-14 21:51:04,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 21:51:04,769 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 5292 transitions. [2020-10-14 21:51:04,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1884 [2020-10-14 21:51:04,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:51:04,793 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2020-10-14 21:51:04,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-14 21:51:04,794 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:51:04,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:51:04,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1154295674, now seen corresponding path program 1 times [2020-10-14 21:51:04,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:51:04,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707390601] [2020-10-14 21:51:04,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:51:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:05,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:07,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:10,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:10,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1921 [2020-10-14 21:51:10,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 21:51:10,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5187 [2020-10-14 21:51:10,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:10,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 21:51:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1688 [2020-10-14 21:51:10,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 200 [2020-10-14 21:51:10,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:10,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 21:51:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:10,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:10,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:10,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 21:51:10,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:10,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 21:51:10,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:10,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:10,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:10,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:10,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:10,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:51:10,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 21:51:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:10,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:10,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:10,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 21:51:10,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:10,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 21:51:10,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:10,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:10,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:10,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:10,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:10,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:51:10,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 21:51:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:10,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:10,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:10,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 21:51:10,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:10,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 21:51:10,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:10,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:10,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:10,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:10,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:51:10,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-14 21:51:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:10,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:10,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:10,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 21:51:10,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:10,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 21:51:10,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:10,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:10,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:10,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:10,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:10,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:10,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 21:51:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:10,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:10,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:10,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-14 21:51:10,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:10,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:51:10,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:10,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:10,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:10,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:10,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:10,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:10,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-14 21:51:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:10,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:10,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:10,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-14 21:51:10,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:10,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 21:51:10,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:10,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:10,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:10,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:10,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:10,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:10,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-14 21:51:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:10,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:10,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:10,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 21:51:10,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:10,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 21:51:10,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:10,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:10,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:10,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:10,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:10,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:11,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-14 21:51:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:11,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:11,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:11,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-14 21:51:11,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:11,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 21:51:11,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:11,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:11,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:11,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:11,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:11,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:11,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-14 21:51:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:11,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:11,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:11,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 21:51:11,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:11,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:51:11,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:11,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:11,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:11,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:11,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:11,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:11,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-14 21:51:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:11,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:11,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:11,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 21:51:11,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:11,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 21:51:11,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:11,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:11,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:11,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:11,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:11,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:11,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-14 21:51:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:11,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:11,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:11,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-14 21:51:11,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:11,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 21:51:11,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:11,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:11,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:11,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:11,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:11,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:11,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-14 21:51:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:11,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:11,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:11,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 21:51:11,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:11,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 21:51:11,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:11,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:11,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:11,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:11,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:11,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:11,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-14 21:51:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:11,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:11,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:11,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 21:51:11,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:11,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 21:51:11,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:11,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:11,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 21:51:11,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:11,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 21:51:11,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:11,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-14 21:51:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:11,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:11,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:11,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-14 21:51:11,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:11,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 21:51:11,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:11,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:11,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 21:51:11,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 21:51:11,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-14 21:51:11,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:11,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1662 [2020-10-14 21:51:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:11,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:11,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:11,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 21:51:11,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:11,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 21:51:11,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:11,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:11,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 21:51:11,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:51:11,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 21:51:11,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 21:51:11,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1741 [2020-10-14 21:51:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:11,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:11,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 21:51:11,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 21:51:11,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 21:51:11,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-14 21:51:11,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 21:51:11,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 21:51:11,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 21:51:11,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 21:51:11,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 21:51:11,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 21:51:13,210 INFO L134 CoverageAnalysis]: Checked inductivity of 11385 backedges. 2893 proven. 97 refuted. 0 times theorem prover too weak. 8395 trivial. 0 not checked. [2020-10-14 21:51:13,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707390601] [2020-10-14 21:51:13,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 21:51:13,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 21:51:13,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289745133] [2020-10-14 21:51:13,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 21:51:13,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 21:51:13,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 21:51:13,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-14 21:51:13,213 INFO L87 Difference]: Start difference. First operand 5172 states and 5292 transitions. Second operand 9 states. [2020-10-14 21:51:14,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 21:51:14,761 INFO L93 Difference]: Finished difference Result 6281 states and 6438 transitions. [2020-10-14 21:51:14,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 21:51:14,762 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1883 [2020-10-14 21:51:14,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 21:51:14,771 INFO L225 Difference]: With dead ends: 6281 [2020-10-14 21:51:14,772 INFO L226 Difference]: Without dead ends: 6088 [2020-10-14 21:51:14,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-14 21:51:14,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6088 states. [2020-10-14 21:51:14,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6088 to 5542. [2020-10-14 21:51:14,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5542 states. [2020-10-14 21:51:14,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5542 states to 5542 states and 5669 transitions. [2020-10-14 21:51:14,836 INFO L78 Accepts]: Start accepts. Automaton has 5542 states and 5669 transitions. Word has length 1883 [2020-10-14 21:51:14,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 21:51:14,838 INFO L479 AbstractCegarLoop]: Abstraction has 5542 states and 5669 transitions. [2020-10-14 21:51:14,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 21:51:14,838 INFO L276 IsEmpty]: Start isEmpty. Operand 5542 states and 5669 transitions. [2020-10-14 21:51:14,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1889 [2020-10-14 21:51:14,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 21:51:14,861 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2020-10-14 21:51:14,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-14 21:51:14,861 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 21:51:14,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 21:51:14,862 INFO L82 PathProgramCache]: Analyzing trace with hash 979165661, now seen corresponding path program 1 times [2020-10-14 21:51:14,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 21:51:14,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [139295973] [2020-10-14 21:51:14,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 21:51:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 21:51:15,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 21:51:16,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking...