/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_label24.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:45:38,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:45:38,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:45:38,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:45:38,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:45:38,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:45:38,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:45:38,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:45:38,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:45:38,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:45:38,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:45:38,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:45:38,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:45:38,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:45:38,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:45:38,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:45:38,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:45:38,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:45:38,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:45:38,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:45:38,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:45:38,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:45:38,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:45:38,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:45:38,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:45:38,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:45:38,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:45:38,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:45:38,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:45:38,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:45:38,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:45:38,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:45:38,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:45:38,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:45:38,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:45:38,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:45:38,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:45:38,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:45:38,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:45:38,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:45:38,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:45:38,940 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 03:45:38,978 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:45:38,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:45:38,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:45:38,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:45:38,981 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:45:38,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:45:38,982 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:45:38,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:45:38,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:45:38,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:45:38,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:45:38,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:45:38,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:45:38,984 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:45:38,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:45:38,985 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:45:38,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:45:38,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:45:38,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:45:38,985 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:45:38,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:45:38,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:45:38,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:45:38,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:45:38,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:45:38,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:45:38,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:45:38,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:45:38,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:45:38,987 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 03:45:39,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:45:39,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:45:39,287 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:45:39,288 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:45:39,289 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:45:39,289 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label24.c [2020-10-14 03:45:39,349 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b367eef85/c5463d6af32d46848579fe16e5c099c0/FLAG250ac6329 [2020-10-14 03:45:39,907 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:45:39,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label24.c [2020-10-14 03:45:39,928 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b367eef85/c5463d6af32d46848579fe16e5c099c0/FLAG250ac6329 [2020-10-14 03:45:40,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b367eef85/c5463d6af32d46848579fe16e5c099c0 [2020-10-14 03:45:40,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:45:40,175 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:45:40,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:45:40,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:45:40,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:45:40,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:45:40" (1/1) ... [2020-10-14 03:45:40,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@91f500f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:40, skipping insertion in model container [2020-10-14 03:45:40,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:45:40" (1/1) ... [2020-10-14 03:45:40,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:45:40,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:45:41,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:45:41,410 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:45:41,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:45:41,683 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:45:41,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:41 WrapperNode [2020-10-14 03:45:41,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:45:41,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:45:41,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:45:41,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:45:41,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:41" (1/1) ... [2020-10-14 03:45:41,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:41" (1/1) ... [2020-10-14 03:45:41,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:41" (1/1) ... [2020-10-14 03:45:41,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:41" (1/1) ... [2020-10-14 03:45:41,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:41" (1/1) ... [2020-10-14 03:45:41,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:41" (1/1) ... [2020-10-14 03:45:41,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:41" (1/1) ... [2020-10-14 03:45:41,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:45:41,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:45:41,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:45:41,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:45:41,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:41" (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 03:45:42,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:45:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:45:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:45:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:45:42,004 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:45:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:45:42,005 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:45:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:45:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:45:42,006 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:45:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:45:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:45:42,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:45:44,655 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:45:44,655 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:45:44,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:45:44 BoogieIcfgContainer [2020-10-14 03:45:44,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:45:44,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:45:44,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:45:44,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:45:44,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:45:40" (1/3) ... [2020-10-14 03:45:44,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15891487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:45:44, skipping insertion in model container [2020-10-14 03:45:44,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:45:41" (2/3) ... [2020-10-14 03:45:44,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15891487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:45:44, skipping insertion in model container [2020-10-14 03:45:44,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:45:44" (3/3) ... [2020-10-14 03:45:44,684 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label24.c [2020-10-14 03:45:44,697 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:45:44,713 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:45:44,730 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:45:44,764 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:45:44,764 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:45:44,765 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:45:44,765 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:45:44,765 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:45:44,765 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:45:44,765 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:45:44,765 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:45:44,805 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:45:44,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-14 03:45:44,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:44,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:45:44,821 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:44,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:44,828 INFO L82 PathProgramCache]: Analyzing trace with hash 272014893, now seen corresponding path program 1 times [2020-10-14 03:45:44,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:44,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798753980] [2020-10-14 03:45:44,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:45,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:45,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:45,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 03:45:45,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:45,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 431 [2020-10-14 03:45:45,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:45,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:45:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:45:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 03:45:45,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:45:45,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:45,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:45,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:45,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:45,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:45,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:45,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:45:45,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:45,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:45,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:45,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:45,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:45:45,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:45,628 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 03:45:45,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798753980] [2020-10-14 03:45:45,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:45:45,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 03:45:45,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434332477] [2020-10-14 03:45:45,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:45:45,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:45,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:45:45,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:45:45,657 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 5 states. [2020-10-14 03:45:51,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:51,000 INFO L93 Difference]: Finished difference Result 1515 states and 2848 transitions. [2020-10-14 03:45:51,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:45:51,002 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-10-14 03:45:51,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:51,028 INFO L225 Difference]: With dead ends: 1515 [2020-10-14 03:45:51,028 INFO L226 Difference]: Without dead ends: 1038 [2020-10-14 03:45:51,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:51,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-14 03:45:51,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1031. [2020-10-14 03:45:51,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-10-14 03:45:51,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1642 transitions. [2020-10-14 03:45:51,169 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1642 transitions. Word has length 58 [2020-10-14 03:45:51,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:51,170 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1642 transitions. [2020-10-14 03:45:51,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:45:51,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1642 transitions. [2020-10-14 03:45:51,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-14 03:45:51,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:51,187 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:45:51,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:45:51,188 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:51,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:51,189 INFO L82 PathProgramCache]: Analyzing trace with hash 190582509, now seen corresponding path program 1 times [2020-10-14 03:45:51,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:51,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251453455] [2020-10-14 03:45:51,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:51,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:51,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:51,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:52,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:54,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:55,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:56,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:56,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-14 03:45:56,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:45:56,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 03:45:56,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:56,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 03:45:56,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:45:56,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:45:56,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:56,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:56,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:56,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:56,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:56,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:45:56,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:56,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:56,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:56,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:56,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:56,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:56,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:56,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 03:45:56,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:56,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 03:45:56,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:56,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:56,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:56,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:56,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 03:45:56,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:56,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 03:45:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:56,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:56,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:56,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:45:56,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:56,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-10-14 03:45:56,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:56,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:56,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:56,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:56,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 03:45:56,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:45:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:45:56,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [251453455] [2020-10-14 03:45:56,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:56,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:56,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613896287] [2020-10-14 03:45:56,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:56,903 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:56,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:56,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:56,903 INFO L87 Difference]: Start difference. First operand 1031 states and 1642 transitions. Second operand 7 states. [2020-10-14 03:46:00,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:00,931 INFO L93 Difference]: Finished difference Result 2769 states and 4527 transitions. [2020-10-14 03:46:00,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:46:00,932 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 240 [2020-10-14 03:46:00,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:00,948 INFO L225 Difference]: With dead ends: 2769 [2020-10-14 03:46:00,948 INFO L226 Difference]: Without dead ends: 1744 [2020-10-14 03:46:00,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 03:46:00,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2020-10-14 03:46:01,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1727. [2020-10-14 03:46:01,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1727 states. [2020-10-14 03:46:01,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2598 transitions. [2020-10-14 03:46:01,017 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2598 transitions. Word has length 240 [2020-10-14 03:46:01,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:01,018 INFO L479 AbstractCegarLoop]: Abstraction has 1727 states and 2598 transitions. [2020-10-14 03:46:01,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:01,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2598 transitions. [2020-10-14 03:46:01,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-10-14 03:46:01,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:01,031 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:01,032 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:46:01,032 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:01,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:01,032 INFO L82 PathProgramCache]: Analyzing trace with hash -868212803, now seen corresponding path program 1 times [2020-10-14 03:46:01,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:01,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1966064590] [2020-10-14 03:46:01,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:01,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:01,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:01,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:04,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:06,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:06,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-10-14 03:46:06,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:46:06,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4915 [2020-10-14 03:46:06,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:06,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:06,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:06,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 03:46:06,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:46:06,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:06,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:06,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:06,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:06,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:06,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:06,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:46:06,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:06,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:06,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:06,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:06,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:06,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:06,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:06,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:06,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:46:06,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:06,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-14 03:46:06,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:06,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:06,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:06,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:06,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:46:06,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:06,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 03:46:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:06,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:06,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:06,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:46:06,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:06,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-14 03:46:06,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:06,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:06,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:06,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:06,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 03:46:06,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:06,676 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 206 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:46:06,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1966064590] [2020-10-14 03:46:06,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:06,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:06,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011784031] [2020-10-14 03:46:06,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:06,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:06,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:06,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:06,679 INFO L87 Difference]: Start difference. First operand 1727 states and 2598 transitions. Second operand 7 states. [2020-10-14 03:46:10,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:10,859 INFO L93 Difference]: Finished difference Result 4187 states and 6332 transitions. [2020-10-14 03:46:10,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:46:10,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 280 [2020-10-14 03:46:10,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:10,873 INFO L225 Difference]: With dead ends: 4187 [2020-10-14 03:46:10,873 INFO L226 Difference]: Without dead ends: 2109 [2020-10-14 03:46:10,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:46:10,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2109 states. [2020-10-14 03:46:10,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2109 to 2077. [2020-10-14 03:46:10,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2077 states. [2020-10-14 03:46:10,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2402 transitions. [2020-10-14 03:46:10,938 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2402 transitions. Word has length 280 [2020-10-14 03:46:10,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:10,939 INFO L479 AbstractCegarLoop]: Abstraction has 2077 states and 2402 transitions. [2020-10-14 03:46:10,939 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:10,939 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2402 transitions. [2020-10-14 03:46:10,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-10-14 03:46:10,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:10,944 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:10,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:46:10,945 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:10,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:10,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1600135980, now seen corresponding path program 1 times [2020-10-14 03:46:10,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:10,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002828394] [2020-10-14 03:46:10,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:10,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:11,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:11,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:14,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:15,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:15,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 295 [2020-10-14 03:46:15,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:46:15,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4130 [2020-10-14 03:46:15,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:15,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:15,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:15,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 03:46:15,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:46:15,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:15,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:15,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:15,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:15,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:15,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:15,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:46:15,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:15,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:15,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:15,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:15,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:15,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:15,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:46:15,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:15,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 03:46:15,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:15,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:15,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:15,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:15,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:46:15,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:15,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 03:46:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:15,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:15,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:15,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:46:15,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:15,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-14 03:46:15,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:15,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:15,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:15,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:15,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:46:15,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:15,898 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 209 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:46:15,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002828394] [2020-10-14 03:46:15,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:15,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:15,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529365621] [2020-10-14 03:46:15,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:15,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:15,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:15,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:15,905 INFO L87 Difference]: Start difference. First operand 2077 states and 2402 transitions. Second operand 7 states. [2020-10-14 03:46:18,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:18,565 INFO L93 Difference]: Finished difference Result 5914 states and 6923 transitions. [2020-10-14 03:46:18,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:46:18,566 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 283 [2020-10-14 03:46:18,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:18,588 INFO L225 Difference]: With dead ends: 5914 [2020-10-14 03:46:18,588 INFO L226 Difference]: Without dead ends: 3843 [2020-10-14 03:46:18,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 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 03:46:18,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3843 states. [2020-10-14 03:46:18,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3843 to 3135. [2020-10-14 03:46:18,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3135 states. [2020-10-14 03:46:18,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 3612 transitions. [2020-10-14 03:46:18,701 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 3612 transitions. Word has length 283 [2020-10-14 03:46:18,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:18,705 INFO L479 AbstractCegarLoop]: Abstraction has 3135 states and 3612 transitions. [2020-10-14 03:46:18,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:18,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 3612 transitions. [2020-10-14 03:46:18,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2020-10-14 03:46:18,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:18,717 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:18,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:46:18,717 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:18,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:18,718 INFO L82 PathProgramCache]: Analyzing trace with hash 751337807, now seen corresponding path program 1 times [2020-10-14 03:46:18,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:18,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759829810] [2020-10-14 03:46:18,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:18,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:18,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:19,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:19,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:23,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:23,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 510 [2020-10-14 03:46:23,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:46:23,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 03:46:23,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:23,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 03:46:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:46:23,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:23,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:23,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:23,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:23,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:23,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:23,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:46:23,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:23,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:23,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:23,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:23,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:23,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:23,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:23,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:23,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:46:23,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:23,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 03:46:23,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:23,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:23,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:23,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:23,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:23,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:23,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 03:46:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:23,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:24,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:24,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:46:24,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:24,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 03:46:24,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:24,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:24,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:24,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:24,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:46:24,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:24,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-14 03:46:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:24,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:24,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:24,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:46:24,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:24,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-14 03:46:24,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:24,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:24,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:24,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:24,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-14 03:46:24,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:24,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-10-14 03:46:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:24,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:24,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:24,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:46:24,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:24,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:46:24,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:24,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:24,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:24,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:46:24,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:24,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:24,745 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 395 proven. 109 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2020-10-14 03:46:24,746 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759829810] [2020-10-14 03:46:24,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:24,746 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:46:24,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243238770] [2020-10-14 03:46:24,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:46:24,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:24,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:46:24,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:46:24,748 INFO L87 Difference]: Start difference. First operand 3135 states and 3612 transitions. Second operand 8 states. [2020-10-14 03:46:28,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:28,623 INFO L93 Difference]: Finished difference Result 9021 states and 10505 transitions. [2020-10-14 03:46:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:46:28,624 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 494 [2020-10-14 03:46:28,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:28,653 INFO L225 Difference]: With dead ends: 9021 [2020-10-14 03:46:28,654 INFO L226 Difference]: Without dead ends: 5892 [2020-10-14 03:46:28,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:46:28,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2020-10-14 03:46:28,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 4863. [2020-10-14 03:46:28,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4863 states. [2020-10-14 03:46:28,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4863 states to 4863 states and 5484 transitions. [2020-10-14 03:46:28,798 INFO L78 Accepts]: Start accepts. Automaton has 4863 states and 5484 transitions. Word has length 494 [2020-10-14 03:46:28,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:28,799 INFO L479 AbstractCegarLoop]: Abstraction has 4863 states and 5484 transitions. [2020-10-14 03:46:28,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:46:28,799 INFO L276 IsEmpty]: Start isEmpty. Operand 4863 states and 5484 transitions. [2020-10-14 03:46:28,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2020-10-14 03:46:28,815 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:28,816 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:46:28,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:46:28,816 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:28,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:28,817 INFO L82 PathProgramCache]: Analyzing trace with hash -764290875, now seen corresponding path program 1 times [2020-10-14 03:46:28,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:28,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442179914] [2020-10-14 03:46:28,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:28,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:28,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:29,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:29,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:33,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:33,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 529 [2020-10-14 03:46:33,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:46:33,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 03:46:33,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:33,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:33,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:33,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 03:46:33,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:46:33,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:33,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:34,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:34,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:34,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:34,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:34,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:46:34,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:34,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:34,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:34,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:34,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:34,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:34,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:34,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:34,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:34,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:46:34,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:34,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 03:46:34,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:34,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:34,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:34,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:34,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:34,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:34,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 03:46:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:34,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:34,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:34,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:46:34,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:34,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:46:34,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:34,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:34,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:34,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:34,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:46:34,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:34,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-14 03:46:34,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:34,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:34,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:34,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:46:34,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:34,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-14 03:46:34,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:34,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:34,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:34,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:34,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:46:34,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:35,067 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 336 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-14 03:46:35,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442179914] [2020-10-14 03:46:35,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:35,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:35,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399573499] [2020-10-14 03:46:35,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:35,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:35,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:35,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:35,072 INFO L87 Difference]: Start difference. First operand 4863 states and 5484 transitions. Second operand 7 states. [2020-10-14 03:46:37,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:37,892 INFO L93 Difference]: Finished difference Result 9738 states and 11000 transitions. [2020-10-14 03:46:37,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:46:37,893 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 515 [2020-10-14 03:46:37,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:37,915 INFO L225 Difference]: With dead ends: 9738 [2020-10-14 03:46:37,915 INFO L226 Difference]: Without dead ends: 4881 [2020-10-14 03:46:37,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:46:37,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4881 states. [2020-10-14 03:46:38,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4881 to 4865. [2020-10-14 03:46:38,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4865 states. [2020-10-14 03:46:38,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4865 states to 4865 states and 5487 transitions. [2020-10-14 03:46:38,055 INFO L78 Accepts]: Start accepts. Automaton has 4865 states and 5487 transitions. Word has length 515 [2020-10-14 03:46:38,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:38,056 INFO L479 AbstractCegarLoop]: Abstraction has 4865 states and 5487 transitions. [2020-10-14 03:46:38,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:38,056 INFO L276 IsEmpty]: Start isEmpty. Operand 4865 states and 5487 transitions. [2020-10-14 03:46:38,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2020-10-14 03:46:38,067 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:38,068 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:46:38,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:46:38,068 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:38,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:38,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1173317297, now seen corresponding path program 1 times [2020-10-14 03:46:38,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:38,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [49847384] [2020-10-14 03:46:38,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:38,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:38,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:39,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:39,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:43,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:43,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 538 [2020-10-14 03:46:43,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:46:43,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 03:46:43,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:43,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:43,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:43,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-10-14 03:46:43,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:46:43,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:43,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:43,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:43,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:43,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:43,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:43,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:46:43,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:43,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:43,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:43,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:43,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:43,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:43,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:43,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:43,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:43,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:46:43,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:43,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 03:46:43,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:43,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:46:43,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:43,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 03:46:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:43,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:43,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:43,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:46:43,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:43,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-14 03:46:43,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:43,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:43,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:43,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:43,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:46:43,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:44,970 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 294 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:46:44,971 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [49847384] [2020-10-14 03:46:44,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:44,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:44,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885420844] [2020-10-14 03:46:44,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:44,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:44,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:44,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:44,973 INFO L87 Difference]: Start difference. First operand 4865 states and 5487 transitions. Second operand 7 states. [2020-10-14 03:46:47,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:47,812 INFO L93 Difference]: Finished difference Result 9744 states and 11014 transitions. [2020-10-14 03:46:47,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:46:47,813 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 526 [2020-10-14 03:46:47,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:47,835 INFO L225 Difference]: With dead ends: 9744 [2020-10-14 03:46:47,835 INFO L226 Difference]: Without dead ends: 4885 [2020-10-14 03:46:47,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 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 03:46:47,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4885 states. [2020-10-14 03:46:47,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4885 to 4865. [2020-10-14 03:46:47,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4865 states. [2020-10-14 03:46:48,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4865 states to 4865 states and 5478 transitions. [2020-10-14 03:46:48,016 INFO L78 Accepts]: Start accepts. Automaton has 4865 states and 5478 transitions. Word has length 526 [2020-10-14 03:46:48,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:48,017 INFO L479 AbstractCegarLoop]: Abstraction has 4865 states and 5478 transitions. [2020-10-14 03:46:48,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:48,017 INFO L276 IsEmpty]: Start isEmpty. Operand 4865 states and 5478 transitions. [2020-10-14 03:46:48,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2020-10-14 03:46:48,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:48,028 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:46:48,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:46:48,028 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:48,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:48,029 INFO L82 PathProgramCache]: Analyzing trace with hash -2136618710, now seen corresponding path program 1 times [2020-10-14 03:46:48,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:48,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1671869583] [2020-10-14 03:46:48,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:48,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:48,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:48,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:50,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:52,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:52,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:53,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:53,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 558 [2020-10-14 03:46:53,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:46:53,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 03:46:53,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:53,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:53,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:53,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 225 [2020-10-14 03:46:53,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:46:53,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:53,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:53,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:53,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:53,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:53,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:53,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:46:53,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:53,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:53,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:53,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:53,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:53,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:53,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:53,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:53,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:53,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:53,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:46:53,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:53,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 03:46:53,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:53,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:53,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:53,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:53,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:53,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:53,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 03:46:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:53,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:53,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:53,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:46:53,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:53,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 03:46:53,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:53,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:53,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:46:53,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:53,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 03:46:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:53,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:53,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:53,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:46:53,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:53,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-14 03:46:53,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:53,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:53,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:53,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:53,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:46:53,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:54,161 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-14 03:46:54,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1671869583] [2020-10-14 03:46:54,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:54,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:54,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57337447] [2020-10-14 03:46:54,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:54,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:54,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:54,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:54,164 INFO L87 Difference]: Start difference. First operand 4865 states and 5478 transitions. Second operand 7 states. [2020-10-14 03:46:56,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:56,954 INFO L93 Difference]: Finished difference Result 9748 states and 11005 transitions. [2020-10-14 03:46:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:46:56,955 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 544 [2020-10-14 03:46:56,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:56,975 INFO L225 Difference]: With dead ends: 9748 [2020-10-14 03:46:56,975 INFO L226 Difference]: Without dead ends: 4889 [2020-10-14 03:46:56,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:46:56,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4889 states. [2020-10-14 03:46:57,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4889 to 4865. [2020-10-14 03:46:57,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4865 states. [2020-10-14 03:46:57,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4865 states to 4865 states and 5469 transitions. [2020-10-14 03:46:57,105 INFO L78 Accepts]: Start accepts. Automaton has 4865 states and 5469 transitions. Word has length 544 [2020-10-14 03:46:57,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:57,106 INFO L479 AbstractCegarLoop]: Abstraction has 4865 states and 5469 transitions. [2020-10-14 03:46:57,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:57,107 INFO L276 IsEmpty]: Start isEmpty. Operand 4865 states and 5469 transitions. [2020-10-14 03:46:57,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2020-10-14 03:46:57,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:57,120 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:46:57,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:46:57,121 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:57,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:57,121 INFO L82 PathProgramCache]: Analyzing trace with hash -368104869, now seen corresponding path program 1 times [2020-10-14 03:46:57,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:57,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863685971] [2020-10-14 03:46:57,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:57,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:57,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:57,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:58,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:59,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:59,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:00,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:00,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:02,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:02,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 702 [2020-10-14 03:47:02,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 03:47:02,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-14 03:47:02,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:02,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:02,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:02,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 369 [2020-10-14 03:47:02,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:47:02,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:02,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:02,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:02,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:02,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:02,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:02,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:02,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:02,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:02,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:02,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:02,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:02,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:02,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:02,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:02,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:02,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:47:02,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:02,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:47:02,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:02,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:02,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:02,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:02,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:02,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:02,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 03:47:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:02,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:02,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:02,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:47:02,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:02,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:47:02,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:02,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:02,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:02,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:02,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:02,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:02,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 03:47:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:02,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:02,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:02,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:47:02,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:02,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:47:02,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:02,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:02,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:02,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:02,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 03:47:02,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:02,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-10-14 03:47:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:02,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:02,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:02,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:47:02,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:02,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-14 03:47:02,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:02,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:02,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:02,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:02,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:47:02,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:03,773 INFO L134 CoverageAnalysis]: Checked inductivity of 839 backedges. 560 proven. 2 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2020-10-14 03:47:03,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863685971] [2020-10-14 03:47:03,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:03,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:03,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253867226] [2020-10-14 03:47:03,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:03,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:03,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:03,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:03,776 INFO L87 Difference]: Start difference. First operand 4865 states and 5469 transitions. Second operand 7 states. [2020-10-14 03:47:06,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:06,938 INFO L93 Difference]: Finished difference Result 10841 states and 12575 transitions. [2020-10-14 03:47:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:06,942 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 686 [2020-10-14 03:47:06,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:06,962 INFO L225 Difference]: With dead ends: 10841 [2020-10-14 03:47:06,962 INFO L226 Difference]: Without dead ends: 5982 [2020-10-14 03:47:06,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 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 03:47:06,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5982 states. [2020-10-14 03:47:07,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5982 to 5902. [2020-10-14 03:47:07,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5902 states. [2020-10-14 03:47:07,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5902 states to 5902 states and 6589 transitions. [2020-10-14 03:47:07,093 INFO L78 Accepts]: Start accepts. Automaton has 5902 states and 6589 transitions. Word has length 686 [2020-10-14 03:47:07,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:07,094 INFO L479 AbstractCegarLoop]: Abstraction has 5902 states and 6589 transitions. [2020-10-14 03:47:07,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:07,094 INFO L276 IsEmpty]: Start isEmpty. Operand 5902 states and 6589 transitions. [2020-10-14 03:47:07,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2020-10-14 03:47:07,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:07,109 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:47:07,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:47:07,110 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:07,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:07,110 INFO L82 PathProgramCache]: Analyzing trace with hash 528474749, now seen corresponding path program 1 times [2020-10-14 03:47:07,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:07,111 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624692984] [2020-10-14 03:47:07,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:07,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:07,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:07,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:11,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:12,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:12,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 720 [2020-10-14 03:47:12,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:47:12,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-10-14 03:47:12,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:12,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-10-14 03:47:12,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-14 03:47:12,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:12,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:12,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:12,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:12,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:12,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:12,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:12,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:47:12,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:12,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:12,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:12,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:12,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:12,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:12,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:12,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:12,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:12,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:47:12,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:12,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 03:47:12,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:12,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:12,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:12,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:12,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:12,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 03:47:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:12,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:12,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:12,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:47:12,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:12,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 03:47:12,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:12,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:12,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:12,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:12,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:47:12,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:12,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-14 03:47:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:12,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:12,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:12,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:47:12,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:12,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 03:47:12,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:12,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:12,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:12,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:12,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-14 03:47:12,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:12,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2020-10-14 03:47:12,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:12,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:12,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:12,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:47:12,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:12,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 03:47:12,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:12,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:12,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:12,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:47:12,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:12,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:13,160 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 396 proven. 187 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2020-10-14 03:47:13,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624692984] [2020-10-14 03:47:13,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:13,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:13,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569043864] [2020-10-14 03:47:13,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:13,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:13,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:13,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:13,163 INFO L87 Difference]: Start difference. First operand 5902 states and 6589 transitions. Second operand 7 states. [2020-10-14 03:47:16,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:16,588 INFO L93 Difference]: Finished difference Result 15323 states and 17734 transitions. [2020-10-14 03:47:16,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:16,589 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 704 [2020-10-14 03:47:16,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:16,622 INFO L225 Difference]: With dead ends: 15323 [2020-10-14 03:47:16,623 INFO L226 Difference]: Without dead ends: 9427 [2020-10-14 03:47:16,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:47:16,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9427 states. [2020-10-14 03:47:16,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9427 to 8960. [2020-10-14 03:47:16,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8960 states. [2020-10-14 03:47:16,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8960 states to 8960 states and 9932 transitions. [2020-10-14 03:47:16,863 INFO L78 Accepts]: Start accepts. Automaton has 8960 states and 9932 transitions. Word has length 704 [2020-10-14 03:47:16,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:16,864 INFO L479 AbstractCegarLoop]: Abstraction has 8960 states and 9932 transitions. [2020-10-14 03:47:16,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:16,864 INFO L276 IsEmpty]: Start isEmpty. Operand 8960 states and 9932 transitions. [2020-10-14 03:47:16,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2020-10-14 03:47:16,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:16,886 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:47:16,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:47:16,886 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:16,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:16,887 INFO L82 PathProgramCache]: Analyzing trace with hash -418726183, now seen corresponding path program 1 times [2020-10-14 03:47:16,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:16,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1895316263] [2020-10-14 03:47:16,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:16,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:17,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:17,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:18,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:22,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:22,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 782 [2020-10-14 03:47:22,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:47:22,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-14 03:47:22,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:22,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:22,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:22,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-10-14 03:47:22,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:47:22,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:22,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:22,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:22,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:22,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:22,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:22,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:22,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:22,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:22,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:22,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:22,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:22,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:22,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:22,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:22,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:22,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:47:22,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:22,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:47:22,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:22,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:22,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:22,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:22,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:22,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:22,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 03:47:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:22,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:22,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:22,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:47:22,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:22,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:47:22,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:22,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:22,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:22,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:22,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:47:22,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:22,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-14 03:47:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:22,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:22,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:22,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:47:22,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:22,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-14 03:47:22,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:22,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:22,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:22,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:22,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:47:22,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:22,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2020-10-14 03:47:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:22,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:22,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:22,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:47:22,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:22,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 03:47:22,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:22,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:22,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:22,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:47:22,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:22,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:23,269 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 396 proven. 249 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2020-10-14 03:47:23,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1895316263] [2020-10-14 03:47:23,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:23,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:23,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047848340] [2020-10-14 03:47:23,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:23,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:23,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:23,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:23,271 INFO L87 Difference]: Start difference. First operand 8960 states and 9932 transitions. Second operand 7 states. [2020-10-14 03:47:26,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:26,248 INFO L93 Difference]: Finished difference Result 18044 states and 20538 transitions. [2020-10-14 03:47:26,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:47:26,249 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 766 [2020-10-14 03:47:26,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:26,282 INFO L225 Difference]: With dead ends: 18044 [2020-10-14 03:47:26,282 INFO L226 Difference]: Without dead ends: 9090 [2020-10-14 03:47:26,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 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 03:47:26,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9090 states. [2020-10-14 03:47:26,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9090 to 8968. [2020-10-14 03:47:26,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8968 states. [2020-10-14 03:47:26,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8968 states to 8968 states and 9979 transitions. [2020-10-14 03:47:26,500 INFO L78 Accepts]: Start accepts. Automaton has 8968 states and 9979 transitions. Word has length 766 [2020-10-14 03:47:26,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:26,501 INFO L479 AbstractCegarLoop]: Abstraction has 8968 states and 9979 transitions. [2020-10-14 03:47:26,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:26,501 INFO L276 IsEmpty]: Start isEmpty. Operand 8968 states and 9979 transitions. [2020-10-14 03:47:26,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2020-10-14 03:47:26,522 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:26,523 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 03:47:26,523 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:47:26,523 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:26,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:26,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1631017439, now seen corresponding path program 1 times [2020-10-14 03:47:26,524 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:26,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483881661] [2020-10-14 03:47:26,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:26,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:26,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:26,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:31,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:31,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 815 [2020-10-14 03:47:31,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:47:31,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-14 03:47:31,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:31,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:31,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 03:47:31,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:47:31,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:31,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:31,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:31,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:31,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:31,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:31,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:31,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:31,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:31,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:31,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:31,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:31,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:31,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:31,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:31,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:31,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:47:31,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:31,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:47:31,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:31,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:31,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:31,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:31,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:47:31,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:31,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 03:47:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:31,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:31,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:31,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:47:31,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:31,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 03:47:31,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:31,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:31,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:31,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:31,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:47:31,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:31,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-14 03:47:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:31,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:31,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:31,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:47:31,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:31,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:47:31,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:31,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:31,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:31,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:47:31,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:31,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:31,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2020-10-14 03:47:32,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:32,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:32,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:32,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:32,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:32,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:47:32,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:32,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:32,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:32,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:32,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:32,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:32,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2020-10-14 03:47:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:32,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:32,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:32,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:47:32,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:32,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 03:47:32,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:32,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:32,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:32,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:47:32,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:32,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1293 backedges. 334 proven. 389 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2020-10-14 03:47:32,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483881661] [2020-10-14 03:47:32,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:32,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:32,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732722319] [2020-10-14 03:47:32,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:32,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:32,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:32,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:32,595 INFO L87 Difference]: Start difference. First operand 8968 states and 9979 transitions. Second operand 7 states. [2020-10-14 03:47:35,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:35,741 INFO L93 Difference]: Finished difference Result 19785 states and 22688 transitions. [2020-10-14 03:47:35,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:35,742 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 797 [2020-10-14 03:47:35,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:35,775 INFO L225 Difference]: With dead ends: 19785 [2020-10-14 03:47:35,775 INFO L226 Difference]: Without dead ends: 10823 [2020-10-14 03:47:35,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 03:47:35,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10823 states. [2020-10-14 03:47:35,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10823 to 9993. [2020-10-14 03:47:35,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9993 states. [2020-10-14 03:47:36,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9993 states to 9993 states and 11079 transitions. [2020-10-14 03:47:36,021 INFO L78 Accepts]: Start accepts. Automaton has 9993 states and 11079 transitions. Word has length 797 [2020-10-14 03:47:36,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:36,022 INFO L479 AbstractCegarLoop]: Abstraction has 9993 states and 11079 transitions. [2020-10-14 03:47:36,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:36,022 INFO L276 IsEmpty]: Start isEmpty. Operand 9993 states and 11079 transitions. [2020-10-14 03:47:36,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2020-10-14 03:47:36,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:36,048 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:47:36,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:47:36,048 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:36,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:36,049 INFO L82 PathProgramCache]: Analyzing trace with hash -131474154, now seen corresponding path program 1 times [2020-10-14 03:47:36,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:36,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924571209] [2020-10-14 03:47:36,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:36,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:36,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:38,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:38,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:39,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:40,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:41,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:41,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 813 [2020-10-14 03:47:41,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:47:41,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 03:47:41,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:41,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:41,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:41,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 480 [2020-10-14 03:47:41,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:47:41,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:41,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:41,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:41,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:41,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:41,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:41,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:47:41,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:41,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:41,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:41,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:41,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:41,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:41,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:41,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:41,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:41,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:47:41,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:41,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:47:41,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:41,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:41,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:41,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:41,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:41,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:41,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 03:47:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:41,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:41,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:41,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:47:41,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:41,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:47:41,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:41,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:41,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:41,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:41,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:41,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:41,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2020-10-14 03:47:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:41,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:41,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:41,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:47:41,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:41,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 03:47:41,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:41,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:41,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:41,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:41,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 03:47:41,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:41,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2020-10-14 03:47:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:41,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:41,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:41,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:47:41,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:41,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-14 03:47:41,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:41,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:41,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:41,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:41,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:47:41,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:42,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 671 proven. 2 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2020-10-14 03:47:42,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924571209] [2020-10-14 03:47:42,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:42,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:42,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949935639] [2020-10-14 03:47:42,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:42,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:42,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:42,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:42,756 INFO L87 Difference]: Start difference. First operand 9993 states and 11079 transitions. Second operand 7 states. [2020-10-14 03:47:46,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:46,010 INFO L93 Difference]: Finished difference Result 21195 states and 24214 transitions. [2020-10-14 03:47:46,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:47:46,011 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 797 [2020-10-14 03:47:46,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:46,053 INFO L225 Difference]: With dead ends: 21195 [2020-10-14 03:47:46,054 INFO L226 Difference]: Without dead ends: 11208 [2020-10-14 03:47:46,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 03:47:46,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11208 states. [2020-10-14 03:47:46,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11208 to 10332. [2020-10-14 03:47:46,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10332 states. [2020-10-14 03:47:46,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10332 states to 10332 states and 11424 transitions. [2020-10-14 03:47:46,319 INFO L78 Accepts]: Start accepts. Automaton has 10332 states and 11424 transitions. Word has length 797 [2020-10-14 03:47:46,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:46,320 INFO L479 AbstractCegarLoop]: Abstraction has 10332 states and 11424 transitions. [2020-10-14 03:47:46,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:46,320 INFO L276 IsEmpty]: Start isEmpty. Operand 10332 states and 11424 transitions. [2020-10-14 03:47:46,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2020-10-14 03:47:46,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:46,347 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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] [2020-10-14 03:47:46,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:47:46,347 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:46,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:46,348 INFO L82 PathProgramCache]: Analyzing trace with hash -323511328, now seen corresponding path program 1 times [2020-10-14 03:47:46,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:46,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724560775] [2020-10-14 03:47:46,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:46,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:46,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:46,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:48,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:51,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:51,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 840 [2020-10-14 03:47:51,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:47:51,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 03:47:51,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:51,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:51,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:51,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 03:47:51,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:47:51,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:51,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:47:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:51,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:51,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:51,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:47:51,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:51,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:47:51,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:51,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:51,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:51,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:51,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:51,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:47:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:51,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:51,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:51,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:47:51,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:51,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:47:51,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:51,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:51,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:47:51,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:47:51,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:47:51,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:51,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 03:47:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:51,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:51,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:51,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:47:51,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:51,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 03:47:51,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:51,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:51,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:47:51,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:47:51,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:47:51,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:47:51,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:47:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:51,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:51,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:51,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:47:51,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:51,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:47:51,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:51,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:51,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:51,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:47:51,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:51,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:51,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2020-10-14 03:47:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:51,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:51,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:51,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:47:51,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:51,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:47:51,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:51,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:51,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:51,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:47:51,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:51,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:51,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 499 [2020-10-14 03:47:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:52,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:52,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:47:52,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:47:52,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:47:52,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 03:47:52,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:47:52,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:47:52,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:47:52,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:47:52,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:47:52,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:47:52,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1393 backedges. 359 proven. 389 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2020-10-14 03:47:52,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724560775] [2020-10-14 03:47:52,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:47:52,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:47:52,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732351473] [2020-10-14 03:47:52,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:47:52,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:47:52,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:47:52,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:47:52,511 INFO L87 Difference]: Start difference. First operand 10332 states and 11424 transitions. Second operand 7 states. [2020-10-14 03:47:55,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:47:55,428 INFO L93 Difference]: Finished difference Result 24737 states and 27706 transitions. [2020-10-14 03:47:55,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:47:55,428 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 822 [2020-10-14 03:47:55,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:47:55,468 INFO L225 Difference]: With dead ends: 24737 [2020-10-14 03:47:55,468 INFO L226 Difference]: Without dead ends: 14411 [2020-10-14 03:47:55,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 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 03:47:55,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14411 states. [2020-10-14 03:47:55,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14411 to 14062. [2020-10-14 03:47:55,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14062 states. [2020-10-14 03:47:55,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14062 states to 14062 states and 15750 transitions. [2020-10-14 03:47:55,715 INFO L78 Accepts]: Start accepts. Automaton has 14062 states and 15750 transitions. Word has length 822 [2020-10-14 03:47:55,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:47:55,715 INFO L479 AbstractCegarLoop]: Abstraction has 14062 states and 15750 transitions. [2020-10-14 03:47:55,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:47:55,715 INFO L276 IsEmpty]: Start isEmpty. Operand 14062 states and 15750 transitions. [2020-10-14 03:47:55,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 844 [2020-10-14 03:47:55,743 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:47:55,744 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:47:55,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:47:55,744 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:47:55,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:47:55,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1847704302, now seen corresponding path program 1 times [2020-10-14 03:47:55,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:47:55,745 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188364897] [2020-10-14 03:47:55,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:47:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:47:55,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:55,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:56,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:58,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:58,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:47:59,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:00,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:00,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:00,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 861 [2020-10-14 03:48:00,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 03:48:00,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 03:48:00,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:00,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:00,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:00,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 525 [2020-10-14 03:48:00,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 03:48:00,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:00,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:00,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:00,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:00,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:00,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:00,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:00,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:00,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:00,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:01,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:01,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:01,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:01,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:48:01,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:01,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:48:01,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:01,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:01,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:01,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:01,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:01,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:01,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 03:48:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:01,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:01,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:01,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:48:01,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:01,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:48:01,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:01,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:01,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:01,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:01,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:01,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:01,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-14 03:48:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:01,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:01,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:01,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:48:01,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:01,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-14 03:48:01,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:01,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:01,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:01,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:01,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 321 [2020-10-14 03:48:01,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:01,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:01,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:01,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:01,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:48:01,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:01,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 03:48:01,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:01,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:01,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:01,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:01,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 03:48:01,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:01,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2020-10-14 03:48:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:01,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:02,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:02,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:48:02,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:02,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-10-14 03:48:02,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:02,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:02,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:02,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:02,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:48:02,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 917 backedges. 663 proven. 2 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-10-14 03:48:03,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188364897] [2020-10-14 03:48:03,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:03,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:48:03,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155805920] [2020-10-14 03:48:03,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:48:03,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:03,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:48:03,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:48:03,162 INFO L87 Difference]: Start difference. First operand 14062 states and 15750 transitions. Second operand 8 states. [2020-10-14 03:48:06,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:06,204 INFO L93 Difference]: Finished difference Result 28124 states and 31515 transitions. [2020-10-14 03:48:06,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:48:06,204 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 843 [2020-10-14 03:48:06,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:06,239 INFO L225 Difference]: With dead ends: 28124 [2020-10-14 03:48:06,239 INFO L226 Difference]: Without dead ends: 14068 [2020-10-14 03:48:06,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:48:06,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14068 states. [2020-10-14 03:48:06,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14068 to 14062. [2020-10-14 03:48:06,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14062 states. [2020-10-14 03:48:06,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14062 states to 14062 states and 15738 transitions. [2020-10-14 03:48:06,479 INFO L78 Accepts]: Start accepts. Automaton has 14062 states and 15738 transitions. Word has length 843 [2020-10-14 03:48:06,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:06,479 INFO L479 AbstractCegarLoop]: Abstraction has 14062 states and 15738 transitions. [2020-10-14 03:48:06,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:48:06,480 INFO L276 IsEmpty]: Start isEmpty. Operand 14062 states and 15738 transitions. [2020-10-14 03:48:06,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 860 [2020-10-14 03:48:06,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:06,502 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:48:06,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:48:06,502 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:06,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:06,503 INFO L82 PathProgramCache]: Analyzing trace with hash -975092814, now seen corresponding path program 1 times [2020-10-14 03:48:06,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:06,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1748169794] [2020-10-14 03:48:06,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:06,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:06,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:06,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:11,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:11,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 875 [2020-10-14 03:48:11,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:48:11,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-14 03:48:11,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:11,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:11,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:11,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 290 [2020-10-14 03:48:11,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:48:11,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:11,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:11,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:11,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:11,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:11,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:11,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 03:48:11,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:11,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:11,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:11,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:11,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:11,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:11,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:11,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:11,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:11,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:48:11,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:11,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:48:11,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:11,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:11,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:11,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:11,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:11,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:11,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 03:48:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:11,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:11,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:11,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:48:11,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:11,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:48:11,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:11,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:11,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:11,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 03:48:11,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:11,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2020-10-14 03:48:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:11,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:12,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:12,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:48:12,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:12,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-14 03:48:12,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:12,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:12,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:12,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:12,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:48:12,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:12,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2020-10-14 03:48:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:12,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:12,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:12,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:48:12,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:12,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-14 03:48:12,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:12,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:12,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:12,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:48:12,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:12,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:13,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1093 backedges. 489 proven. 249 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2020-10-14 03:48:13,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1748169794] [2020-10-14 03:48:13,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:13,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:13,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709801946] [2020-10-14 03:48:13,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:13,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:13,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:13,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:13,030 INFO L87 Difference]: Start difference. First operand 14062 states and 15738 transitions. Second operand 7 states. [2020-10-14 03:48:18,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:18,203 INFO L93 Difference]: Finished difference Result 30699 states and 35234 transitions. [2020-10-14 03:48:18,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:48:18,204 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 859 [2020-10-14 03:48:18,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:18,247 INFO L225 Difference]: With dead ends: 30699 [2020-10-14 03:48:18,247 INFO L226 Difference]: Without dead ends: 16643 [2020-10-14 03:48:18,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:48:18,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16643 states. [2020-10-14 03:48:18,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16643 to 16451. [2020-10-14 03:48:18,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16451 states. [2020-10-14 03:48:18,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16451 states to 16451 states and 18127 transitions. [2020-10-14 03:48:18,575 INFO L78 Accepts]: Start accepts. Automaton has 16451 states and 18127 transitions. Word has length 859 [2020-10-14 03:48:18,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:18,576 INFO L479 AbstractCegarLoop]: Abstraction has 16451 states and 18127 transitions. [2020-10-14 03:48:18,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:18,576 INFO L276 IsEmpty]: Start isEmpty. Operand 16451 states and 18127 transitions. [2020-10-14 03:48:18,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 908 [2020-10-14 03:48:18,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:18,599 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 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, 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] [2020-10-14 03:48:18,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:48:18,600 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:18,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:18,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1842054919, now seen corresponding path program 1 times [2020-10-14 03:48:18,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:18,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1523896053] [2020-10-14 03:48:18,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:18,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:18,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:18,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:20,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:21,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:22,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:23,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:23,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 925 [2020-10-14 03:48:23,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:23,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 03:48:23,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:23,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-10-14 03:48:23,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:48:23,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:23,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:23,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:23,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:23,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:23,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:23,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:23,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:23,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:23,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:23,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:23,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:23,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:23,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:23,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:23,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:23,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:48:23,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:23,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 03:48:23,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:23,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:23,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:23,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:23,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:48:23,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:24,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 03:48:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:24,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:24,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:24,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:48:24,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:24,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 03:48:24,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:24,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:24,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:24,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:24,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 03:48:24,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:24,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2020-10-14 03:48:24,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:24,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:24,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:24,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:48:24,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:24,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 03:48:24,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:24,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:24,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:24,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 03:48:24,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:24,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:24,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2020-10-14 03:48:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:24,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:24,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:24,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:24,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:24,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:48:24,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:24,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:24,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:24,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:24,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:24,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:24,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 584 [2020-10-14 03:48:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:24,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:24,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:24,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:48:24,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:24,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 03:48:24,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:24,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:48:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:24,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:25,030 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 347 proven. 242 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2020-10-14 03:48:25,030 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1523896053] [2020-10-14 03:48:25,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:25,031 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:25,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487810165] [2020-10-14 03:48:25,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:25,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:25,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:25,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:25,032 INFO L87 Difference]: Start difference. First operand 16451 states and 18127 transitions. Second operand 7 states. [2020-10-14 03:48:29,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:29,674 INFO L93 Difference]: Finished difference Result 34125 states and 38286 transitions. [2020-10-14 03:48:29,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:48:29,675 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 907 [2020-10-14 03:48:29,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:29,706 INFO L225 Difference]: With dead ends: 34125 [2020-10-14 03:48:29,706 INFO L226 Difference]: Without dead ends: 18033 [2020-10-14 03:48:29,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 03:48:29,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18033 states. [2020-10-14 03:48:29,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18033 to 16798. [2020-10-14 03:48:29,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16798 states. [2020-10-14 03:48:30,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16798 states to 16798 states and 18472 transitions. [2020-10-14 03:48:30,004 INFO L78 Accepts]: Start accepts. Automaton has 16798 states and 18472 transitions. Word has length 907 [2020-10-14 03:48:30,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:30,004 INFO L479 AbstractCegarLoop]: Abstraction has 16798 states and 18472 transitions. [2020-10-14 03:48:30,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:30,004 INFO L276 IsEmpty]: Start isEmpty. Operand 16798 states and 18472 transitions. [2020-10-14 03:48:30,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 915 [2020-10-14 03:48:30,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:30,024 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:48:30,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:48:30,024 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:30,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:30,025 INFO L82 PathProgramCache]: Analyzing trace with hash -321121256, now seen corresponding path program 1 times [2020-10-14 03:48:30,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:30,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625675591] [2020-10-14 03:48:30,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:30,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:30,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:30,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:30,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:33,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:34,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:35,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:35,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 932 [2020-10-14 03:48:35,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:48:35,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5056 [2020-10-14 03:48:35,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:35,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 03:48:35,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:48:35,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:35,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:35,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:35,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:35,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:35,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:35,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:35,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:35,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:35,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:35,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:35,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:35,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:35,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:35,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:35,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:35,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:35,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:48:35,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:35,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:48:35,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:35,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:35,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:35,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:35,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:48:35,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:35,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 03:48:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:35,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:35,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:35,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:48:35,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:35,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-14 03:48:35,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:35,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:35,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:35,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:35,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:48:35,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:35,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2020-10-14 03:48:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:35,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:35,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:35,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:48:35,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:35,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:48:35,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:35,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:35,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:35,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:48:35,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:35,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:35,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 481 [2020-10-14 03:48:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:35,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:35,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:35,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:48:35,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:35,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:48:35,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:35,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:48:35,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:35,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:35,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2020-10-14 03:48:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:35,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:36,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:36,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:48:36,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:36,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 03:48:36,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:36,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:36,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:36,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:48:36,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:36,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:36,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 333 proven. 507 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2020-10-14 03:48:36,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625675591] [2020-10-14 03:48:36,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:36,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:36,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608769195] [2020-10-14 03:48:36,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:36,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:36,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:36,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:36,841 INFO L87 Difference]: Start difference. First operand 16798 states and 18472 transitions. Second operand 7 states. [2020-10-14 03:48:40,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:40,181 INFO L93 Difference]: Finished difference Result 33431 states and 37554 transitions. [2020-10-14 03:48:40,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:48:40,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 914 [2020-10-14 03:48:40,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:40,223 INFO L225 Difference]: With dead ends: 33431 [2020-10-14 03:48:40,223 INFO L226 Difference]: Without dead ends: 17002 [2020-10-14 03:48:40,245 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:48:40,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17002 states. [2020-10-14 03:48:40,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17002 to 16798. [2020-10-14 03:48:40,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16798 states. [2020-10-14 03:48:40,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16798 states to 16798 states and 18466 transitions. [2020-10-14 03:48:40,472 INFO L78 Accepts]: Start accepts. Automaton has 16798 states and 18466 transitions. Word has length 914 [2020-10-14 03:48:40,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:40,473 INFO L479 AbstractCegarLoop]: Abstraction has 16798 states and 18466 transitions. [2020-10-14 03:48:40,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:40,473 INFO L276 IsEmpty]: Start isEmpty. Operand 16798 states and 18466 transitions. [2020-10-14 03:48:40,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 918 [2020-10-14 03:48:40,495 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:40,496 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:48:40,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:48:40,496 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:40,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:40,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1318570885, now seen corresponding path program 1 times [2020-10-14 03:48:40,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:40,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309280130] [2020-10-14 03:48:40,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:40,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:40,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:42,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:42,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:42,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:43,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:45,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:45,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 937 [2020-10-14 03:48:45,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:48:45,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-14 03:48:45,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:45,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:45,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:45,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 03:48:45,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:48:45,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:45,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:45,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:45,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:45,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:45,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:45,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:45,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:45,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:45,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:45,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:45,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:45,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:45,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:45,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:45,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:45,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:48:45,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:45,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:48:45,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:45,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:45,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:45,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:45,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:48:45,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:45,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 03:48:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:45,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:45,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:45,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:48:45,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:45,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 03:48:45,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:45,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:45,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:45,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:45,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:48:45,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:45,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-14 03:48:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:45,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:46,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:46,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:48:46,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:46,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 03:48:46,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:46,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:46,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:46,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:48:46,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:46,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:46,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:46,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:46,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:46,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:48:46,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:46,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:48:46,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:46,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:46,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:46,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:46,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:46,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2020-10-14 03:48:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:46,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:46,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:46,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:48:46,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:46,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:48:46,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:46,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:46,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:46,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 03:48:46,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:46,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:46,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2020-10-14 03:48:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:46,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:46,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:46,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:48:46,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:46,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-14 03:48:46,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:46,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:46,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:46,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:48:46,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:46,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:46,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 334 proven. 297 refuted. 0 times theorem prover too weak. 629 trivial. 0 not checked. [2020-10-14 03:48:46,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309280130] [2020-10-14 03:48:46,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:46,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:46,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138421665] [2020-10-14 03:48:46,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:46,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:46,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:46,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:46,754 INFO L87 Difference]: Start difference. First operand 16798 states and 18466 transitions. Second operand 7 states. [2020-10-14 03:48:50,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:50,485 INFO L93 Difference]: Finished difference Result 36521 states and 41286 transitions. [2020-10-14 03:48:50,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:48:50,486 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 917 [2020-10-14 03:48:50,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:50,520 INFO L225 Difference]: With dead ends: 36521 [2020-10-14 03:48:50,520 INFO L226 Difference]: Without dead ends: 20092 [2020-10-14 03:48:50,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:48:50,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20092 states. [2020-10-14 03:48:50,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20092 to 19511. [2020-10-14 03:48:50,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19511 states. [2020-10-14 03:48:50,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19511 states to 19511 states and 21397 transitions. [2020-10-14 03:48:50,864 INFO L78 Accepts]: Start accepts. Automaton has 19511 states and 21397 transitions. Word has length 917 [2020-10-14 03:48:50,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:50,865 INFO L479 AbstractCegarLoop]: Abstraction has 19511 states and 21397 transitions. [2020-10-14 03:48:50,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:48:50,865 INFO L276 IsEmpty]: Start isEmpty. Operand 19511 states and 21397 transitions. [2020-10-14 03:48:50,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 943 [2020-10-14 03:48:50,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:50,894 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:48:50,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:48:50,895 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:50,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:50,896 INFO L82 PathProgramCache]: Analyzing trace with hash -907974342, now seen corresponding path program 1 times [2020-10-14 03:48:50,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:50,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945670087] [2020-10-14 03:48:50,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:51,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:51,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:53,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:53,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:53,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:55,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:57,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:57,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 962 [2020-10-14 03:48:57,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:48:57,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6782 [2020-10-14 03:48:57,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:57,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:57,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:57,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 03:48:57,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:48:57,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:57,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:57,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:57,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:57,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:57,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:57,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:48:57,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:57,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:57,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:57,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:57,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:57,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:57,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:57,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:57,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:57,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:48:57,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:57,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 03:48:57,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:57,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:57,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:48:57,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:57,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 03:48:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:48:58,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:58,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-14 03:48:58,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:58,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:58,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:48:58,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:58,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-10-14 03:48:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:48:58,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:58,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 03:48:58,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:58,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:48:58,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:58,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:58,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:48:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:48:58,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:58,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:48:58,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:58,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:58,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:58,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:58,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2020-10-14 03:48:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:48:58,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:58,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:48:58,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:58,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 03:48:58,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:58,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:58,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 619 [2020-10-14 03:48:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:58,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:58,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:58,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:48:58,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:58,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 03:48:58,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:58,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:58,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:58,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:48:58,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:58,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:48:59,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 359 proven. 297 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2020-10-14 03:48:59,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945670087] [2020-10-14 03:48:59,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:59,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:48:59,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31464307] [2020-10-14 03:48:59,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:48:59,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:59,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:48:59,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:59,799 INFO L87 Difference]: Start difference. First operand 19511 states and 21397 transitions. Second operand 7 states. [2020-10-14 03:49:02,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:02,781 INFO L93 Difference]: Finished difference Result 38677 states and 42473 transitions. [2020-10-14 03:49:02,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:49:02,782 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 942 [2020-10-14 03:49:02,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:02,814 INFO L225 Difference]: With dead ends: 38677 [2020-10-14 03:49:02,815 INFO L226 Difference]: Without dead ends: 19537 [2020-10-14 03:49:02,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:49:02,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19537 states. [2020-10-14 03:49:03,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19537 to 19509. [2020-10-14 03:49:03,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19509 states. [2020-10-14 03:49:03,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19509 states to 19509 states and 21352 transitions. [2020-10-14 03:49:03,057 INFO L78 Accepts]: Start accepts. Automaton has 19509 states and 21352 transitions. Word has length 942 [2020-10-14 03:49:03,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:03,057 INFO L479 AbstractCegarLoop]: Abstraction has 19509 states and 21352 transitions. [2020-10-14 03:49:03,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:03,057 INFO L276 IsEmpty]: Start isEmpty. Operand 19509 states and 21352 transitions. [2020-10-14 03:49:03,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1045 [2020-10-14 03:49:03,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:03,078 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:03,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 03:49:03,079 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:03,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:03,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1740739053, now seen corresponding path program 1 times [2020-10-14 03:49:03,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:03,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689035093] [2020-10-14 03:49:03,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:03,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:03,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:03,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:08,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:08,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1064 [2020-10-14 03:49:08,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:49:08,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 03:49:08,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:08,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 03:49:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:49:08,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:08,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:08,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:08,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:08,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:08,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:08,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:08,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:49:08,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:08,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:08,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:08,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:08,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:08,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:08,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:08,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:08,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:08,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:49:08,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:08,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:49:08,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:08,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:08,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:08,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:08,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:49:08,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:08,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 03:49:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:08,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:08,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:08,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:49:08,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:08,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-14 03:49:08,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:08,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:08,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:08,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:08,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:49:08,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:08,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-10-14 03:49:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:08,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:08,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:08,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:49:08,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:08,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 03:49:08,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:08,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 03:49:08,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:08,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:08,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2020-10-14 03:49:08,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:08,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:08,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:08,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:49:08,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:08,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 03:49:08,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:08,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:08,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:08,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 03:49:08,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:08,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:08,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 611 [2020-10-14 03:49:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:08,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:08,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:08,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:08,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:08,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:49:08,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:08,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:08,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:08,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:49:08,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:08,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:09,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 721 [2020-10-14 03:49:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:09,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:09,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:09,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:49:09,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:09,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 03:49:09,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:09,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:09,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:09,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:49:09,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:09,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:09,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1956 backedges. 389 proven. 633 refuted. 0 times theorem prover too weak. 934 trivial. 0 not checked. [2020-10-14 03:49:09,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [689035093] [2020-10-14 03:49:09,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:09,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:09,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866686999] [2020-10-14 03:49:09,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:09,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:09,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:09,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:09,819 INFO L87 Difference]: Start difference. First operand 19509 states and 21352 transitions. Second operand 7 states.