/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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/Problem12_label35.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 02:50:00,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 02:50:00,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 02:50:00,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 02:50:00,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 02:50:00,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 02:50:00,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 02:50:00,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 02:50:00,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 02:50:00,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 02:50:00,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 02:50:00,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 02:50:00,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 02:50:00,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 02:50:00,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 02:50:00,109 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 02:50:00,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 02:50:00,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 02:50:00,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 02:50:00,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 02:50:00,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 02:50:00,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 02:50:00,118 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 02:50:00,119 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 02:50:00,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 02:50:00,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 02:50:00,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 02:50:00,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 02:50:00,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 02:50:00,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 02:50:00,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 02:50:00,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 02:50:00,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 02:50:00,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 02:50:00,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 02:50:00,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 02:50:00,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 02:50:00,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 02:50:00,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 02:50:00,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 02:50:00,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 02:50:00,133 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 02:50:00,157 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 02:50:00,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 02:50:00,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 02:50:00,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 02:50:00,159 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 02:50:00,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 02:50:00,159 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 02:50:00,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 02:50:00,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 02:50:00,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 02:50:00,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 02:50:00,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 02:50:00,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 02:50:00,161 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 02:50:00,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 02:50:00,161 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 02:50:00,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 02:50:00,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 02:50:00,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 02:50:00,162 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 02:50:00,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 02:50:00,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 02:50:00,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 02:50:00,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 02:50:00,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 02:50:00,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 02:50:00,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 02:50:00,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 02:50:00,164 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 02:50:00,164 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 02:50:00,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 02:50:00,568 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 02:50:00,572 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 02:50:00,574 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 02:50:00,574 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 02:50:00,575 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label35.c [2020-10-14 02:50:00,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/643048e26/6f55e0b9581d41209254b81029986cdd/FLAGebb5a80fd [2020-10-14 02:50:01,474 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 02:50:01,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem12_label35.c [2020-10-14 02:50:01,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/643048e26/6f55e0b9581d41209254b81029986cdd/FLAGebb5a80fd [2020-10-14 02:50:02,028 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/643048e26/6f55e0b9581d41209254b81029986cdd [2020-10-14 02:50:02,053 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 02:50:02,057 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 02:50:02,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 02:50:02,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 02:50:02,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 02:50:02,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:50:02" (1/1) ... [2020-10-14 02:50:02,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6708ede7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:50:02, skipping insertion in model container [2020-10-14 02:50:02,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:50:02" (1/1) ... [2020-10-14 02:50:02,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 02:50:02,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 02:50:03,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:50:03,905 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 02:50:04,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 02:50:04,770 INFO L208 MainTranslator]: Completed translation [2020-10-14 02:50:04,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:50:04 WrapperNode [2020-10-14 02:50:04,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 02:50:04,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 02:50:04,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 02:50:04,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 02:50:04,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:50:04" (1/1) ... [2020-10-14 02:50:04,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:50:04" (1/1) ... [2020-10-14 02:50:04,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:50:04" (1/1) ... [2020-10-14 02:50:04,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:50:04" (1/1) ... [2020-10-14 02:50:04,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:50:04" (1/1) ... [2020-10-14 02:50:05,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:50:04" (1/1) ... [2020-10-14 02:50:05,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:50:04" (1/1) ... [2020-10-14 02:50:05,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 02:50:05,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 02:50:05,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 02:50:05,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 02:50:05,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:50:04" (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 02:50:05,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 02:50:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 02:50:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 02:50:05,203 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 02:50:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 02:50:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2020-10-14 02:50:05,204 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 02:50:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 02:50:05,204 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 02:50:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 02:50:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2020-10-14 02:50:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 02:50:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 02:50:05,205 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 02:50:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 02:50:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 02:50:05,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 02:50:10,777 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 02:50:10,778 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 02:50:10,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:50:10 BoogieIcfgContainer [2020-10-14 02:50:10,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 02:50:10,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 02:50:10,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 02:50:10,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 02:50:10,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:50:02" (1/3) ... [2020-10-14 02:50:10,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179fb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:50:10, skipping insertion in model container [2020-10-14 02:50:10,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:50:04" (2/3) ... [2020-10-14 02:50:10,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179fb46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:50:10, skipping insertion in model container [2020-10-14 02:50:10,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:50:10" (3/3) ... [2020-10-14 02:50:10,802 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem12_label35.c [2020-10-14 02:50:10,817 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 02:50:10,828 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 02:50:10,848 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 02:50:10,887 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 02:50:10,887 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 02:50:10,887 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 02:50:10,887 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 02:50:10,888 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 02:50:10,888 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 02:50:10,888 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 02:50:10,888 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 02:50:10,930 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states. [2020-10-14 02:50:10,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-14 02:50:10,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:50:10,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 02:50:10,939 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:50:10,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:50:10,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1843947562, now seen corresponding path program 1 times [2020-10-14 02:50:10,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:50:10,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921133089] [2020-10-14 02:50:10,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:50:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:50:11,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:11,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:50:11,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 02:50:11,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:50:11,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-10-14 02:50:11,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:50:11,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:50:11,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 02:50:11,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:50:11,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 02:50:11,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 02:50:11,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:50:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:50:11,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:11,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:50:11,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:50:11,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:50:11,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 02:50:11,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:50:11,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:50:11,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:50:11,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:50:11,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:50:11,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:50:11,729 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 02:50:11,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1921133089] [2020-10-14 02:50:11,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 02:50:11,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 02:50:11,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473027398] [2020-10-14 02:50:11,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 02:50:11,743 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:50:11,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 02:50:11,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 02:50:11,764 INFO L87 Difference]: Start difference. First operand 839 states. Second operand 4 states. [2020-10-14 02:50:20,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:50:20,881 INFO L93 Difference]: Finished difference Result 2471 states and 4736 transitions. [2020-10-14 02:50:20,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:50:20,885 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-14 02:50:20,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:50:20,920 INFO L225 Difference]: With dead ends: 2471 [2020-10-14 02:50:20,920 INFO L226 Difference]: Without dead ends: 1568 [2020-10-14 02:50:20,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:50:20,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2020-10-14 02:50:21,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1553. [2020-10-14 02:50:21,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1553 states. [2020-10-14 02:50:21,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 2863 transitions. [2020-10-14 02:50:21,211 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 2863 transitions. Word has length 13 [2020-10-14 02:50:21,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:50:21,212 INFO L479 AbstractCegarLoop]: Abstraction has 1553 states and 2863 transitions. [2020-10-14 02:50:21,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 02:50:21,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 2863 transitions. [2020-10-14 02:50:21,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-14 02:50:21,219 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:50:21,220 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:21,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 02:50:21,223 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:50:21,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:50:21,223 INFO L82 PathProgramCache]: Analyzing trace with hash -890972585, now seen corresponding path program 1 times [2020-10-14 02:50:21,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:50:21,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268136639] [2020-10-14 02:50:21,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:50:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:50:21,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:21,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:22,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:22,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:50:22,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 02:50:22,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:50:22,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1394 [2020-10-14 02:50:22,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:50:22,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:50:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:50:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 02:50:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 02:50:22,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:50:22,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:50:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:50:22,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:22,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:50:22,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:50:22,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:50:22,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:50:22,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:50:22,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:50:22,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:50:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:50:22,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:50:22,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:50:22,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:50:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:50:22,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:22,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:50:22,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 02:50:22,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:50:22,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 02:50:22,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:50:22,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:50:22,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:50:22,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:50:22,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 02:50:22,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:50:22,942 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:50:22,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268136639] [2020-10-14 02:50:22,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:50:22,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 02:50:22,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807757323] [2020-10-14 02:50:22,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 02:50:22,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:50:22,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 02:50:22,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:50:22,948 INFO L87 Difference]: Start difference. First operand 1553 states and 2863 transitions. Second operand 6 states. [2020-10-14 02:50:32,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:50:32,675 INFO L93 Difference]: Finished difference Result 4671 states and 8675 transitions. [2020-10-14 02:50:32,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:50:32,677 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 82 [2020-10-14 02:50:32,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:50:32,695 INFO L225 Difference]: With dead ends: 4671 [2020-10-14 02:50:32,696 INFO L226 Difference]: Without dead ends: 3124 [2020-10-14 02:50:32,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:50:32,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3124 states. [2020-10-14 02:50:32,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3124 to 3109. [2020-10-14 02:50:32,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3109 states. [2020-10-14 02:50:32,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 5358 transitions. [2020-10-14 02:50:32,791 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 5358 transitions. Word has length 82 [2020-10-14 02:50:32,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:50:32,792 INFO L479 AbstractCegarLoop]: Abstraction has 3109 states and 5358 transitions. [2020-10-14 02:50:32,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 02:50:32,792 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 5358 transitions. [2020-10-14 02:50:32,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 02:50:32,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:50:32,796 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:32,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 02:50:32,797 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:50:32,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:50:32,797 INFO L82 PathProgramCache]: Analyzing trace with hash -194610813, now seen corresponding path program 1 times [2020-10-14 02:50:32,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:50:32,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497880922] [2020-10-14 02:50:32,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:50:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:50:32,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:32,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:50:32,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 02:50:32,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:50:32,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-14 02:50:32,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:50:32,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:50:32,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:50:32,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 02:50:32,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 02:50:32,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:50:33,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:50:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:50:33,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:33,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:50:33,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:50:33,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:50:33,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:50:33,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:50:33,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:50:33,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:50:33,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:50:33,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:50:33,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:50:33,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:50:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:50:33,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:33,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:50:33,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 02:50:33,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:50:33,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 02:50:33,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:50:33,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:50:33,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:50:33,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:50:33,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 02:50:33,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:50:33,249 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:50:33,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497880922] [2020-10-14 02:50:33,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:50:33,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 02:50:33,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103357429] [2020-10-14 02:50:33,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 02:50:33,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:50:33,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 02:50:33,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:50:33,254 INFO L87 Difference]: Start difference. First operand 3109 states and 5358 transitions. Second operand 6 states. [2020-10-14 02:50:49,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:50:49,935 INFO L93 Difference]: Finished difference Result 12444 states and 21979 transitions. [2020-10-14 02:50:49,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 02:50:49,937 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2020-10-14 02:50:49,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:50:49,998 INFO L225 Difference]: With dead ends: 12444 [2020-10-14 02:50:49,998 INFO L226 Difference]: Without dead ends: 9341 [2020-10-14 02:50:50,007 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 02:50:50,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9341 states. [2020-10-14 02:50:50,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9341 to 9321. [2020-10-14 02:50:50,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9321 states. [2020-10-14 02:50:50,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9321 states to 9321 states and 14050 transitions. [2020-10-14 02:50:50,376 INFO L78 Accepts]: Start accepts. Automaton has 9321 states and 14050 transitions. Word has length 88 [2020-10-14 02:50:50,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:50:50,379 INFO L479 AbstractCegarLoop]: Abstraction has 9321 states and 14050 transitions. [2020-10-14 02:50:50,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 02:50:50,384 INFO L276 IsEmpty]: Start isEmpty. Operand 9321 states and 14050 transitions. [2020-10-14 02:50:50,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-14 02:50:50,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:50:50,413 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:50,414 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 02:50:50,414 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:50:50,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:50:50,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1406012658, now seen corresponding path program 1 times [2020-10-14 02:50:50,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:50:50,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783511743] [2020-10-14 02:50:50,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:50:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:50:50,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:51,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:52,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:50:52,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-14 02:50:52,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:50:52,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1763 [2020-10-14 02:50:52,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:50:52,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:50:52,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:50:52,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-10-14 02:50:52,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 02:50:52,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:50:52,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:50:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:50:52,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:52,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:50:52,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:50:52,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:50:52,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:50:52,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:50:52,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:50:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:50:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:50:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:50:52,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:50:52,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:50:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:50:52,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:50:52,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:50:52,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 02:50:52,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:50:52,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-14 02:50:52,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:50:52,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:50:52,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:50:52,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:50:52,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 193 [2020-10-14 02:50:52,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:50:53,056 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:50:53,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783511743] [2020-10-14 02:50:53,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:50:53,059 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:50:53,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865059253] [2020-10-14 02:50:53,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:50:53,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:50:53,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:50:53,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:50:53,064 INFO L87 Difference]: Start difference. First operand 9321 states and 14050 transitions. Second operand 5 states. [2020-10-14 02:51:06,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:51:06,810 INFO L93 Difference]: Finished difference Result 27966 states and 43271 transitions. [2020-10-14 02:51:06,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:51:06,812 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 211 [2020-10-14 02:51:06,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:51:06,919 INFO L225 Difference]: With dead ends: 27966 [2020-10-14 02:51:06,919 INFO L226 Difference]: Without dead ends: 18651 [2020-10-14 02:51:06,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 02:51:06,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18651 states. [2020-10-14 02:51:07,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18651 to 15543. [2020-10-14 02:51:07,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15543 states. [2020-10-14 02:51:07,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15543 states to 15543 states and 22791 transitions. [2020-10-14 02:51:07,489 INFO L78 Accepts]: Start accepts. Automaton has 15543 states and 22791 transitions. Word has length 211 [2020-10-14 02:51:07,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:51:07,491 INFO L479 AbstractCegarLoop]: Abstraction has 15543 states and 22791 transitions. [2020-10-14 02:51:07,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:51:07,492 INFO L276 IsEmpty]: Start isEmpty. Operand 15543 states and 22791 transitions. [2020-10-14 02:51:07,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 645 [2020-10-14 02:51:07,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:51:07,550 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:07,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 02:51:07,550 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:51:07,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:51:07,551 INFO L82 PathProgramCache]: Analyzing trace with hash -197772529, now seen corresponding path program 1 times [2020-10-14 02:51:07,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:51:07,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471761208] [2020-10-14 02:51:07,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:51:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:51:07,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:51:09,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:51:12,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:51:12,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 658 [2020-10-14 02:51:12,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:51:12,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5127 [2020-10-14 02:51:12,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:51:12,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:51:12,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:51:12,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 639 [2020-10-14 02:51:12,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 02:51:12,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:51:13,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:51:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:51:13,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:51:13,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:51:13,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:51:13,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:51:13,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:51:13,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:51:13,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:51:13,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:51:13,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:51:13,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:51:13,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:51:13,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:51:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:51:13,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:51:14,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:51:14,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 636 [2020-10-14 02:51:14,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:51:14,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-10-14 02:51:14,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:51:14,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:51:14,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:51:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:51:14,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 624 [2020-10-14 02:51:14,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:51:14,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 02:51:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:51:14,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:51:14,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:51:14,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 348 [2020-10-14 02:51:14,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:51:14,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 518 [2020-10-14 02:51:14,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:51:14,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:51:14,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:51:14,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:51:14,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 339 [2020-10-14 02:51:14,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 02:51:14,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 02:51:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:51:15,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:51:15,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:51:15,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 02:51:15,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:51:15,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-14 02:51:15,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:51:15,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:51:15,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:51:15,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:51:15,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-14 02:51:15,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:51:16,699 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:51:16,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471761208] [2020-10-14 02:51:16,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:51:16,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 02:51:16,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005544087] [2020-10-14 02:51:16,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 02:51:16,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:51:16,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 02:51:16,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 02:51:16,704 INFO L87 Difference]: Start difference. First operand 15543 states and 22791 transitions. Second operand 5 states. [2020-10-14 02:51:30,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:51:30,391 INFO L93 Difference]: Finished difference Result 45817 states and 69118 transitions. [2020-10-14 02:51:30,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 02:51:30,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 644 [2020-10-14 02:51:30,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:51:30,525 INFO L225 Difference]: With dead ends: 45817 [2020-10-14 02:51:30,525 INFO L226 Difference]: Without dead ends: 30280 [2020-10-14 02:51:30,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 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 02:51:30,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30280 states. [2020-10-14 02:51:31,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30280 to 27935. [2020-10-14 02:51:31,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27935 states. [2020-10-14 02:51:31,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27935 states to 27935 states and 41605 transitions. [2020-10-14 02:51:32,636 INFO L78 Accepts]: Start accepts. Automaton has 27935 states and 41605 transitions. Word has length 644 [2020-10-14 02:51:32,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:51:32,637 INFO L479 AbstractCegarLoop]: Abstraction has 27935 states and 41605 transitions. [2020-10-14 02:51:32,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 02:51:32,638 INFO L276 IsEmpty]: Start isEmpty. Operand 27935 states and 41605 transitions. [2020-10-14 02:51:32,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2020-10-14 02:51:32,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:51:32,702 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:32,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 02:51:32,703 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:51:32,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:51:32,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1574548831, now seen corresponding path program 1 times [2020-10-14 02:51:32,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:51:32,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290080186] [2020-10-14 02:51:32,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:51:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:51:32,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:51:35,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:51:35,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 687 [2020-10-14 02:51:35,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:51:35,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2223 [2020-10-14 02:51:35,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:51:35,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:51:35,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 02:51:35,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:51:35,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 664 [2020-10-14 02:51:35,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:51:35,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:51:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:51:35,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:51:35,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:51:35,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:51:35,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:51:35,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:51:35,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:51:35,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:51:35,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:51:35,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:51:35,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:51:35,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:51:35,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:51:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:51:35,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:51:37,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:51:37,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 665 [2020-10-14 02:51:37,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:51:37,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1605 [2020-10-14 02:51:37,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:51:37,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:51:37,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 02:51:37,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:51:37,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 665 [2020-10-14 02:51:37,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:51:37,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 02:51:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:51:37,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:51:38,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:51:38,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 377 [2020-10-14 02:51:38,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:51:38,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 915 [2020-10-14 02:51:38,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:51:38,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:51:38,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 02:51:38,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:51:38,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 377 [2020-10-14 02:51:38,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:51:38,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 02:51:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:51:38,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:51:38,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:51:38,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 02:51:38,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:51:38,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-10-14 02:51:38,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:51:38,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:51:38,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 02:51:38,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:51:38,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-14 02:51:38,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:51:39,821 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 02:51:39,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290080186] [2020-10-14 02:51:39,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 02:51:39,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 02:51:39,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558281705] [2020-10-14 02:51:39,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 02:51:39,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:51:39,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 02:51:39,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-14 02:51:39,825 INFO L87 Difference]: Start difference. First operand 27935 states and 41605 transitions. Second operand 8 states. [2020-10-14 02:51:53,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:51:53,249 INFO L93 Difference]: Finished difference Result 67834 states and 104289 transitions. [2020-10-14 02:51:53,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:51:53,250 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 673 [2020-10-14 02:51:53,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:51:53,379 INFO L225 Difference]: With dead ends: 67834 [2020-10-14 02:51:53,379 INFO L226 Difference]: Without dead ends: 36755 [2020-10-14 02:51:53,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-10-14 02:51:53,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36755 states. [2020-10-14 02:51:54,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36755 to 35881. [2020-10-14 02:51:54,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35881 states. [2020-10-14 02:51:54,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35881 states to 35881 states and 49338 transitions. [2020-10-14 02:51:54,298 INFO L78 Accepts]: Start accepts. Automaton has 35881 states and 49338 transitions. Word has length 673 [2020-10-14 02:51:54,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:51:54,300 INFO L479 AbstractCegarLoop]: Abstraction has 35881 states and 49338 transitions. [2020-10-14 02:51:54,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 02:51:54,300 INFO L276 IsEmpty]: Start isEmpty. Operand 35881 states and 49338 transitions. [2020-10-14 02:51:54,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2020-10-14 02:51:54,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:51:54,374 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:54,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 02:51:54,375 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:51:54,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:51:54,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1353938359, now seen corresponding path program 1 times [2020-10-14 02:51:54,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:51:54,376 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120338959] [2020-10-14 02:51:54,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:51:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:51:54,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:51:55,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:51:59,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:51:59,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 767 [2020-10-14 02:51:59,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:51:59,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4573 [2020-10-14 02:51:59,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:51:59,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:51:59,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 02:51:59,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:51:59,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 02:51:59,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:51:59,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:51:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:51:59,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:51:59,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:51:59,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:51:59,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:51:59,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 02:51:59,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:51:59,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:51:59,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:51:59,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:51:59,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:51:59,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:51:59,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:51:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:51:59,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:51:59,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:51:59,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 02:51:59,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:51:59,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 02:51:59,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:51:59,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:51:59,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:51:59,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:51:59,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 02:51:59,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:51:59,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 02:51:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:51:59,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:51:59,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:51:59,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 665 [2020-10-14 02:51:59,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:51:59,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-14 02:51:59,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:51:59,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:51:59,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:51:59,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 662 [2020-10-14 02:51:59,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:51:59,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:52:00,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 02:52:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:52:00,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:00,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:52:00,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 377 [2020-10-14 02:52:00,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:52:00,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 02:52:00,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:52:00,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:52:00,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:52:00,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:52:00,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:52:00,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:52:00,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 02:52:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:52:00,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:00,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:52:00,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 02:52:00,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:52:00,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 02:52:00,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:52:00,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:52:00,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:52:00,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:52:00,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:52:00,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:52:00,861 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 12 proven. 73 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 02:52:00,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120338959] [2020-10-14 02:52:00,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:52:00,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:52:00,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118957387] [2020-10-14 02:52:00,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:52:00,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:52:00,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:52:00,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:52:00,864 INFO L87 Difference]: Start difference. First operand 35881 states and 49338 transitions. Second operand 7 states. [2020-10-14 02:52:12,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:52:12,695 INFO L93 Difference]: Finished difference Result 72193 states and 100634 transitions. [2020-10-14 02:52:12,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:52:12,697 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 751 [2020-10-14 02:52:12,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:52:12,809 INFO L225 Difference]: With dead ends: 72193 [2020-10-14 02:52:12,809 INFO L226 Difference]: Without dead ends: 36318 [2020-10-14 02:52:12,852 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:52:12,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36318 states. [2020-10-14 02:52:13,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36318 to 33887. [2020-10-14 02:52:13,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33887 states. [2020-10-14 02:52:13,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33887 states to 33887 states and 44362 transitions. [2020-10-14 02:52:13,527 INFO L78 Accepts]: Start accepts. Automaton has 33887 states and 44362 transitions. Word has length 751 [2020-10-14 02:52:13,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:52:13,528 INFO L479 AbstractCegarLoop]: Abstraction has 33887 states and 44362 transitions. [2020-10-14 02:52:13,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:52:13,528 INFO L276 IsEmpty]: Start isEmpty. Operand 33887 states and 44362 transitions. [2020-10-14 02:52:13,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 835 [2020-10-14 02:52:13,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:52:13,612 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:13,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 02:52:13,613 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:52:13,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:52:13,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1446453664, now seen corresponding path program 1 times [2020-10-14 02:52:13,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:52:13,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1287261144] [2020-10-14 02:52:13,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:52:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:52:13,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:14,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:16,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:18,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:52:18,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 852 [2020-10-14 02:52:18,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:52:18,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-14 02:52:18,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:52:18,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:52:18,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:52:18,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-14 02:52:18,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 02:52:18,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:52:18,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:52:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:52:18,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:18,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:52:18,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:52:18,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:52:18,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 02:52:18,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:52:18,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:52:18,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:52:18,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:52:18,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:52:18,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:52:18,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:52:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:52:18,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:18,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:52:18,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 02:52:18,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:52:18,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 02:52:18,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:52:18,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:52:18,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:52:18,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:52:18,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 02:52:18,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:52:18,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 02:52:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:52:18,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:19,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:52:19,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 02:52:19,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:52:19,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 02:52:19,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:52:19,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:52:19,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:52:19,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:52:19,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 02:52:19,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:52:19,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-14 02:52:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:52:19,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:19,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:52:19,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 665 [2020-10-14 02:52:19,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:52:19,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-10-14 02:52:19,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:52:19,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:52:19,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:52:19,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 662 [2020-10-14 02:52:19,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:52:19,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:52:19,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 02:52:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:52:19,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:19,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:52:19,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 377 [2020-10-14 02:52:19,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:52:19,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 02:52:19,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:52:19,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:52:19,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:52:19,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:52:19,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:52:19,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:52:19,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 02:52:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:52:19,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:19,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:52:19,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 02:52:19,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:52:19,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 02:52:19,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:52:19,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:52:19,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:52:19,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:52:19,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:52:19,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:52:21,413 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 97 proven. 77 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-14 02:52:21,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1287261144] [2020-10-14 02:52:21,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:52:21,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 02:52:21,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120773704] [2020-10-14 02:52:21,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 02:52:21,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:52:21,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 02:52:21,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 02:52:21,416 INFO L87 Difference]: Start difference. First operand 33887 states and 44362 transitions. Second operand 8 states. [2020-10-14 02:52:35,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:52:35,233 INFO L93 Difference]: Finished difference Result 82064 states and 109750 transitions. [2020-10-14 02:52:35,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 02:52:35,235 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 834 [2020-10-14 02:52:35,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:52:35,360 INFO L225 Difference]: With dead ends: 82064 [2020-10-14 02:52:35,360 INFO L226 Difference]: Without dead ends: 48183 [2020-10-14 02:52:35,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 02:52:35,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48183 states. [2020-10-14 02:52:36,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48183 to 46565. [2020-10-14 02:52:36,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46565 states. [2020-10-14 02:52:36,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46565 states to 46565 states and 62023 transitions. [2020-10-14 02:52:36,397 INFO L78 Accepts]: Start accepts. Automaton has 46565 states and 62023 transitions. Word has length 834 [2020-10-14 02:52:36,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:52:36,398 INFO L479 AbstractCegarLoop]: Abstraction has 46565 states and 62023 transitions. [2020-10-14 02:52:36,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 02:52:36,398 INFO L276 IsEmpty]: Start isEmpty. Operand 46565 states and 62023 transitions. [2020-10-14 02:52:36,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 855 [2020-10-14 02:52:36,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:52:36,453 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:36,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 02:52:36,453 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:52:36,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:52:36,454 INFO L82 PathProgramCache]: Analyzing trace with hash -122504120, now seen corresponding path program 1 times [2020-10-14 02:52:36,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:52:36,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290027634] [2020-10-14 02:52:36,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:52:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:52:36,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:36,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:39,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:41,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:52:41,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 872 [2020-10-14 02:52:41,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:52:41,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 02:52:41,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:52:41,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:52:41,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:52:41,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 02:52:41,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 02:52:41,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:52:41,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:52:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:52:41,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:41,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:52:41,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:52:41,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:52:41,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:52:41,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:52:41,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:52:41,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:52:41,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:52:41,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:52:41,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:52:41,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:52:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:52:41,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:41,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:52:41,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 02:52:41,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:52:41,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 02:52:41,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:52:41,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:52:41,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:52:41,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:52:41,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 02:52:41,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:52:41,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-14 02:52:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:52:41,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:41,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:52:41,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 02:52:41,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:52:41,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 02:52:41,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:52:41,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:52:41,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:52:41,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:52:41,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 02:52:41,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:52:41,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-10-14 02:52:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:52:42,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:42,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:52:42,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 665 [2020-10-14 02:52:42,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:52:42,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-14 02:52:42,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:52:42,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:52:42,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:52:42,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 662 [2020-10-14 02:52:42,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:52:42,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:52:42,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 02:52:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:52:42,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:42,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:52:42,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 377 [2020-10-14 02:52:42,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:52:42,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 02:52:42,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:52:42,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:52:42,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:52:42,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:52:42,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:52:42,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:52:42,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 02:52:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:52:42,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:52:42,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:52:42,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 02:52:42,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:52:42,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 02:52:42,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:52:42,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:52:42,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:52:42,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:52:42,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:52:42,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:52:43,183 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 97 proven. 77 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2020-10-14 02:52:43,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290027634] [2020-10-14 02:52:43,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:52:43,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:52:43,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677229440] [2020-10-14 02:52:43,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:52:43,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:52:43,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:52:43,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:52:43,186 INFO L87 Difference]: Start difference. First operand 46565 states and 62023 transitions. Second operand 7 states. [2020-10-14 02:53:00,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:53:00,070 INFO L93 Difference]: Finished difference Result 114541 states and 167373 transitions. [2020-10-14 02:53:00,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 02:53:00,072 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 854 [2020-10-14 02:53:00,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:53:00,410 INFO L225 Difference]: With dead ends: 114541 [2020-10-14 02:53:00,410 INFO L226 Difference]: Without dead ends: 67982 [2020-10-14 02:53:00,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:53:00,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67982 states. [2020-10-14 02:53:02,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67982 to 57245. [2020-10-14 02:53:02,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57245 states. [2020-10-14 02:53:02,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57245 states to 57245 states and 73937 transitions. [2020-10-14 02:53:02,137 INFO L78 Accepts]: Start accepts. Automaton has 57245 states and 73937 transitions. Word has length 854 [2020-10-14 02:53:02,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:53:02,138 INFO L479 AbstractCegarLoop]: Abstraction has 57245 states and 73937 transitions. [2020-10-14 02:53:02,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:53:02,138 INFO L276 IsEmpty]: Start isEmpty. Operand 57245 states and 73937 transitions. [2020-10-14 02:53:02,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 869 [2020-10-14 02:53:02,198 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:53:02,200 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:02,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 02:53:02,201 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:53:02,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:53:02,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1881669116, now seen corresponding path program 1 times [2020-10-14 02:53:02,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:53:02,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [158715817] [2020-10-14 02:53:02,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:53:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:53:02,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:02,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:04,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:07,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:53:07,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 886 [2020-10-14 02:53:07,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 02:53:07,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-14 02:53:07,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:53:07,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:53:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 02:53:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 02:53:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 203 [2020-10-14 02:53:07,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:53:07,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:53:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:53:07,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:07,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:53:07,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:53:07,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:53:07,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 02:53:07,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:53:07,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:53:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:53:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:53:07,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 02:53:07,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:53:07,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:53:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:53:07,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:07,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:07,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:53:07,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 02:53:07,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 02:53:07,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 02:53:07,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:53:07,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:53:07,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:53:07,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:53:07,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 02:53:07,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:53:07,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-14 02:53:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:53:07,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:07,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:53:07,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 02:53:07,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:53:07,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 02:53:07,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:53:07,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:53:07,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:53:07,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:53:07,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 02:53:07,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:53:07,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 02:53:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:53:07,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:09,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:53:09,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 665 [2020-10-14 02:53:09,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:53:09,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1582 [2020-10-14 02:53:09,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:53:09,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:53:09,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:53:09,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 662 [2020-10-14 02:53:09,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:53:09,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:53:09,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 02:53:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:53:09,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:09,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:53:09,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 377 [2020-10-14 02:53:09,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:53:09,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 02:53:09,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:53:09,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:53:09,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:53:09,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:53:09,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:53:09,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:53:09,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 02:53:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:53:09,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:09,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:53:09,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 02:53:09,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:53:09,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 02:53:09,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:53:09,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:53:09,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:53:09,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:53:09,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:53:09,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:53:10,251 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 23 proven. 185 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-14 02:53:10,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [158715817] [2020-10-14 02:53:10,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 02:53:10,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 02:53:10,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352804840] [2020-10-14 02:53:10,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 02:53:10,253 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 02:53:10,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 02:53:10,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 02:53:10,253 INFO L87 Difference]: Start difference. First operand 57245 states and 73937 transitions. Second operand 7 states. [2020-10-14 02:53:31,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 02:53:31,369 INFO L93 Difference]: Finished difference Result 135298 states and 178163 transitions. [2020-10-14 02:53:31,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 02:53:31,371 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 868 [2020-10-14 02:53:31,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 02:53:31,542 INFO L225 Difference]: With dead ends: 135298 [2020-10-14 02:53:31,542 INFO L226 Difference]: Without dead ends: 78839 [2020-10-14 02:53:31,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 02:53:31,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78839 states. [2020-10-14 02:53:32,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78839 to 76299. [2020-10-14 02:53:32,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76299 states. [2020-10-14 02:53:32,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76299 states to 76299 states and 96732 transitions. [2020-10-14 02:53:32,762 INFO L78 Accepts]: Start accepts. Automaton has 76299 states and 96732 transitions. Word has length 868 [2020-10-14 02:53:32,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 02:53:32,762 INFO L479 AbstractCegarLoop]: Abstraction has 76299 states and 96732 transitions. [2020-10-14 02:53:32,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 02:53:32,763 INFO L276 IsEmpty]: Start isEmpty. Operand 76299 states and 96732 transitions. [2020-10-14 02:53:32,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2020-10-14 02:53:32,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 02:53:32,853 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:32,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 02:53:32,853 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 02:53:32,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 02:53:32,854 INFO L82 PathProgramCache]: Analyzing trace with hash -476045940, now seen corresponding path program 1 times [2020-10-14 02:53:32,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 02:53:32,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137584199] [2020-10-14 02:53:32,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 02:53:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:53:33,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:33,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:33,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:36,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:37,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:38,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:53:38,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1022 [2020-10-14 02:53:38,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 02:53:38,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-14 02:53:38,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:53:38,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:53:38,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:53:38,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-14 02:53:38,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 186 [2020-10-14 02:53:38,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:53:38,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 02:53:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:53:38,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:38,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:53:38,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 02:53:38,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:53:38,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 02:53:38,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:53:38,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:53:38,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:53:38,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:53:38,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:53:38,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:53:38,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 02:53:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:53:38,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:38,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:53:38,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-14 02:53:38,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:53:38,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 02:53:38,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:53:38,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:53:38,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 02:53:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:53:38,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 02:53:38,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:53:38,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-14 02:53:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:53:38,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:38,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:53:38,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-14 02:53:38,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:53:38,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-10-14 02:53:38,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:53:38,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:53:38,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 02:53:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 02:53:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 184 [2020-10-14 02:53:38,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 02:53:39,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2020-10-14 02:53:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:53:39,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:39,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:53:39,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 665 [2020-10-14 02:53:39,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:53:39,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-14 02:53:39,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:53:39,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:53:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:53:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 662 [2020-10-14 02:53:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:53:39,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:53:39,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 02:53:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:53:39,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:39,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:53:39,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 377 [2020-10-14 02:53:39,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:53:39,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 02:53:39,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:53:39,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:53:39,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:53:39,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:53:39,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:53:39,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 02:53:39,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 02:53:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 02:53:39,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 02:53:39,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 02:53:39,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 02:53:39,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 02:53:39,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 02:53:39,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 02:53:39,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 02:53:39,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 02:53:39,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 02:53:39,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 02:53:39,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0