/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/Problem16_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:39:31,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:39:31,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:39:31,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:39:31,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:39:31,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:39:31,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:39:31,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:39:31,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:39:31,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:39:31,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:39:31,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:39:31,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:39:31,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:39:31,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:39:31,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:39:31,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:39:31,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:39:31,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:39:31,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:39:31,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:39:31,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:39:31,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:39:31,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:39:31,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:39:31,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:39:31,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:39:31,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:39:31,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:39:31,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:39:31,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:39:31,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:39:31,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:39:31,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:39:31,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:39:31,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:39:31,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:39:31,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:39:31,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:39:31,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:39:31,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:39:31,857 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 03:39:31,900 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:39:31,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:39:31,902 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:39:31,902 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:39:31,902 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:39:31,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:39:31,903 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:39:31,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:39:31,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:39:31,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:39:31,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:39:31,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:39:31,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:39:31,904 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:39:31,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:39:31,905 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:39:31,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:39:31,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:39:31,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:39:31,907 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:39:31,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:39:31,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:39:31,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:39:31,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:39:31,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:39:31,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:39:31,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:39:31,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:39:31,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:39:31,909 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 03:39:32,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:39:32,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:39:32,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:39:32,256 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:39:32,257 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:39:32,257 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label06.c [2020-10-14 03:39:32,320 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee4d5a9d0/38a3a5d48de14631b3985ccefede8909/FLAGec892d292 [2020-10-14 03:39:32,951 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:39:32,952 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label06.c [2020-10-14 03:39:32,977 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee4d5a9d0/38a3a5d48de14631b3985ccefede8909/FLAGec892d292 [2020-10-14 03:39:33,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee4d5a9d0/38a3a5d48de14631b3985ccefede8909 [2020-10-14 03:39:33,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:39:33,113 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:39:33,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:39:33,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:39:33,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:39:33,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:39:33" (1/1) ... [2020-10-14 03:39:33,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56d15d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:33, skipping insertion in model container [2020-10-14 03:39:33,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:39:33" (1/1) ... [2020-10-14 03:39:33,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:39:33,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:39:34,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:39:34,117 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:39:34,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:39:34,864 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:39:34,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:34 WrapperNode [2020-10-14 03:39:34,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:39:34,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:39:34,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:39:34,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:39:34,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:34" (1/1) ... [2020-10-14 03:39:34,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:34" (1/1) ... [2020-10-14 03:39:34,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:34" (1/1) ... [2020-10-14 03:39:34,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:34" (1/1) ... [2020-10-14 03:39:35,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:34" (1/1) ... [2020-10-14 03:39:35,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:34" (1/1) ... [2020-10-14 03:39:35,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:34" (1/1) ... [2020-10-14 03:39:35,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:39:35,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:39:35,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:39:35,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:39:35,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:34" (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 03:39:35,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:39:35,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:39:35,158 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:39:35,158 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:39:35,158 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:39:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:39:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:39:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:39:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:39:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:39:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:39:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:39:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:39:37,374 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:39:37,376 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:39:37,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:39:37 BoogieIcfgContainer [2020-10-14 03:39:37,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:39:37,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:39:37,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:39:37,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:39:37,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:39:33" (1/3) ... [2020-10-14 03:39:37,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6ce0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:39:37, skipping insertion in model container [2020-10-14 03:39:37,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:39:34" (2/3) ... [2020-10-14 03:39:37,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6ce0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:39:37, skipping insertion in model container [2020-10-14 03:39:37,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:39:37" (3/3) ... [2020-10-14 03:39:37,402 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label06.c [2020-10-14 03:39:37,413 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:39:37,425 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:39:37,440 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:39:37,471 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:39:37,471 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:39:37,471 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:39:37,471 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:39:37,471 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:39:37,471 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:39:37,472 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:39:37,472 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:39:37,509 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:39:37,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-14 03:39:37,517 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:39:37,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:39:37,518 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:39:37,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:39:37,525 INFO L82 PathProgramCache]: Analyzing trace with hash -968295835, now seen corresponding path program 1 times [2020-10-14 03:39:37,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:39:37,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66098093] [2020-10-14 03:39:37,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:39:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:37,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:37,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:37,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 03:39:37,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:37,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-10-14 03:39:37,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:37,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:37,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:39:37,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:39:37,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 03:39:37,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:39:38,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:39:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:38,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:38,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:38,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:39:38,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:38,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:39:38,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:38,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:38,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:39:38,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:38,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:39:38,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:39:38,073 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 03:39:38,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66098093] [2020-10-14 03:39:38,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:39:38,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:39:38,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134160204] [2020-10-14 03:39:38,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:39:38,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:39:38,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:39:38,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:39:38,105 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 03:39:41,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:39:41,876 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-14 03:39:41,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:39:41,878 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-14 03:39:41,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:39:41,916 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 03:39:41,916 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 03:39:41,934 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 03:39:41,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 03:39:42,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-14 03:39:42,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-14 03:39:42,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-14 03:39:42,039 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 16 [2020-10-14 03:39:42,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:39:42,039 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-14 03:39:42,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:39:42,040 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-14 03:39:42,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 03:39:42,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:39:42,045 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 03:39:42,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:39:42,045 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:39:42,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:39:42,046 INFO L82 PathProgramCache]: Analyzing trace with hash -89737064, now seen corresponding path program 1 times [2020-10-14 03:39:42,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:39:42,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913359325] [2020-10-14 03:39:42,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:39:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:42,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:42,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:43,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:43,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 03:39:43,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:39:43,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 920 [2020-10-14 03:39:43,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:43,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:43,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:43,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 03:39:43,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 03:39:43,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:39:43,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:39:43,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:43,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:43,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:43,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:39:43,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:43,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:39:43,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:43,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:43,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:39:43,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:43,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:39:43,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:43,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:39:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:43,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:43,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:43,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:39:43,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:43,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 03:39:43,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:43,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:43,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:39:43,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:43,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:39:43,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-14 03:39:43,301 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:39:43,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913359325] [2020-10-14 03:39:43,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:39:43,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:39:43,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297631092] [2020-10-14 03:39:43,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:39:43,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:39:43,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:39:43,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:39:43,307 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 5 states. [2020-10-14 03:39:46,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:39:46,608 INFO L93 Difference]: Finished difference Result 2063 states and 3056 transitions. [2020-10-14 03:39:46,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:39:46,608 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2020-10-14 03:39:46,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:39:46,617 INFO L225 Difference]: With dead ends: 2063 [2020-10-14 03:39:46,617 INFO L226 Difference]: Without dead ends: 1377 [2020-10-14 03:39:46,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 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 03:39:46,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2020-10-14 03:39:46,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1373. [2020-10-14 03:39:46,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1373 states. [2020-10-14 03:39:46,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 1805 transitions. [2020-10-14 03:39:46,675 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 1805 transitions. Word has length 92 [2020-10-14 03:39:46,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:39:46,676 INFO L479 AbstractCegarLoop]: Abstraction has 1373 states and 1805 transitions. [2020-10-14 03:39:46,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:39:46,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 1805 transitions. [2020-10-14 03:39:46,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-14 03:39:46,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:39:46,686 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 03:39:46,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:39:46,687 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:39:46,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:39:46,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1955822104, now seen corresponding path program 1 times [2020-10-14 03:39:46,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:39:46,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251932163] [2020-10-14 03:39:46,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:39:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:46,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:46,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:47,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:47,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:48,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:49,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:49,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-14 03:39:49,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:39:49,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2324 [2020-10-14 03:39:49,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:49,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:49,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:49,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 03:39:49,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:39:49,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:49,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:39:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:49,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:49,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:49,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:39:49,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:49,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:39:49,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:49,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:49,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:39:49,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:49,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:39:49,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:49,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:39:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:49,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:49,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:49,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:39:49,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:49,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 03:39:49,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:49,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:49,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:39:49,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:49,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:39:49,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:49,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:39:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:49,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:49,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:49,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:39:49,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:49,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:39:49,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:49,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:49,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:49,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:39:49,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 03:39:49,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:49,518 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:39:49,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251932163] [2020-10-14 03:39:49,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:39:49,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:39:49,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840806776] [2020-10-14 03:39:49,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:39:49,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:39:49,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:39:49,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:39:49,522 INFO L87 Difference]: Start difference. First operand 1373 states and 1805 transitions. Second operand 7 states. [2020-10-14 03:39:53,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:39:53,302 INFO L93 Difference]: Finished difference Result 3441 states and 4682 transitions. [2020-10-14 03:39:53,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:39:53,302 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 179 [2020-10-14 03:39:53,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:39:53,315 INFO L225 Difference]: With dead ends: 3441 [2020-10-14 03:39:53,315 INFO L226 Difference]: Without dead ends: 2074 [2020-10-14 03:39:53,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:39:53,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2074 states. [2020-10-14 03:39:53,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2074 to 2068. [2020-10-14 03:39:53,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2068 states. [2020-10-14 03:39:53,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2068 states to 2068 states and 2669 transitions. [2020-10-14 03:39:53,384 INFO L78 Accepts]: Start accepts. Automaton has 2068 states and 2669 transitions. Word has length 179 [2020-10-14 03:39:53,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:39:53,385 INFO L479 AbstractCegarLoop]: Abstraction has 2068 states and 2669 transitions. [2020-10-14 03:39:53,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:39:53,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2068 states and 2669 transitions. [2020-10-14 03:39:53,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-14 03:39:53,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:39:53,396 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:39:53,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:39:53,396 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:39:53,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:39:53,397 INFO L82 PathProgramCache]: Analyzing trace with hash 248251981, now seen corresponding path program 1 times [2020-10-14 03:39:53,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:39:53,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [270392331] [2020-10-14 03:39:53,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:39:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:53,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:53,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:54,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:54,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:55,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:55,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-14 03:39:55,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:39:55,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2332 [2020-10-14 03:39:55,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:55,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:55,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:55,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 03:39:55,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 03:39:55,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:39:55,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:39:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:55,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:55,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:55,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:39:55,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:55,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:39:55,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:55,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:55,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:39:55,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:39:55,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:55,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:39:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:55,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:55,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:55,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:39:55,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:55,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:39:55,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:55,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:55,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:39:55,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:39:55,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:39:55,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:55,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:39:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:39:56,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:39:56,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:39:56,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:39:56,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:39:56,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 03:39:56,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:39:56,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:39:56,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:39:56,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:39:56,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 03:39:56,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:39:56,294 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 106 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:39:56,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [270392331] [2020-10-14 03:39:56,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:39:56,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:39:56,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235706047] [2020-10-14 03:39:56,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:39:56,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:39:56,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:39:56,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:39:56,297 INFO L87 Difference]: Start difference. First operand 2068 states and 2669 transitions. Second operand 7 states. [2020-10-14 03:40:00,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:00,564 INFO L93 Difference]: Finished difference Result 5549 states and 7353 transitions. [2020-10-14 03:40:00,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:40:00,566 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2020-10-14 03:40:00,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:00,583 INFO L225 Difference]: With dead ends: 5549 [2020-10-14 03:40:00,584 INFO L226 Difference]: Without dead ends: 3131 [2020-10-14 03:40:00,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:40:00,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3131 states. [2020-10-14 03:40:00,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3131 to 3119. [2020-10-14 03:40:00,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3119 states. [2020-10-14 03:40:00,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 3409 transitions. [2020-10-14 03:40:00,668 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 3409 transitions. Word has length 242 [2020-10-14 03:40:00,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:00,669 INFO L479 AbstractCegarLoop]: Abstraction has 3119 states and 3409 transitions. [2020-10-14 03:40:00,669 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:40:00,669 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 3409 transitions. [2020-10-14 03:40:00,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-14 03:40:00,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:00,673 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:40:00,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:40:00,674 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:00,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:00,674 INFO L82 PathProgramCache]: Analyzing trace with hash 479539486, now seen corresponding path program 1 times [2020-10-14 03:40:00,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:00,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302959850] [2020-10-14 03:40:00,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:00,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:00,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:01,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:05,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:05,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-14 03:40:05,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:40:05,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4304 [2020-10-14 03:40:05,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:05,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:05,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:05,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:40:05,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 03:40:05,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:05,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:05,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:05,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:05,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:05,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:05,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:40:05,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:05,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:05,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:05,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:05,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:05,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:05,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:05,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:05,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:05,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:40:05,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:05,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 03:40:05,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:05,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:05,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:05,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:05,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:40:05,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:05,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:40:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:05,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:05,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:05,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:40:05,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:05,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 03:40:05,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:05,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:40:05,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:40:05,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:05,538 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:40:05,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302959850] [2020-10-14 03:40:05,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:05,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:40:05,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248410760] [2020-10-14 03:40:05,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:40:05,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:05,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:40:05,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:40:05,540 INFO L87 Difference]: Start difference. First operand 3119 states and 3409 transitions. Second operand 7 states. [2020-10-14 03:40:08,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:08,605 INFO L93 Difference]: Finished difference Result 7986 states and 8838 transitions. [2020-10-14 03:40:08,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:40:08,606 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 245 [2020-10-14 03:40:08,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:08,628 INFO L225 Difference]: With dead ends: 7986 [2020-10-14 03:40:08,628 INFO L226 Difference]: Without dead ends: 4531 [2020-10-14 03:40:08,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:40:08,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4531 states. [2020-10-14 03:40:08,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4531 to 4499. [2020-10-14 03:40:08,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4499 states. [2020-10-14 03:40:08,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4499 states to 4499 states and 4866 transitions. [2020-10-14 03:40:08,757 INFO L78 Accepts]: Start accepts. Automaton has 4499 states and 4866 transitions. Word has length 245 [2020-10-14 03:40:08,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:08,758 INFO L479 AbstractCegarLoop]: Abstraction has 4499 states and 4866 transitions. [2020-10-14 03:40:08,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:40:08,758 INFO L276 IsEmpty]: Start isEmpty. Operand 4499 states and 4866 transitions. [2020-10-14 03:40:08,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-10-14 03:40:08,764 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:08,765 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:40:08,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:40:08,765 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:08,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:08,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1211454093, now seen corresponding path program 1 times [2020-10-14 03:40:08,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:08,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [897116646] [2020-10-14 03:40:08,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:08,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:08,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:09,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:10,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:10,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:13,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:13,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 346 [2020-10-14 03:40:13,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:40:13,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 03:40:13,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:13,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:40:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 03:40:13,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:14,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:14,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:14,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:14,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:14,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:14,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:40:14,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:14,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:14,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:14,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:14,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:14,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:40:14,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:14,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:14,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:14,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:40:14,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:14,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-14 03:40:14,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:14,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:14,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:14,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:14,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:40:14,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:14,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:40:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:14,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:14,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:14,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:40:14,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:14,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-14 03:40:14,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:14,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:14,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:14,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:40:14,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 03:40:14,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:40:14,821 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 84 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:40:14,821 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [897116646] [2020-10-14 03:40:14,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:14,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:40:14,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802369114] [2020-10-14 03:40:14,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:40:14,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:14,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:40:14,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:40:14,824 INFO L87 Difference]: Start difference. First operand 4499 states and 4866 transitions. Second operand 7 states. [2020-10-14 03:40:18,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:18,013 INFO L93 Difference]: Finished difference Result 10370 states and 11189 transitions. [2020-10-14 03:40:18,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:40:18,015 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 334 [2020-10-14 03:40:18,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:18,036 INFO L225 Difference]: With dead ends: 10370 [2020-10-14 03:40:18,036 INFO L226 Difference]: Without dead ends: 5877 [2020-10-14 03:40:18,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:40:18,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5877 states. [2020-10-14 03:40:18,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5877 to 5521. [2020-10-14 03:40:18,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5521 states. [2020-10-14 03:40:18,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5521 states to 5521 states and 5937 transitions. [2020-10-14 03:40:18,166 INFO L78 Accepts]: Start accepts. Automaton has 5521 states and 5937 transitions. Word has length 334 [2020-10-14 03:40:18,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:18,167 INFO L479 AbstractCegarLoop]: Abstraction has 5521 states and 5937 transitions. [2020-10-14 03:40:18,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:40:18,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5521 states and 5937 transitions. [2020-10-14 03:40:18,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-10-14 03:40:18,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:18,174 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:40:18,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:40:18,175 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:18,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:18,175 INFO L82 PathProgramCache]: Analyzing trace with hash 996026672, now seen corresponding path program 1 times [2020-10-14 03:40:18,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:18,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624595156] [2020-10-14 03:40:18,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:18,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:18,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:18,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:19,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:21,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:23,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:23,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 347 [2020-10-14 03:40:23,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:40:23,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 03:40:23,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:23,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:23,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:23,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:40:23,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 03:40:23,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:23,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:23,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:23,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:23,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:23,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:23,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:40:23,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:23,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:23,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:23,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:23,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:23,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:23,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:23,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:23,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:23,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:40:23,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:23,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-10-14 03:40:23,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:23,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:23,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:23,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:23,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:40:23,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:23,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:40:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:23,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:23,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:23,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:40:23,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:23,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 03:40:23,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:23,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:23,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:40:23,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:40:23,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:24,051 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:40:24,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624595156] [2020-10-14 03:40:24,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:24,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:40:24,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191265995] [2020-10-14 03:40:24,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:40:24,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:24,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:40:24,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:40:24,055 INFO L87 Difference]: Start difference. First operand 5521 states and 5937 transitions. Second operand 7 states. [2020-10-14 03:40:28,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:28,647 INFO L93 Difference]: Finished difference Result 15619 states and 17477 transitions. [2020-10-14 03:40:28,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:40:28,649 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 335 [2020-10-14 03:40:28,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:28,706 INFO L225 Difference]: With dead ends: 15619 [2020-10-14 03:40:28,707 INFO L226 Difference]: Without dead ends: 10104 [2020-10-14 03:40:28,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:40:28,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10104 states. [2020-10-14 03:40:28,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10104 to 9305. [2020-10-14 03:40:28,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9305 states. [2020-10-14 03:40:28,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9305 states to 9305 states and 10117 transitions. [2020-10-14 03:40:28,970 INFO L78 Accepts]: Start accepts. Automaton has 9305 states and 10117 transitions. Word has length 335 [2020-10-14 03:40:28,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:28,971 INFO L479 AbstractCegarLoop]: Abstraction has 9305 states and 10117 transitions. [2020-10-14 03:40:28,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:40:28,971 INFO L276 IsEmpty]: Start isEmpty. Operand 9305 states and 10117 transitions. [2020-10-14 03:40:28,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2020-10-14 03:40:28,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:28,982 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:40:28,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:40:28,983 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:28,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:28,983 INFO L82 PathProgramCache]: Analyzing trace with hash -891284547, now seen corresponding path program 1 times [2020-10-14 03:40:28,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:28,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1737168671] [2020-10-14 03:40:28,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:29,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:29,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:29,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:30,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:30,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 430 [2020-10-14 03:40:30,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:40:30,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 993 [2020-10-14 03:40:30,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:30,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:30,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:30,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 03:40:30,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-14 03:40:30,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:30,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:30,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:30,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:30,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:30,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:30,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:40:30,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:30,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:30,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:30,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:30,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:30,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:30,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:30,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:30,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:30,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:40:30,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:30,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-14 03:40:30,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:30,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:30,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:30,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:30,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 03:40:30,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:30,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:40:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:30,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:30,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:30,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:40:30,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:30,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-14 03:40:30,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:30,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:30,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:30,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:40:30,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-14 03:40:30,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:40:30,938 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 178 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:40:30,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1737168671] [2020-10-14 03:40:30,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:30,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:40:30,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528706041] [2020-10-14 03:40:30,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:40:30,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:30,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:40:30,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:40:30,941 INFO L87 Difference]: Start difference. First operand 9305 states and 10117 transitions. Second operand 8 states. [2020-10-14 03:40:34,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:34,937 INFO L93 Difference]: Finished difference Result 23352 states and 25970 transitions. [2020-10-14 03:40:34,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:40:34,938 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 418 [2020-10-14 03:40:34,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:34,981 INFO L225 Difference]: With dead ends: 23352 [2020-10-14 03:40:34,981 INFO L226 Difference]: Without dead ends: 14741 [2020-10-14 03:40:34,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 03:40:35,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14741 states. [2020-10-14 03:40:35,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14741 to 14055. [2020-10-14 03:40:35,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14055 states. [2020-10-14 03:40:35,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14055 states to 14055 states and 15609 transitions. [2020-10-14 03:40:35,254 INFO L78 Accepts]: Start accepts. Automaton has 14055 states and 15609 transitions. Word has length 418 [2020-10-14 03:40:35,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:35,255 INFO L479 AbstractCegarLoop]: Abstraction has 14055 states and 15609 transitions. [2020-10-14 03:40:35,256 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:40:35,256 INFO L276 IsEmpty]: Start isEmpty. Operand 14055 states and 15609 transitions. [2020-10-14 03:40:35,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2020-10-14 03:40:35,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:35,268 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:40:35,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:40:35,269 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:35,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:35,269 INFO L82 PathProgramCache]: Analyzing trace with hash -240167099, now seen corresponding path program 1 times [2020-10-14 03:40:35,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:35,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [501025941] [2020-10-14 03:40:35,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:35,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:35,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:35,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:37,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:39,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:40,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:40,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 478 [2020-10-14 03:40:40,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:40:40,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 03:40:40,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:40,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:40,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:40,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:40:40,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 204 [2020-10-14 03:40:40,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:40,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:40,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:40,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:40,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:40,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:40,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:40:40,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:40,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:40,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:40,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:40,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:40,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:40,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:40,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:40,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:40,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:40:40,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:40,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-14 03:40:40,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:40,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:40,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:40,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:40,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:40:40,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:40,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:40:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:40,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:40,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:40,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:40:40,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:40,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-14 03:40:40,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:40,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:40,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:40,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:40:40,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-14 03:40:40,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:41,133 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 216 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:40:41,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [501025941] [2020-10-14 03:40:41,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:41,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:40:41,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857279141] [2020-10-14 03:40:41,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:40:41,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:41,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:40:41,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:40:41,136 INFO L87 Difference]: Start difference. First operand 14055 states and 15609 transitions. Second operand 7 states. [2020-10-14 03:40:44,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:44,890 INFO L93 Difference]: Finished difference Result 30461 states and 33874 transitions. [2020-10-14 03:40:44,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:40:44,891 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 466 [2020-10-14 03:40:44,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:44,948 INFO L225 Difference]: With dead ends: 30461 [2020-10-14 03:40:44,949 INFO L226 Difference]: Without dead ends: 16765 [2020-10-14 03:40:44,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:40:44,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16765 states. [2020-10-14 03:40:45,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16765 to 16757. [2020-10-14 03:40:45,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16757 states. [2020-10-14 03:40:45,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16757 states to 16757 states and 18520 transitions. [2020-10-14 03:40:45,279 INFO L78 Accepts]: Start accepts. Automaton has 16757 states and 18520 transitions. Word has length 466 [2020-10-14 03:40:45,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:45,281 INFO L479 AbstractCegarLoop]: Abstraction has 16757 states and 18520 transitions. [2020-10-14 03:40:45,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:40:45,281 INFO L276 IsEmpty]: Start isEmpty. Operand 16757 states and 18520 transitions. [2020-10-14 03:40:45,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2020-10-14 03:40:45,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:45,298 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 03:40:45,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:40:45,299 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:45,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:45,299 INFO L82 PathProgramCache]: Analyzing trace with hash 372730896, now seen corresponding path program 1 times [2020-10-14 03:40:45,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:45,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [556806772] [2020-10-14 03:40:45,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:45,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:45,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:46,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:47,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:48,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:50,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:50,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 484 [2020-10-14 03:40:50,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:40:50,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 03:40:50,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:50,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:50,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:50,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:40:50,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-14 03:40:50,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:50,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:50,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:50,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:50,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:50,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:50,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:40:50,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:50,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:50,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:50,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:50,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:50,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:50,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:50,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:40:50,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:50,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:40:50,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:50,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:50,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:50,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:50,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:40:50,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:50,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:40:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:50,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:50,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:50,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 03:40:50,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:50,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-14 03:40:50,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:50,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:50,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:50,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:40:50,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 03:40:50,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:50,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:40:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:50,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:50,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:50,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:40:50,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:50,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:40:50,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:50,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:50,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:50,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-14 03:40:50,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:50,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:51,050 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 128 proven. 134 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-14 03:40:51,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [556806772] [2020-10-14 03:40:51,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:40:51,051 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:40:51,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342788901] [2020-10-14 03:40:51,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:40:51,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:40:51,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:40:51,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:40:51,053 INFO L87 Difference]: Start difference. First operand 16757 states and 18520 transitions. Second operand 7 states. [2020-10-14 03:40:54,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:40:54,189 INFO L93 Difference]: Finished difference Result 35879 states and 39786 transitions. [2020-10-14 03:40:54,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:40:54,191 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 470 [2020-10-14 03:40:54,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:40:54,242 INFO L225 Difference]: With dead ends: 35879 [2020-10-14 03:40:54,242 INFO L226 Difference]: Without dead ends: 19474 [2020-10-14 03:40:54,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:40:54,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19474 states. [2020-10-14 03:40:54,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19474 to 18794. [2020-10-14 03:40:54,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18794 states. [2020-10-14 03:40:54,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18794 states to 18794 states and 20683 transitions. [2020-10-14 03:40:54,582 INFO L78 Accepts]: Start accepts. Automaton has 18794 states and 20683 transitions. Word has length 470 [2020-10-14 03:40:54,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:40:54,583 INFO L479 AbstractCegarLoop]: Abstraction has 18794 states and 20683 transitions. [2020-10-14 03:40:54,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:40:54,583 INFO L276 IsEmpty]: Start isEmpty. Operand 18794 states and 20683 transitions. [2020-10-14 03:40:54,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2020-10-14 03:40:54,595 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:40:54,596 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:40:54,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:40:54,597 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:40:54,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:40:54,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1452673849, now seen corresponding path program 1 times [2020-10-14 03:40:54,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:40:54,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779329735] [2020-10-14 03:40:54,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:40:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:54,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:54,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:54,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:59,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:59,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 632 [2020-10-14 03:40:59,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:40:59,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 03:40:59,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:59,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:40:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 03:40:59,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 03:40:59,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:59,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:40:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:59,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:59,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:59,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:40:59,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:59,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:40:59,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:59,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:59,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:40:59,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:59,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:40:59,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:40:59,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:40:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:40:59,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:40:59,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:40:59,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:40:59,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:40:59,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 03:40:59,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:40:59,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:40:59,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:40:59,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:40:59,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 03:40:59,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:00,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:41:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:00,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:00,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:00,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:41:00,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:00,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-14 03:41:00,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:00,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:41:00,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 03:41:00,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:00,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 03:41:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:00,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:00,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:00,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:41:00,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:00,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:41:00,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:00,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:00,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:00,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 03:41:00,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:00,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:00,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 03:41:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:00,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:00,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:00,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:41:00,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:00,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 03:41:00,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:00,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 03:41:00,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:00,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:00,860 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 203 proven. 195 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-10-14 03:41:00,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779329735] [2020-10-14 03:41:00,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:00,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:41:00,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34326294] [2020-10-14 03:41:00,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:41:00,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:00,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:41:00,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:41:00,864 INFO L87 Difference]: Start difference. First operand 18794 states and 20683 transitions. Second operand 7 states. [2020-10-14 03:41:04,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:41:04,437 INFO L93 Difference]: Finished difference Result 37911 states and 41794 transitions. [2020-10-14 03:41:04,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:41:04,438 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 616 [2020-10-14 03:41:04,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:41:04,484 INFO L225 Difference]: With dead ends: 37911 [2020-10-14 03:41:04,485 INFO L226 Difference]: Without dead ends: 19118 [2020-10-14 03:41:04,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:41:04,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19118 states. [2020-10-14 03:41:04,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19118 to 18777. [2020-10-14 03:41:04,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18777 states. [2020-10-14 03:41:04,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18777 states to 18777 states and 20637 transitions. [2020-10-14 03:41:04,949 INFO L78 Accepts]: Start accepts. Automaton has 18777 states and 20637 transitions. Word has length 616 [2020-10-14 03:41:04,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:41:04,950 INFO L479 AbstractCegarLoop]: Abstraction has 18777 states and 20637 transitions. [2020-10-14 03:41:04,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:41:04,950 INFO L276 IsEmpty]: Start isEmpty. Operand 18777 states and 20637 transitions. [2020-10-14 03:41:04,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2020-10-14 03:41:04,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:41:04,964 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:04,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:41:04,965 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:41:04,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:41:04,965 INFO L82 PathProgramCache]: Analyzing trace with hash 599349613, now seen corresponding path program 1 times [2020-10-14 03:41:04,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:41:04,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934748156] [2020-10-14 03:41:04,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:41:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:05,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:05,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:05,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:06,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:10,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:10,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 642 [2020-10-14 03:41:10,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:41:10,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 03:41:10,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:10,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:10,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:10,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:41:10,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 03:41:10,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:10,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:41:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:10,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:10,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:10,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:41:10,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:10,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:41:10,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:10,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:10,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:10,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:10,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:10,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:10,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:41:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:10,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:10,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:10,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:41:10,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:10,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 03:41:10,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:10,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:10,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:10,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:10,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:41:10,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:10,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:41:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:10,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:10,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:10,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:41:10,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:10,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 03:41:10,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:10,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:10,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:10,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:41:10,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 03:41:10,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:10,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2020-10-14 03:41:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:10,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:10,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:10,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:41:10,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:10,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:41:10,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:10,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:10,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:10,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 03:41:10,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:10,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:10,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2020-10-14 03:41:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:10,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:10,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:10,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:41:10,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:10,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:41:10,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:10,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:10,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:10,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 03:41:10,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:10,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:10,964 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 203 proven. 195 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-10-14 03:41:10,964 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934748156] [2020-10-14 03:41:10,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:10,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:41:10,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896986814] [2020-10-14 03:41:10,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:41:10,965 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:10,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:41:10,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:41:10,966 INFO L87 Difference]: Start difference. First operand 18777 states and 20637 transitions. Second operand 7 states. [2020-10-14 03:41:14,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:41:14,229 INFO L93 Difference]: Finished difference Result 40193 states and 45358 transitions. [2020-10-14 03:41:14,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:41:14,230 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 626 [2020-10-14 03:41:14,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:41:14,296 INFO L225 Difference]: With dead ends: 40193 [2020-10-14 03:41:14,297 INFO L226 Difference]: Without dead ends: 22100 [2020-10-14 03:41:14,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:41:14,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22100 states. [2020-10-14 03:41:14,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22100 to 21138. [2020-10-14 03:41:14,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21138 states. [2020-10-14 03:41:14,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21138 states to 21138 states and 23070 transitions. [2020-10-14 03:41:14,767 INFO L78 Accepts]: Start accepts. Automaton has 21138 states and 23070 transitions. Word has length 626 [2020-10-14 03:41:14,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:41:14,768 INFO L479 AbstractCegarLoop]: Abstraction has 21138 states and 23070 transitions. [2020-10-14 03:41:14,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:41:14,768 INFO L276 IsEmpty]: Start isEmpty. Operand 21138 states and 23070 transitions. [2020-10-14 03:41:14,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2020-10-14 03:41:14,784 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:41:14,785 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:14,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:41:14,785 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:41:14,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:41:14,786 INFO L82 PathProgramCache]: Analyzing trace with hash 544677274, now seen corresponding path program 1 times [2020-10-14 03:41:14,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:41:14,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570414354] [2020-10-14 03:41:14,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:41:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:14,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:15,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:17,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:17,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:19,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:19,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:19,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 776 [2020-10-14 03:41:19,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:41:19,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5111 [2020-10-14 03:41:19,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:19,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 537 [2020-10-14 03:41:19,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 224 [2020-10-14 03:41:19,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:20,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:41:20,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:20,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:20,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:20,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:41:20,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:20,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:41:20,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:20,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:20,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:20,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:20,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:20,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:20,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:41:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:20,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:20,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:20,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:41:20,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:20,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:41:20,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:20,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:20,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:20,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:20,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:20,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:20,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:41:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:20,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:20,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:20,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:41:20,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:20,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-14 03:41:20,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:20,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:20,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:20,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:20,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 03:41:20,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:20,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:41:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:20,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:20,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:20,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-14 03:41:20,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:20,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-14 03:41:20,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:20,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:20,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:20,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:41:20,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-14 03:41:20,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:21,627 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 468 proven. 2 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2020-10-14 03:41:21,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570414354] [2020-10-14 03:41:21,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:21,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:41:21,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25420268] [2020-10-14 03:41:21,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:41:21,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:21,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:41:21,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:41:21,630 INFO L87 Difference]: Start difference. First operand 21138 states and 23070 transitions. Second operand 7 states. [2020-10-14 03:41:27,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:41:27,025 INFO L93 Difference]: Finished difference Result 41600 states and 45460 transitions. [2020-10-14 03:41:27,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:41:27,026 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 762 [2020-10-14 03:41:27,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:41:27,084 INFO L225 Difference]: With dead ends: 41600 [2020-10-14 03:41:27,084 INFO L226 Difference]: Without dead ends: 21146 [2020-10-14 03:41:27,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:41:27,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21146 states. [2020-10-14 03:41:27,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21146 to 21138. [2020-10-14 03:41:27,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21138 states. [2020-10-14 03:41:27,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21138 states to 21138 states and 23062 transitions. [2020-10-14 03:41:27,479 INFO L78 Accepts]: Start accepts. Automaton has 21138 states and 23062 transitions. Word has length 762 [2020-10-14 03:41:27,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:41:27,479 INFO L479 AbstractCegarLoop]: Abstraction has 21138 states and 23062 transitions. [2020-10-14 03:41:27,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:41:27,480 INFO L276 IsEmpty]: Start isEmpty. Operand 21138 states and 23062 transitions. [2020-10-14 03:41:27,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 875 [2020-10-14 03:41:27,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:41:27,508 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:41:27,509 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:41:27,510 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:41:27,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:41:27,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1294126725, now seen corresponding path program 1 times [2020-10-14 03:41:27,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:41:27,513 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357654637] [2020-10-14 03:41:27,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:41:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:27,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:28,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:28,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:28,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:32,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:32,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 890 [2020-10-14 03:41:32,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:41:32,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-14 03:41:32,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:32,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:32,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 622 [2020-10-14 03:41:32,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:41:32,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:32,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:41:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:32,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:32,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:32,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:41:32,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:32,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:41:32,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:32,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:32,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:32,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:32,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:32,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:32,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:41:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:32,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:32,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:32,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:41:32,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:32,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:41:32,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:32,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:32,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:32,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:32,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:32,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:32,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:41:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:32,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:33,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:33,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:41:33,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:33,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:41:33,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:33,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:33,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:33,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:33,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:33,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:33,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:41:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:33,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:33,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:33,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:41:33,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:33,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:41:33,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:33,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:33,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:33,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:33,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 03:41:33,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:33,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:41:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:33,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:33,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:33,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:41:33,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:33,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-14 03:41:33,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:33,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:33,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:33,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:41:33,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:41:33,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:33,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 619 proven. 2 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2020-10-14 03:41:33,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357654637] [2020-10-14 03:41:33,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:33,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:41:33,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401187602] [2020-10-14 03:41:33,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:41:33,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:33,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:41:33,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:41:33,980 INFO L87 Difference]: Start difference. First operand 21138 states and 23062 transitions. Second operand 7 states. [2020-10-14 03:41:39,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:41:39,381 INFO L93 Difference]: Finished difference Result 43543 states and 48587 transitions. [2020-10-14 03:41:39,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:41:39,382 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 874 [2020-10-14 03:41:39,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:41:39,448 INFO L225 Difference]: With dead ends: 43543 [2020-10-14 03:41:39,448 INFO L226 Difference]: Without dead ends: 23089 [2020-10-14 03:41:39,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:41:39,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23089 states. [2020-10-14 03:41:39,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23089 to 21477. [2020-10-14 03:41:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21477 states. [2020-10-14 03:41:39,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21477 states to 21477 states and 23275 transitions. [2020-10-14 03:41:39,895 INFO L78 Accepts]: Start accepts. Automaton has 21477 states and 23275 transitions. Word has length 874 [2020-10-14 03:41:39,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:41:39,896 INFO L479 AbstractCegarLoop]: Abstraction has 21477 states and 23275 transitions. [2020-10-14 03:41:39,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:41:39,897 INFO L276 IsEmpty]: Start isEmpty. Operand 21477 states and 23275 transitions. [2020-10-14 03:41:39,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1034 [2020-10-14 03:41:39,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:41:39,941 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2020-10-14 03:41:39,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:41:39,941 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:41:39,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:41:39,942 INFO L82 PathProgramCache]: Analyzing trace with hash 18275917, now seen corresponding path program 1 times [2020-10-14 03:41:39,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:41:39,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076557081] [2020-10-14 03:41:39,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:41:40,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:40,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:40,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:43,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:43,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:44,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:45,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:45,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1051 [2020-10-14 03:41:45,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:41:45,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 03:41:45,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:45,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:45,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 03:41:45,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 622 [2020-10-14 03:41:45,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 428 [2020-10-14 03:41:45,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:45,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:41:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:45,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:45,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:45,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:41:45,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:45,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:41:45,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:45,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:45,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:45,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:45,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:45,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:45,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:41:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:45,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:45,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:45,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:41:45,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:45,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:41:45,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:45,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:45,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:45,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:45,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:45,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:45,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:41:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:45,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:45,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:45,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:41:45,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:45,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:41:45,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:45,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:45,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:45,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:45,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:45,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:45,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:41:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:45,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:45,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:45,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:41:45,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:45,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:41:45,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:45,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:45,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:45,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:45,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 03:41:45,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:45,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:41:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:45,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:45,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:45,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:45,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:41:45,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:41:45,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 03:41:45,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:45,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 03:41:45,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:45,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:41:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:45,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:45,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:46,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:46,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-14 03:41:46,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:41:46,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-14 03:41:46,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:46,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:46,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:46,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:46,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 03:41:46,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:46,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1632 backedges. 70 proven. 5 refuted. 0 times theorem prover too weak. 1557 trivial. 0 not checked. [2020-10-14 03:41:46,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076557081] [2020-10-14 03:41:46,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:46,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:41:46,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011929101] [2020-10-14 03:41:46,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:41:46,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:46,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:41:46,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:41:46,485 INFO L87 Difference]: Start difference. First operand 21477 states and 23275 transitions. Second operand 5 states. [2020-10-14 03:41:49,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:41:49,175 INFO L93 Difference]: Finished difference Result 42270 states and 45858 transitions. [2020-10-14 03:41:49,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:41:49,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1033 [2020-10-14 03:41:49,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:41:49,219 INFO L225 Difference]: With dead ends: 42270 [2020-10-14 03:41:49,219 INFO L226 Difference]: Without dead ends: 21477 [2020-10-14 03:41:49,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:41:49,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21477 states. [2020-10-14 03:41:49,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21477 to 21477. [2020-10-14 03:41:49,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21477 states. [2020-10-14 03:41:49,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21477 states to 21477 states and 22934 transitions. [2020-10-14 03:41:49,543 INFO L78 Accepts]: Start accepts. Automaton has 21477 states and 22934 transitions. Word has length 1033 [2020-10-14 03:41:49,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:41:49,544 INFO L479 AbstractCegarLoop]: Abstraction has 21477 states and 22934 transitions. [2020-10-14 03:41:49,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:41:49,545 INFO L276 IsEmpty]: Start isEmpty. Operand 21477 states and 22934 transitions. [2020-10-14 03:41:49,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1121 [2020-10-14 03:41:49,581 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:41:49,582 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:41:49,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:41:49,582 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:41:49,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:41:49,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1325941745, now seen corresponding path program 1 times [2020-10-14 03:41:49,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:41:49,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144969114] [2020-10-14 03:41:49,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:41:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:49,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:50,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:50,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:54,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:54,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1140 [2020-10-14 03:41:54,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:41:54,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 03:41:54,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:54,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:54,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:54,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 924 [2020-10-14 03:41:54,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 03:41:54,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:55,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:41:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:55,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:55,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:55,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:41:55,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:55,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:41:55,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:55,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:55,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:55,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:55,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:55,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:41:55,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:41:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:55,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:55,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:55,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:41:55,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:55,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 03:41:55,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:55,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:55,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:55,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:55,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:55,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:55,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:41:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:55,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:55,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:55,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:41:55,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:55,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 03:41:55,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:55,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:55,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:55,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:55,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:55,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:55,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:41:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:55,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:55,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:55,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:41:55,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:55,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:41:55,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:55,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:55,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:55,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:55,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:55,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:55,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:41:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:55,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:55,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:55,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:41:55,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:55,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:41:55,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:55,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:55,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:41:55,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:55,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:41:55,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:55,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:41:55,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:55,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:55,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:55,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:41:55,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:55,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:41:55,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:55,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:55,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:41:55,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:41:55,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:41:55,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:55,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:41:55,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:41:55,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:41:55,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:41:55,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 03:41:55,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:41:55,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-14 03:41:55,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:41:55,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:41:55,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:41:55,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:41:55,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-14 03:41:55,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:41:56,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2118 backedges. 836 proven. 2 refuted. 0 times theorem prover too weak. 1280 trivial. 0 not checked. [2020-10-14 03:41:56,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144969114] [2020-10-14 03:41:56,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:41:56,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:41:56,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118682327] [2020-10-14 03:41:56,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:41:56,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:41:56,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:41:56,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:41:56,473 INFO L87 Difference]: Start difference. First operand 21477 states and 22934 transitions. Second operand 7 states. [2020-10-14 03:42:00,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:00,432 INFO L93 Difference]: Finished difference Result 42972 states and 46077 transitions. [2020-10-14 03:42:00,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:42:00,433 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1120 [2020-10-14 03:42:00,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:00,475 INFO L225 Difference]: With dead ends: 42972 [2020-10-14 03:42:00,476 INFO L226 Difference]: Without dead ends: 19795 [2020-10-14 03:42:00,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:42:00,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19795 states. [2020-10-14 03:42:00,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19795 to 19424. [2020-10-14 03:42:00,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19424 states. [2020-10-14 03:42:00,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19424 states to 19424 states and 20590 transitions. [2020-10-14 03:42:00,749 INFO L78 Accepts]: Start accepts. Automaton has 19424 states and 20590 transitions. Word has length 1120 [2020-10-14 03:42:00,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:00,750 INFO L479 AbstractCegarLoop]: Abstraction has 19424 states and 20590 transitions. [2020-10-14 03:42:00,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:42:00,750 INFO L276 IsEmpty]: Start isEmpty. Operand 19424 states and 20590 transitions. [2020-10-14 03:42:00,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1210 [2020-10-14 03:42:00,786 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:00,790 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:42:00,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:42:00,791 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:00,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:00,791 INFO L82 PathProgramCache]: Analyzing trace with hash -593895099, now seen corresponding path program 1 times [2020-10-14 03:42:00,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:00,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498129032] [2020-10-14 03:42:00,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:01,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:01,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:01,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:07,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:07,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1231 [2020-10-14 03:42:07,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:42:07,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6187 [2020-10-14 03:42:07,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:07,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:07,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:07,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1141 [2020-10-14 03:42:07,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:42:07,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:07,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:07,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:07,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:07,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:07,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:07,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:42:07,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:07,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:07,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:07,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:07,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:07,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:07,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:07,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:07,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:07,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:42:07,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:07,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:42:07,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:07,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:07,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:07,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:07,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:07,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:07,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:42:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:07,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:07,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:07,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:42:07,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:07,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:42:07,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:07,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:07,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:07,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:07,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:07,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:07,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:42:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:07,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:07,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:07,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:42:07,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:07,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:42:07,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:07,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:07,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:07,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:07,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:07,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:07,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:42:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:07,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:07,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:07,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:42:07,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:07,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:42:07,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:07,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:07,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:07,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:07,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:07,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:07,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:42:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:07,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:07,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:07,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:42:07,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:07,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:42:07,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:07,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:07,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:07,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:07,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:07,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:07,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:42:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:07,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:07,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:07,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:42:07,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:07,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:42:07,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:07,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:07,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:07,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:07,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-14 03:42:07,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:07,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1129 [2020-10-14 03:42:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:07,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:07,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:07,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:42:07,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:07,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:42:07,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:07,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:42:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 03:42:07,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:08,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 502 proven. 2 refuted. 0 times theorem prover too weak. 2089 trivial. 0 not checked. [2020-10-14 03:42:08,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498129032] [2020-10-14 03:42:08,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:08,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:42:08,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875468646] [2020-10-14 03:42:08,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:42:08,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:08,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:42:08,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:42:08,510 INFO L87 Difference]: Start difference. First operand 19424 states and 20590 transitions. Second operand 7 states. [2020-10-14 03:42:13,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:13,171 INFO L93 Difference]: Finished difference Result 38043 states and 40983 transitions. [2020-10-14 03:42:13,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:42:13,172 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1209 [2020-10-14 03:42:13,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:13,207 INFO L225 Difference]: With dead ends: 38043 [2020-10-14 03:42:13,208 INFO L226 Difference]: Without dead ends: 19303 [2020-10-14 03:42:13,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:42:13,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19303 states. [2020-10-14 03:42:13,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19303 to 18752. [2020-10-14 03:42:13,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18752 states. [2020-10-14 03:42:13,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18752 states to 18752 states and 19628 transitions. [2020-10-14 03:42:13,489 INFO L78 Accepts]: Start accepts. Automaton has 18752 states and 19628 transitions. Word has length 1209 [2020-10-14 03:42:13,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:13,490 INFO L479 AbstractCegarLoop]: Abstraction has 18752 states and 19628 transitions. [2020-10-14 03:42:13,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:42:13,490 INFO L276 IsEmpty]: Start isEmpty. Operand 18752 states and 19628 transitions. [2020-10-14 03:42:13,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1287 [2020-10-14 03:42:13,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:13,522 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:13,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:42:13,522 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:13,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:13,523 INFO L82 PathProgramCache]: Analyzing trace with hash 2008575764, now seen corresponding path program 1 times [2020-10-14 03:42:13,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:13,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629043544] [2020-10-14 03:42:13,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:13,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:13,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:14,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:18,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:18,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1308 [2020-10-14 03:42:18,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:42:18,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-10-14 03:42:18,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:18,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1292 [2020-10-14 03:42:18,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 03:42:18,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:18,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:18,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:18,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:18,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:18,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:18,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:42:18,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:18,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:18,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:18,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:18,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:18,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:18,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:18,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:18,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:18,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:42:18,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:18,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:42:18,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:18,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:18,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:18,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:18,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:18,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:18,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:42:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:18,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:18,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:18,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:42:18,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:18,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:42:18,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:18,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:18,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:18,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:18,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:18,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:19,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:42:19,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:19,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:19,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:19,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:42:19,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:19,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:42:19,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:19,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:19,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:19,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:19,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:19,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:19,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:42:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:19,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:19,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:19,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:42:19,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:19,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:42:19,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:19,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:19,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:19,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:19,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:19,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:19,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:42:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:19,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:19,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:19,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:42:19,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:19,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:42:19,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:19,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:19,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:19,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:19,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:19,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:19,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:42:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:19,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:19,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:19,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:42:19,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:19,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:42:19,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:19,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:19,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:19,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:19,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1129 [2020-10-14 03:42:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:19,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:19,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:19,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:42:19,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:19,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:42:19,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:19,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:19,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:19,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:19,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-14 03:42:19,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:20,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2950 backedges. 74 proven. 7 refuted. 0 times theorem prover too weak. 2869 trivial. 0 not checked. [2020-10-14 03:42:20,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629043544] [2020-10-14 03:42:20,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:20,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:42:20,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857634216] [2020-10-14 03:42:20,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:42:20,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:20,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:42:20,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:42:20,014 INFO L87 Difference]: Start difference. First operand 18752 states and 19628 transitions. Second operand 5 states. [2020-10-14 03:42:22,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:22,989 INFO L93 Difference]: Finished difference Result 37490 states and 39272 transitions. [2020-10-14 03:42:22,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:42:22,993 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1286 [2020-10-14 03:42:22,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:23,030 INFO L225 Difference]: With dead ends: 37490 [2020-10-14 03:42:23,030 INFO L226 Difference]: Without dead ends: 19424 [2020-10-14 03:42:23,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:42:23,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19424 states. [2020-10-14 03:42:23,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19424 to 19085. [2020-10-14 03:42:23,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19085 states. [2020-10-14 03:42:23,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19085 states to 19085 states and 19868 transitions. [2020-10-14 03:42:23,304 INFO L78 Accepts]: Start accepts. Automaton has 19085 states and 19868 transitions. Word has length 1286 [2020-10-14 03:42:23,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:23,305 INFO L479 AbstractCegarLoop]: Abstraction has 19085 states and 19868 transitions. [2020-10-14 03:42:23,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:42:23,306 INFO L276 IsEmpty]: Start isEmpty. Operand 19085 states and 19868 transitions. [2020-10-14 03:42:23,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1308 [2020-10-14 03:42:23,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:23,341 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:42:23,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:42:23,342 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:23,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:23,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1487938079, now seen corresponding path program 1 times [2020-10-14 03:42:23,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:23,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2076608659] [2020-10-14 03:42:23,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:23,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:23,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:24,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:27,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:28,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:28,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1329 [2020-10-14 03:42:28,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:42:28,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5365 [2020-10-14 03:42:28,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:28,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:28,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:28,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 924 [2020-10-14 03:42:28,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:42:28,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:29,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:29,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:29,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:29,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:29,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:29,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:42:29,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:29,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:29,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:29,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:29,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:29,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:29,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:29,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:29,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:29,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:42:29,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:29,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:42:29,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:29,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:29,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:29,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:29,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:29,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:42:29,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:29,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:29,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:29,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:42:29,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:29,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:42:29,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:29,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:29,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:29,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:29,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:29,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:29,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:42:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:29,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:29,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:29,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:42:29,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:29,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:42:29,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:29,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:29,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:29,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:29,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:29,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:29,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:42:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:29,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:29,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:29,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:42:29,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:29,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 03:42:29,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:29,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:29,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:29,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:29,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:29,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:29,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:42:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:29,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:29,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:29,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:42:29,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:29,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:42:29,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:29,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:42:29,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:29,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:42:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:29,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:29,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:29,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:42:29,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:29,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-14 03:42:29,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:29,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:29,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:29,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:42:29,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 03:42:29,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:29,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1129 [2020-10-14 03:42:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:29,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:29,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:29,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-14 03:42:29,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:29,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:42:29,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:29,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-10-14 03:42:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:29,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:30,833 INFO L134 CoverageAnalysis]: Checked inductivity of 3034 backedges. 899 proven. 169 refuted. 0 times theorem prover too weak. 1966 trivial. 0 not checked. [2020-10-14 03:42:30,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2076608659] [2020-10-14 03:42:30,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:30,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:42:30,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191619979] [2020-10-14 03:42:30,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:42:30,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:30,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:42:30,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:42:30,835 INFO L87 Difference]: Start difference. First operand 19085 states and 19868 transitions. Second operand 7 states. [2020-10-14 03:42:34,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:34,614 INFO L93 Difference]: Finished difference Result 39177 states and 40895 transitions. [2020-10-14 03:42:34,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:42:34,615 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1307 [2020-10-14 03:42:34,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:34,650 INFO L225 Difference]: With dead ends: 39177 [2020-10-14 03:42:34,650 INFO L226 Difference]: Without dead ends: 21119 [2020-10-14 03:42:34,670 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:42:34,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21119 states. [2020-10-14 03:42:34,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21119 to 21117. [2020-10-14 03:42:34,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21117 states. [2020-10-14 03:42:34,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21117 states to 21117 states and 21955 transitions. [2020-10-14 03:42:34,873 INFO L78 Accepts]: Start accepts. Automaton has 21117 states and 21955 transitions. Word has length 1307 [2020-10-14 03:42:34,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:34,874 INFO L479 AbstractCegarLoop]: Abstraction has 21117 states and 21955 transitions. [2020-10-14 03:42:34,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:42:34,874 INFO L276 IsEmpty]: Start isEmpty. Operand 21117 states and 21955 transitions. [2020-10-14 03:42:34,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1617 [2020-10-14 03:42:34,901 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:34,902 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:34,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:42:34,902 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:34,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:34,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1118596145, now seen corresponding path program 1 times [2020-10-14 03:42:34,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:34,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901070796] [2020-10-14 03:42:34,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:35,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:35,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:40,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:40,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1642 [2020-10-14 03:42:40,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:42:40,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5156 [2020-10-14 03:42:40,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:40,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:40,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:40,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 938 [2020-10-14 03:42:40,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:42:40,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:40,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:40,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:40,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:40,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:40,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:40,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:42:40,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:40,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:40,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:40,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:40,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:40,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:40,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:40,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:40,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:40,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:42:40,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:40,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 03:42:40,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:40,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:40,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:40,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:40,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:40,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:40,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 03:42:40,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:40,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:40,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:40,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 158 [2020-10-14 03:42:40,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:40,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 03:42:40,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:40,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:40,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:40,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:40,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:40,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:40,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2020-10-14 03:42:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:40,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:40,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:40,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 03:42:40,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:40,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:42:40,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:40,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:40,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:40,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:40,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:40,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:40,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 631 [2020-10-14 03:42:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:40,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:40,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:40,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:42:40,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:40,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:42:40,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:40,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:40,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:40,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:40,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:40,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:41,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 03:42:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:41,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:41,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:41,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:42:41,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:41,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-14 03:42:41,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:41,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:41,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:41,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:41,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:42:41,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:41,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 928 [2020-10-14 03:42:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:41,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:41,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:41,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:42:41,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:41,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 514 [2020-10-14 03:42:41,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:41,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:41,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:41,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:42:41,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:42:41,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:42,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1201 [2020-10-14 03:42:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:42,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:42,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:42,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:42:42,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:42,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:42:42,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:42,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:42:42,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:42,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:42,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1313 [2020-10-14 03:42:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:42,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:42,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:42,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:42:42,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:42,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-14 03:42:42,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:42,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:42,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:42,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:42:42,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:42,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:42,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:42:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:42,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:42,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:42,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:42:42,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:42,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 03:42:42,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:42,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:42,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:42,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:42,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:42,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:44,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4537 backedges. 1037 proven. 381 refuted. 0 times theorem prover too weak. 3119 trivial. 0 not checked. [2020-10-14 03:42:44,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901070796] [2020-10-14 03:42:44,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:44,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:42:44,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130316350] [2020-10-14 03:42:44,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:42:44,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:44,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:42:44,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:42:44,631 INFO L87 Difference]: Start difference. First operand 21117 states and 21955 transitions. Second operand 8 states. [2020-10-14 03:42:49,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:42:49,197 INFO L93 Difference]: Finished difference Result 41546 states and 43214 transitions. [2020-10-14 03:42:49,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:42:49,198 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1616 [2020-10-14 03:42:49,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:42:49,240 INFO L225 Difference]: With dead ends: 41546 [2020-10-14 03:42:49,240 INFO L226 Difference]: Without dead ends: 21456 [2020-10-14 03:42:49,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-14 03:42:49,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21456 states. [2020-10-14 03:42:49,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21456 to 20780. [2020-10-14 03:42:49,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20780 states. [2020-10-14 03:42:49,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20780 states to 20780 states and 21598 transitions. [2020-10-14 03:42:49,485 INFO L78 Accepts]: Start accepts. Automaton has 20780 states and 21598 transitions. Word has length 1616 [2020-10-14 03:42:49,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:42:49,487 INFO L479 AbstractCegarLoop]: Abstraction has 20780 states and 21598 transitions. [2020-10-14 03:42:49,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:42:49,487 INFO L276 IsEmpty]: Start isEmpty. Operand 20780 states and 21598 transitions. [2020-10-14 03:42:49,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1874 [2020-10-14 03:42:49,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:42:49,530 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:42:49,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 03:42:49,531 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:42:49,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:42:49,531 INFO L82 PathProgramCache]: Analyzing trace with hash -191454824, now seen corresponding path program 1 times [2020-10-14 03:42:49,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:42:49,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056756651] [2020-10-14 03:42:49,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:42:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:49,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:50,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:54,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:54,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:54,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1905 [2020-10-14 03:42:54,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:42:54,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5116 [2020-10-14 03:42:54,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:54,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:54,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:54,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-14 03:42:54,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 03:42:54,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:55,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:42:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:55,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:55,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:55,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:42:55,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:55,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:42:55,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:55,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:55,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:55,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:55,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:55,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:55,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:42:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:55,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:55,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:55,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:42:55,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:55,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 03:42:55,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:55,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:55,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:55,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:55,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:55,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:55,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:42:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:55,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:55,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:55,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 03:42:55,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:55,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 03:42:55,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:55,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:55,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:42:55,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:55,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:42:55,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:55,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:42:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:55,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:55,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:55,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:42:55,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:55,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-14 03:42:55,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:55,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:55,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:42:55,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:42:55,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:42:55,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:55,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 03:42:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:55,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:55,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:55,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:42:55,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:55,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:42:55,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:55,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:55,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:55,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 03:42:55,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:55,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:55,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 03:42:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:55,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:55,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:55,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:42:55,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:55,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:42:55,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:55,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:42:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:55,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:56,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 03:42:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:56,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:56,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:56,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:42:56,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:56,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 03:42:56,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:56,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:56,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:56,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:42:56,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:56,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:56,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:42:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:56,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:56,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:56,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:42:56,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:56,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:42:56,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:56,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:56,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:56,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:56,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:56,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:56,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1111 [2020-10-14 03:42:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:56,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:56,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:56,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:42:56,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:56,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:42:56,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:56,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:56,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:56,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 03:42:56,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:56,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:42:56,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1185 [2020-10-14 03:42:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:56,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:56,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:56,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:42:56,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:56,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 03:42:56,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:56,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:56,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:56,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:42:56,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:56,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:56,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1458 [2020-10-14 03:42:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:56,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:56,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:56,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:42:56,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:56,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:42:56,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:56,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:42:56,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:56,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:56,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1570 [2020-10-14 03:42:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:56,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:56,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:56,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:42:56,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:56,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 03:42:56,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:56,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:56,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:56,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:42:56,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:56,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:56,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:42:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:42:56,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:42:56,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:42:56,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:42:56,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:42:56,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:42:56,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:42:56,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:42:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:42:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:42:56,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:42:56,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:42:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 5881 backedges. 403 proven. 739 refuted. 0 times theorem prover too weak. 4739 trivial. 0 not checked. [2020-10-14 03:42:58,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056756651] [2020-10-14 03:42:58,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:42:58,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:42:58,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881255298] [2020-10-14 03:42:58,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:42:58,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:42:58,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:42:58,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:42:58,330 INFO L87 Difference]: Start difference. First operand 20780 states and 21598 transitions. Second operand 7 states. [2020-10-14 03:43:01,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:01,826 INFO L93 Difference]: Finished difference Result 40535 states and 42162 transitions. [2020-10-14 03:43:01,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:43:01,828 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1873 [2020-10-14 03:43:01,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:01,857 INFO L225 Difference]: With dead ends: 40535 [2020-10-14 03:43:01,857 INFO L226 Difference]: Without dead ends: 20782 [2020-10-14 03:43:01,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:43:01,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20782 states. [2020-10-14 03:43:02,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20782 to 20780. [2020-10-14 03:43:02,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20780 states. [2020-10-14 03:43:02,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20780 states to 20780 states and 21581 transitions. [2020-10-14 03:43:02,068 INFO L78 Accepts]: Start accepts. Automaton has 20780 states and 21581 transitions. Word has length 1873 [2020-10-14 03:43:02,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:02,069 INFO L479 AbstractCegarLoop]: Abstraction has 20780 states and 21581 transitions. [2020-10-14 03:43:02,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:43:02,069 INFO L276 IsEmpty]: Start isEmpty. Operand 20780 states and 21581 transitions. [2020-10-14 03:43:02,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1876 [2020-10-14 03:43:02,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:02,110 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:02,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 03:43:02,111 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:02,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:02,112 INFO L82 PathProgramCache]: Analyzing trace with hash -354689988, now seen corresponding path program 1 times [2020-10-14 03:43:02,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:02,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148269594] [2020-10-14 03:43:02,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:02,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:02,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:03,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking...