/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/Problem15_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:31:56,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:31:56,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:31:56,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:31:56,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:31:56,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:31:56,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:31:56,863 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:31:56,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:31:56,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:31:56,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:31:56,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:31:56,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:31:56,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:31:56,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:31:56,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:31:56,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:31:56,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:31:56,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:31:56,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:31:56,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:31:56,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:31:56,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:31:56,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:31:56,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:31:56,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:31:56,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:31:56,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:31:56,883 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:31:56,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:31:56,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:31:56,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:31:56,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:31:56,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:31:56,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:31:56,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:31:56,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:31:56,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:31:56,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:31:56,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:31:56,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:31:56,891 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 03:31:56,932 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:31:56,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:31:56,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:31:56,934 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:31:56,934 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:31:56,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:31:56,935 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:31:56,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:31:56,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:31:56,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:31:56,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:31:56,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:31:56,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:31:56,944 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:31:56,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:31:56,944 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:31:56,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:31:56,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:31:56,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:31:56,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:31:56,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:31:56,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:31:56,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:31:56,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:31:56,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:31:56,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:31:56,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:31:56,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:31:56,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:31:56,953 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 03:31:57,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:31:57,249 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:31:57,252 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:31:57,254 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:31:57,254 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:31:57,255 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label38.c [2020-10-14 03:31:57,314 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f3b3b81b5/5fdfe00f65c7440192441b7f1ad8a915/FLAG0d754ed53 [2020-10-14 03:31:57,908 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:31:57,909 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem15_label38.c [2020-10-14 03:31:57,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f3b3b81b5/5fdfe00f65c7440192441b7f1ad8a915/FLAG0d754ed53 [2020-10-14 03:31:58,159 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f3b3b81b5/5fdfe00f65c7440192441b7f1ad8a915 [2020-10-14 03:31:58,167 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:31:58,169 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:31:58,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:31:58,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:31:58,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:31:58,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:31:58" (1/1) ... [2020-10-14 03:31:58,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b865e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:58, skipping insertion in model container [2020-10-14 03:31:58,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:31:58" (1/1) ... [2020-10-14 03:31:58,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:31:58,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:31:59,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:31:59,088 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:31:59,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:31:59,492 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:31:59,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:59 WrapperNode [2020-10-14 03:31:59,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:31:59,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:31:59,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:31:59,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:31:59,508 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:59" (1/1) ... [2020-10-14 03:31:59,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:59" (1/1) ... [2020-10-14 03:31:59,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:59" (1/1) ... [2020-10-14 03:31:59,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:59" (1/1) ... [2020-10-14 03:31:59,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:59" (1/1) ... [2020-10-14 03:31:59,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:59" (1/1) ... [2020-10-14 03:31:59,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:59" (1/1) ... [2020-10-14 03:31:59,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:31:59,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:31:59,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:31:59,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:31:59,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:59" (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 03:31:59,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:31:59,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:31:59,737 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:31:59,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:31:59,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:31:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:31:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:31:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:31:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:31:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:31:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:31:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:31:59,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:32:05,332 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:32:05,333 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:32:05,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:32:05 BoogieIcfgContainer [2020-10-14 03:32:05,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:32:05,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:32:05,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:32:05,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:32:05,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:31:58" (1/3) ... [2020-10-14 03:32:05,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4623331a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:32:05, skipping insertion in model container [2020-10-14 03:32:05,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:31:59" (2/3) ... [2020-10-14 03:32:05,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4623331a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:32:05, skipping insertion in model container [2020-10-14 03:32:05,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:32:05" (3/3) ... [2020-10-14 03:32:05,359 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem15_label38.c [2020-10-14 03:32:05,370 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:32:05,382 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:32:05,396 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:32:05,425 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:32:05,426 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:32:05,426 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:32:05,426 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:32:05,426 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:32:05,426 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:32:05,427 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:32:05,427 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:32:05,461 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states. [2020-10-14 03:32:05,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-14 03:32:05,473 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:32:05,474 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] [2020-10-14 03:32:05,474 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:32:05,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:32:05,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1592859528, now seen corresponding path program 1 times [2020-10-14 03:32:05,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:32:05,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510254261] [2020-10-14 03:32:05,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:32:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:05,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:06,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:06,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 03:32:06,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:06,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-14 03:32:06,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:06,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:06,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:32:06,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:32:06,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 03:32:06,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 03:32:06,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:32:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:06,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:06,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:06,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:32:06,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:06,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:32:06,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:06,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:06,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:32:06,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:32:06,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:32:06,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:06,171 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 03:32:06,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510254261] [2020-10-14 03:32:06,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:32:06,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 03:32:06,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948050281] [2020-10-14 03:32:06,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:32:06,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:32:06,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:32:06,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:32:06,196 INFO L87 Difference]: Start difference. First operand 437 states. Second operand 5 states. [2020-10-14 03:32:13,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:32:13,947 INFO L93 Difference]: Finished difference Result 1517 states and 2786 transitions. [2020-10-14 03:32:13,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:32:13,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2020-10-14 03:32:13,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:32:13,980 INFO L225 Difference]: With dead ends: 1517 [2020-10-14 03:32:13,981 INFO L226 Difference]: Without dead ends: 1010 [2020-10-14 03:32:13,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:32:14,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1010 states. [2020-10-14 03:32:14,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1010 to 1000. [2020-10-14 03:32:14,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1000 states. [2020-10-14 03:32:14,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1378 transitions. [2020-10-14 03:32:14,107 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1378 transitions. Word has length 36 [2020-10-14 03:32:14,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:32:14,108 INFO L479 AbstractCegarLoop]: Abstraction has 1000 states and 1378 transitions. [2020-10-14 03:32:14,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:32:14,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1378 transitions. [2020-10-14 03:32:14,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-14 03:32:14,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:32:14,113 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:32:14,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:32:14,114 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:32:14,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:32:14,114 INFO L82 PathProgramCache]: Analyzing trace with hash 2073458140, now seen corresponding path program 1 times [2020-10-14 03:32:14,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:32:14,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262682582] [2020-10-14 03:32:14,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:32:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:14,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:14,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:15,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:15,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-14 03:32:15,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:32:15,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1345 [2020-10-14 03:32:15,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:15,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:15,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:32:15,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-14 03:32:15,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 03:32:15,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:15,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:32:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:15,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:15,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:15,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:32:15,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:15,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:32:15,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:15,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:15,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:32:15,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:32:15,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:32:15,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:15,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:32:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:15,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:15,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:15,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:32:15,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:15,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:32:15,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:15,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:15,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:32:15,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:32:15,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:32:15,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:15,747 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:32:15,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262682582] [2020-10-14 03:32:15,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:32:15,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 03:32:15,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552739707] [2020-10-14 03:32:15,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 03:32:15,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:32:15,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 03:32:15,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:32:15,752 INFO L87 Difference]: Start difference. First operand 1000 states and 1378 transitions. Second operand 6 states. [2020-10-14 03:32:24,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:32:24,517 INFO L93 Difference]: Finished difference Result 3871 states and 5369 transitions. [2020-10-14 03:32:24,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:32:24,518 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2020-10-14 03:32:24,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:32:24,532 INFO L225 Difference]: With dead ends: 3871 [2020-10-14 03:32:24,533 INFO L226 Difference]: Without dead ends: 2877 [2020-10-14 03:32:24,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:32:24,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2877 states. [2020-10-14 03:32:24,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2877 to 2875. [2020-10-14 03:32:24,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2875 states. [2020-10-14 03:32:24,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 3634 transitions. [2020-10-14 03:32:24,614 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 3634 transitions. Word has length 105 [2020-10-14 03:32:24,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:32:24,614 INFO L479 AbstractCegarLoop]: Abstraction has 2875 states and 3634 transitions. [2020-10-14 03:32:24,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 03:32:24,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 3634 transitions. [2020-10-14 03:32:24,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-14 03:32:24,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:32:24,622 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:32:24,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:32:24,622 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:32:24,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:32:24,623 INFO L82 PathProgramCache]: Analyzing trace with hash 994470943, now seen corresponding path program 1 times [2020-10-14 03:32:24,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:32:24,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207418481] [2020-10-14 03:32:24,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:32:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:24,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:24,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:25,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:25,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:25,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:27,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:28,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:28,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-14 03:32:28,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:32:28,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4096 [2020-10-14 03:32:28,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:28,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:28,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:32:28,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-14 03:32:28,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 03:32:28,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:28,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:32:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:28,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:28,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:28,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:32:28,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:28,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:32:28,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:28,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:28,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:32:28,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:32:28,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:32:28,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:28,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:32:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:28,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:28,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:28,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:32:28,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:28,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 03:32:28,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:28,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:28,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:32:28,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:32:28,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:32:28,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:29,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 03:32:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:29,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:29,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:29,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 03:32:29,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:29,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-14 03:32:29,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:29,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:29,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:32:29,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:32:29,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 03:32:29,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:29,257 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:32:29,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207418481] [2020-10-14 03:32:29,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:32:29,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:32:29,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435142160] [2020-10-14 03:32:29,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:32:29,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:32:29,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:32:29,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:32:29,262 INFO L87 Difference]: Start difference. First operand 2875 states and 3634 transitions. Second operand 7 states. [2020-10-14 03:32:36,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:32:36,072 INFO L93 Difference]: Finished difference Result 6105 states and 8125 transitions. [2020-10-14 03:32:36,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:32:36,073 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 210 [2020-10-14 03:32:36,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:32:36,101 INFO L225 Difference]: With dead ends: 6105 [2020-10-14 03:32:36,102 INFO L226 Difference]: Without dead ends: 4163 [2020-10-14 03:32:36,108 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 03:32:36,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4163 states. [2020-10-14 03:32:36,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4163 to 2914. [2020-10-14 03:32:36,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2914 states. [2020-10-14 03:32:36,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 3696 transitions. [2020-10-14 03:32:36,192 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 3696 transitions. Word has length 210 [2020-10-14 03:32:36,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:32:36,193 INFO L479 AbstractCegarLoop]: Abstraction has 2914 states and 3696 transitions. [2020-10-14 03:32:36,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:32:36,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 3696 transitions. [2020-10-14 03:32:36,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-10-14 03:32:36,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:32:36,203 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:32:36,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:32:36,203 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:32:36,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:32:36,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1452944230, now seen corresponding path program 1 times [2020-10-14 03:32:36,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:32:36,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598616770] [2020-10-14 03:32:36,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:32:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:36,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:36,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:36,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:41,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:41,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 409 [2020-10-14 03:32:41,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:32:41,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 03:32:41,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:41,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:41,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:32:41,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-10-14 03:32:41,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 03:32:41,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:41,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:32:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:41,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:41,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:41,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:32:41,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:41,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:32:41,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:41,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:41,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:32:41,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:32:41,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:32:41,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:41,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:32:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:41,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:41,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:41,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:32:41,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:41,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-14 03:32:41,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:41,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:32:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:32:41,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-14 03:32:41,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:41,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:32:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:41,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:41,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:41,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 03:32:41,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:41,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-14 03:32:41,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:41,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:41,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:32:41,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:32:41,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 03:32:41,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:41,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2020-10-14 03:32:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:41,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:42,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:42,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 03:32:42,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:42,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 03:32:42,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:42,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:42,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:32:42,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 03:32:42,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:32:42,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 168 proven. 78 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-14 03:32:42,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598616770] [2020-10-14 03:32:42,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:32:42,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:32:42,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854949596] [2020-10-14 03:32:42,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:32:42,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:32:42,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:32:42,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:32:42,379 INFO L87 Difference]: Start difference. First operand 2914 states and 3696 transitions. Second operand 7 states. [2020-10-14 03:32:49,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:32:49,854 INFO L93 Difference]: Finished difference Result 6858 states and 8840 transitions. [2020-10-14 03:32:49,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:32:49,855 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 395 [2020-10-14 03:32:49,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:32:49,879 INFO L225 Difference]: With dead ends: 6858 [2020-10-14 03:32:49,879 INFO L226 Difference]: Without dead ends: 3950 [2020-10-14 03:32:49,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:32:49,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3950 states. [2020-10-14 03:32:49,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3950 to 3911. [2020-10-14 03:32:49,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3911 states. [2020-10-14 03:32:50,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3911 states to 3911 states and 4863 transitions. [2020-10-14 03:32:50,011 INFO L78 Accepts]: Start accepts. Automaton has 3911 states and 4863 transitions. Word has length 395 [2020-10-14 03:32:50,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:32:50,014 INFO L479 AbstractCegarLoop]: Abstraction has 3911 states and 4863 transitions. [2020-10-14 03:32:50,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:32:50,014 INFO L276 IsEmpty]: Start isEmpty. Operand 3911 states and 4863 transitions. [2020-10-14 03:32:50,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2020-10-14 03:32:50,024 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:32:50,028 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:32:50,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:32:50,028 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:32:50,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:32:50,029 INFO L82 PathProgramCache]: Analyzing trace with hash 160421321, now seen corresponding path program 1 times [2020-10-14 03:32:50,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:32:50,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [504944304] [2020-10-14 03:32:50,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:32:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:50,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:50,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:50,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:52,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:55,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:55,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 455 [2020-10-14 03:32:55,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:32:55,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 03:32:55,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:55,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:55,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:32:55,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-10-14 03:32:55,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 03:32:55,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:32:55,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:32:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:55,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:55,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:55,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:32:55,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:55,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 03:32:55,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:55,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:55,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:32:55,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:32:55,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:32:55,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:55,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:32:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:55,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:55,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:55,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:32:55,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:55,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 433 [2020-10-14 03:32:55,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:55,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:55,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:32:55,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:32:55,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-14 03:32:55,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:55,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:32:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:55,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:56,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:56,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 03:32:56,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:56,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-14 03:32:56,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:56,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:56,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:32:56,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:32:56,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-14 03:32:56,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:32:56,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-10-14 03:32:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:32:56,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:32:56,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:32:56,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 03:32:56,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:32:56,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:32:56,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:32:56,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:32:56,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:32:56,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 03:32:56,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:32:56,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:32:56,680 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 212 proven. 78 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-14 03:32:56,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [504944304] [2020-10-14 03:32:56,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:32:56,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:32:56,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640684506] [2020-10-14 03:32:56,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:32:56,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:32:56,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:32:56,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:32:56,685 INFO L87 Difference]: Start difference. First operand 3911 states and 4863 transitions. Second operand 7 states. [2020-10-14 03:33:06,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:33:06,994 INFO L93 Difference]: Finished difference Result 11357 states and 14532 transitions. [2020-10-14 03:33:06,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:33:06,995 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 441 [2020-10-14 03:33:06,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:33:07,031 INFO L225 Difference]: With dead ends: 11357 [2020-10-14 03:33:07,031 INFO L226 Difference]: Without dead ends: 7452 [2020-10-14 03:33:07,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:33:07,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7452 states. [2020-10-14 03:33:07,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7452 to 7100. [2020-10-14 03:33:07,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7100 states. [2020-10-14 03:33:07,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7100 states to 7100 states and 9056 transitions. [2020-10-14 03:33:07,231 INFO L78 Accepts]: Start accepts. Automaton has 7100 states and 9056 transitions. Word has length 441 [2020-10-14 03:33:07,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:33:07,231 INFO L479 AbstractCegarLoop]: Abstraction has 7100 states and 9056 transitions. [2020-10-14 03:33:07,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:33:07,232 INFO L276 IsEmpty]: Start isEmpty. Operand 7100 states and 9056 transitions. [2020-10-14 03:33:07,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2020-10-14 03:33:07,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:33:07,247 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:07,248 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:33:07,248 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:33:07,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:33:07,251 INFO L82 PathProgramCache]: Analyzing trace with hash -585902371, now seen corresponding path program 1 times [2020-10-14 03:33:07,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:33:07,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2023134152] [2020-10-14 03:33:07,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:33:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:07,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:07,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:08,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:09,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:12,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:12,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 486 [2020-10-14 03:33:12,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:33:12,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 03:33:12,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:12,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:12,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:33:12,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 366 [2020-10-14 03:33:12,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-14 03:33:12,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:12,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:33:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:12,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:12,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:12,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:33:12,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:12,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:33:12,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:12,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:12,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:33:12,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:33:12,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:33:12,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:12,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:33:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:12,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:12,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:12,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 03:33:12,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:12,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 03:33:12,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:12,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:12,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:33:12,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:33:12,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:33:12,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:12,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:33:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:12,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:12,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:12,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 03:33:12,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:12,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 03:33:12,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:12,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:12,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:33:12,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:33:12,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:33:12,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:12,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-14 03:33:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:12,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:13,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:13,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 03:33:13,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:13,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 03:33:13,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:13,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:33:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:33:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 03:33:13,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:13,218 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 248 proven. 2 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-14 03:33:13,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2023134152] [2020-10-14 03:33:13,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:33:13,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:33:13,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230047873] [2020-10-14 03:33:13,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:33:13,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:33:13,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:33:13,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:33:13,225 INFO L87 Difference]: Start difference. First operand 7100 states and 9056 transitions. Second operand 7 states. [2020-10-14 03:33:23,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:33:23,378 INFO L93 Difference]: Finished difference Result 16112 states and 20895 transitions. [2020-10-14 03:33:23,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:33:23,379 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 472 [2020-10-14 03:33:23,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:33:23,420 INFO L225 Difference]: With dead ends: 16112 [2020-10-14 03:33:23,420 INFO L226 Difference]: Without dead ends: 9018 [2020-10-14 03:33:23,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:33:23,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9018 states. [2020-10-14 03:33:23,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9018 to 8384. [2020-10-14 03:33:23,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8384 states. [2020-10-14 03:33:23,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8384 states to 8384 states and 10611 transitions. [2020-10-14 03:33:23,628 INFO L78 Accepts]: Start accepts. Automaton has 8384 states and 10611 transitions. Word has length 472 [2020-10-14 03:33:23,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:33:23,629 INFO L479 AbstractCegarLoop]: Abstraction has 8384 states and 10611 transitions. [2020-10-14 03:33:23,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:33:23,630 INFO L276 IsEmpty]: Start isEmpty. Operand 8384 states and 10611 transitions. [2020-10-14 03:33:23,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2020-10-14 03:33:23,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:33:23,642 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:23,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:33:23,643 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:33:23,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:33:23,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1523334434, now seen corresponding path program 1 times [2020-10-14 03:33:23,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:33:23,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521360535] [2020-10-14 03:33:23,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:33:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:23,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:23,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:24,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:26,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:28,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:28,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 498 [2020-10-14 03:33:28,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:33:28,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4960 [2020-10-14 03:33:28,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:28,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:33:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 366 [2020-10-14 03:33:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 03:33:28,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:28,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:33:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:28,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:28,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:28,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:33:28,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:28,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:33:28,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:28,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:28,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:33:28,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:33:28,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:33:28,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:28,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:33:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:28,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:28,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:28,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 03:33:28,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:28,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:33:28,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:28,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:28,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:33:28,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:33:28,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:33:28,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:28,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:33:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:28,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:29,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:29,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 03:33:29,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:29,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 03:33:29,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:29,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:29,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:33:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:33:29,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:33:29,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:29,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-14 03:33:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:29,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:29,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:29,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 03:33:29,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:29,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 03:33:29,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:29,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:29,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:33:29,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:33:29,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:33:29,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:29,295 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-14 03:33:29,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521360535] [2020-10-14 03:33:29,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:33:29,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:33:29,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514046332] [2020-10-14 03:33:29,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:33:29,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:33:29,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:33:29,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:33:29,298 INFO L87 Difference]: Start difference. First operand 8384 states and 10611 transitions. Second operand 7 states. [2020-10-14 03:33:39,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:33:39,706 INFO L93 Difference]: Finished difference Result 24585 states and 31848 transitions. [2020-10-14 03:33:39,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:33:39,708 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 484 [2020-10-14 03:33:39,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:33:39,758 INFO L225 Difference]: With dead ends: 24585 [2020-10-14 03:33:39,759 INFO L226 Difference]: Without dead ends: 13642 [2020-10-14 03:33:39,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 03:33:39,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13642 states. [2020-10-14 03:33:40,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13642 to 10245. [2020-10-14 03:33:40,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10245 states. [2020-10-14 03:33:40,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10245 states to 10245 states and 12100 transitions. [2020-10-14 03:33:40,049 INFO L78 Accepts]: Start accepts. Automaton has 10245 states and 12100 transitions. Word has length 484 [2020-10-14 03:33:40,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:33:40,050 INFO L479 AbstractCegarLoop]: Abstraction has 10245 states and 12100 transitions. [2020-10-14 03:33:40,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:33:40,051 INFO L276 IsEmpty]: Start isEmpty. Operand 10245 states and 12100 transitions. [2020-10-14 03:33:40,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2020-10-14 03:33:40,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:33:40,063 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:40,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:33:40,063 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:33:40,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:33:40,064 INFO L82 PathProgramCache]: Analyzing trace with hash 140625978, now seen corresponding path program 1 times [2020-10-14 03:33:40,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:33:40,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [151198585] [2020-10-14 03:33:40,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:33:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:40,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:40,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:40,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:40,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:43,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:45,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:45,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 529 [2020-10-14 03:33:45,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:33:45,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 03:33:45,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:45,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:45,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:33:45,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 323 [2020-10-14 03:33:45,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 03:33:45,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:45,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:33:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:45,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:45,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:45,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:33:45,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:45,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:33:45,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:45,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:45,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:33:45,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:33:45,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:33:45,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:45,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:33:45,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:45,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:45,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:45,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:33:45,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:45,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:33:45,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:45,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:45,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:33:45,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:33:45,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:33:45,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:45,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:33:45,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:45,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:45,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:45,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 03:33:45,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:45,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 03:33:45,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:45,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:45,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:33:45,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:33:45,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 03:33:45,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:45,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2020-10-14 03:33:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:45,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:45,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:33:45,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 03:33:45,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:33:45,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 03:33:45,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:33:45,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:33:45,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:33:45,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:33:45,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-14 03:33:45,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:33:45,946 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 03:33:45,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [151198585] [2020-10-14 03:33:45,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:33:45,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:33:45,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760495949] [2020-10-14 03:33:45,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:33:45,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:33:45,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:33:45,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:33:45,949 INFO L87 Difference]: Start difference. First operand 10245 states and 12100 transitions. Second operand 7 states. [2020-10-14 03:33:55,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:33:55,550 INFO L93 Difference]: Finished difference Result 29879 states and 35564 transitions. [2020-10-14 03:33:55,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:33:55,552 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 515 [2020-10-14 03:33:55,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:33:55,615 INFO L225 Difference]: With dead ends: 29879 [2020-10-14 03:33:55,616 INFO L226 Difference]: Without dead ends: 19640 [2020-10-14 03:33:55,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 03:33:55,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19640 states. [2020-10-14 03:33:55,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19640 to 15023. [2020-10-14 03:33:55,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15023 states. [2020-10-14 03:33:55,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15023 states to 15023 states and 18118 transitions. [2020-10-14 03:33:55,986 INFO L78 Accepts]: Start accepts. Automaton has 15023 states and 18118 transitions. Word has length 515 [2020-10-14 03:33:55,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:33:55,987 INFO L479 AbstractCegarLoop]: Abstraction has 15023 states and 18118 transitions. [2020-10-14 03:33:55,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:33:55,987 INFO L276 IsEmpty]: Start isEmpty. Operand 15023 states and 18118 transitions. [2020-10-14 03:33:56,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2020-10-14 03:33:56,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:33:56,009 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:33:56,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:33:56,009 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:33:56,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:33:56,010 INFO L82 PathProgramCache]: Analyzing trace with hash -407263094, now seen corresponding path program 1 times [2020-10-14 03:33:56,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:33:56,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802833378] [2020-10-14 03:33:56,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:33:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:33:56,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:56,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:33:57,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:00,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:00,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 584 [2020-10-14 03:34:00,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:34:00,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4796 [2020-10-14 03:34:00,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:00,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:00,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:34:00,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 323 [2020-10-14 03:34:00,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 226 [2020-10-14 03:34:00,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:00,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:34:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:00,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:00,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:00,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:34:00,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:00,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:34:00,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:00,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:00,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:00,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:00,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:00,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:34:01,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:01,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:01,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:01,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:34:01,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:01,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:34:01,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:01,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:01,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:01,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:01,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:01,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:01,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:34:01,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:01,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:01,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:01,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 03:34:01,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:01,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:34:01,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:01,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:01,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:34:01,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:01,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 03:34:01,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:01,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2020-10-14 03:34:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:01,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:01,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:01,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 03:34:01,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:01,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 03:34:01,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:01,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:01,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:34:01,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:34:01,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 224 [2020-10-14 03:34:01,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:01,655 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 397 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-10-14 03:34:01,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802833378] [2020-10-14 03:34:01,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:34:01,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:34:01,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445948399] [2020-10-14 03:34:01,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:34:01,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:34:01,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:34:01,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:34:01,659 INFO L87 Difference]: Start difference. First operand 15023 states and 18118 transitions. Second operand 7 states. [2020-10-14 03:34:10,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:34:10,882 INFO L93 Difference]: Finished difference Result 40592 states and 49694 transitions. [2020-10-14 03:34:10,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:34:10,884 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 570 [2020-10-14 03:34:10,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:34:10,951 INFO L225 Difference]: With dead ends: 40592 [2020-10-14 03:34:10,952 INFO L226 Difference]: Without dead ends: 23087 [2020-10-14 03:34:10,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 03:34:11,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23087 states. [2020-10-14 03:34:11,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23087 to 20615. [2020-10-14 03:34:11,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20615 states. [2020-10-14 03:34:11,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20615 states to 20615 states and 24588 transitions. [2020-10-14 03:34:11,361 INFO L78 Accepts]: Start accepts. Automaton has 20615 states and 24588 transitions. Word has length 570 [2020-10-14 03:34:11,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:34:11,362 INFO L479 AbstractCegarLoop]: Abstraction has 20615 states and 24588 transitions. [2020-10-14 03:34:11,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:34:11,362 INFO L276 IsEmpty]: Start isEmpty. Operand 20615 states and 24588 transitions. [2020-10-14 03:34:11,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2020-10-14 03:34:11,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:34:11,392 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:34:11,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:34:11,393 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:34:11,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:34:11,393 INFO L82 PathProgramCache]: Analyzing trace with hash 73988844, now seen corresponding path program 1 times [2020-10-14 03:34:11,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:34:11,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1768737811] [2020-10-14 03:34:11,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:34:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:11,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:11,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:11,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:15,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:16,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:16,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:16,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 655 [2020-10-14 03:34:16,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:34:16,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 03:34:16,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:16,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:16,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:34:16,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 247 [2020-10-14 03:34:16,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 203 [2020-10-14 03:34:16,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:16,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:34:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:16,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:16,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:16,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:34:16,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:16,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:34:16,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:16,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:16,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:16,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:16,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:16,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:16,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:34:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:16,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:16,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:16,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-14 03:34:16,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:16,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 03:34:16,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:16,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:16,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:34:16,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:16,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 232 [2020-10-14 03:34:16,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:16,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2020-10-14 03:34:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:16,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:17,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:17,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:34:17,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:17,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-14 03:34:17,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:17,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:34:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:34:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 201 [2020-10-14 03:34:17,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:34:17,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2020-10-14 03:34:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:17,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:17,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:17,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 03:34:17,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:17,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-14 03:34:17,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:17,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:17,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:17,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-10-14 03:34:17,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:17,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:17,701 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 288 proven. 167 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2020-10-14 03:34:17,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1768737811] [2020-10-14 03:34:17,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:34:17,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:34:17,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845582283] [2020-10-14 03:34:17,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:34:17,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:34:17,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:34:17,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:34:17,703 INFO L87 Difference]: Start difference. First operand 20615 states and 24588 transitions. Second operand 7 states. [2020-10-14 03:34:26,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:34:26,132 INFO L93 Difference]: Finished difference Result 42797 states and 51047 transitions. [2020-10-14 03:34:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:34:26,133 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 641 [2020-10-14 03:34:26,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:34:26,203 INFO L225 Difference]: With dead ends: 42797 [2020-10-14 03:34:26,203 INFO L226 Difference]: Without dead ends: 21875 [2020-10-14 03:34:26,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:34:26,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21875 states. [2020-10-14 03:34:26,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21875 to 21863. [2020-10-14 03:34:26,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21863 states. [2020-10-14 03:34:26,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21863 states to 21863 states and 25927 transitions. [2020-10-14 03:34:26,655 INFO L78 Accepts]: Start accepts. Automaton has 21863 states and 25927 transitions. Word has length 641 [2020-10-14 03:34:26,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:34:26,656 INFO L479 AbstractCegarLoop]: Abstraction has 21863 states and 25927 transitions. [2020-10-14 03:34:26,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:34:26,656 INFO L276 IsEmpty]: Start isEmpty. Operand 21863 states and 25927 transitions. [2020-10-14 03:34:26,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2020-10-14 03:34:26,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:34:26,689 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 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] [2020-10-14 03:34:26,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:34:26,690 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:34:26,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:34:26,691 INFO L82 PathProgramCache]: Analyzing trace with hash -663087409, now seen corresponding path program 1 times [2020-10-14 03:34:26,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:34:26,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [311961576] [2020-10-14 03:34:26,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:34:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:26,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:27,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:27,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:29,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:30,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:31,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:31,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 671 [2020-10-14 03:34:31,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:34:31,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5069 [2020-10-14 03:34:31,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:31,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:31,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:34:31,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 284 [2020-10-14 03:34:31,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-14 03:34:31,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:32,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:34:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:32,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:32,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:32,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:34:32,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:32,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:34:32,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:32,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:32,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:32,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:32,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:32,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:32,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:34:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:32,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:32,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:32,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 03:34:32,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:32,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-14 03:34:32,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:32,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:32,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:34:32,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:32,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 269 [2020-10-14 03:34:32,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:32,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:34:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:32,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:32,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:32,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-14 03:34:32,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:32,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 03:34:32,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:32,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:32,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:34:32,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:34:32,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 03:34:32,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:32,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-14 03:34:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:32,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:32,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:32,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 03:34:32,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:32,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:34:32,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:32,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 118 [2020-10-14 03:34:32,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:32,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:32,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 482 [2020-10-14 03:34:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:32,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:32,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:32,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-14 03:34:32,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:32,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:34:32,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:32,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:32,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:32,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-14 03:34:32,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:32,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:32,714 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 201 proven. 156 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2020-10-14 03:34:32,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [311961576] [2020-10-14 03:34:32,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:34:32,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:34:32,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432768284] [2020-10-14 03:34:32,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:34:32,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:34:32,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:34:32,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:34:32,717 INFO L87 Difference]: Start difference. First operand 21863 states and 25927 transitions. Second operand 7 states. [2020-10-14 03:34:39,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:34:39,151 INFO L93 Difference]: Finished difference Result 43734 states and 51884 transitions. [2020-10-14 03:34:39,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:34:39,153 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 655 [2020-10-14 03:34:39,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:34:39,227 INFO L225 Difference]: With dead ends: 43734 [2020-10-14 03:34:39,227 INFO L226 Difference]: Without dead ends: 21877 [2020-10-14 03:34:39,261 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 03:34:39,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21877 states. [2020-10-14 03:34:39,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21877 to 21245. [2020-10-14 03:34:39,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21245 states. [2020-10-14 03:34:39,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21245 states to 21245 states and 24659 transitions. [2020-10-14 03:34:39,632 INFO L78 Accepts]: Start accepts. Automaton has 21245 states and 24659 transitions. Word has length 655 [2020-10-14 03:34:39,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:34:39,633 INFO L479 AbstractCegarLoop]: Abstraction has 21245 states and 24659 transitions. [2020-10-14 03:34:39,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:34:39,634 INFO L276 IsEmpty]: Start isEmpty. Operand 21245 states and 24659 transitions. [2020-10-14 03:34:39,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2020-10-14 03:34:39,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:34:39,660 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 03:34:39,660 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:34:39,661 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:34:39,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:34:39,661 INFO L82 PathProgramCache]: Analyzing trace with hash -462697955, now seen corresponding path program 1 times [2020-10-14 03:34:39,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:34:39,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1247466210] [2020-10-14 03:34:39,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:34:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:39,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:40,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:40,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:40,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:44,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:44,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 680 [2020-10-14 03:34:44,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:34:44,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 03:34:44,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:44,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:44,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:34:44,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-10-14 03:34:44,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-14 03:34:44,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:44,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:34:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:44,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:44,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:44,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:34:44,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:44,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:34:44,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:44,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:44,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:44,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:44,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:44,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:44,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:34:44,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:44,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:45,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:45,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:34:45,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:45,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 03:34:45,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:45,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:45,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:34:45,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:45,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 195 [2020-10-14 03:34:45,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:45,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:34:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:45,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:45,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:45,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 03:34:45,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:45,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 03:34:45,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:45,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:45,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:34:45,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:34:45,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 03:34:45,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:45,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2020-10-14 03:34:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:45,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:45,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:45,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:34:45,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:45,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:34:45,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:45,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:45,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:45,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 03:34:45,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:45,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:45,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 468 [2020-10-14 03:34:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:45,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:45,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:45,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 03:34:45,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:45,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:34:45,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:45,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:45,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:45,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-10-14 03:34:45,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:45,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:45,757 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 232 proven. 218 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2020-10-14 03:34:45,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1247466210] [2020-10-14 03:34:45,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:34:45,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:34:45,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569193347] [2020-10-14 03:34:45,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:34:45,759 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:34:45,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:34:45,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:34:45,760 INFO L87 Difference]: Start difference. First operand 21245 states and 24659 transitions. Second operand 7 states. [2020-10-14 03:34:52,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:34:52,138 INFO L93 Difference]: Finished difference Result 44650 states and 51711 transitions. [2020-10-14 03:34:52,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:34:52,146 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 664 [2020-10-14 03:34:52,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:34:52,203 INFO L225 Difference]: With dead ends: 44650 [2020-10-14 03:34:52,203 INFO L226 Difference]: Without dead ends: 23411 [2020-10-14 03:34:52,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:34:52,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23411 states. [2020-10-14 03:34:52,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23411 to 22169. [2020-10-14 03:34:52,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22169 states. [2020-10-14 03:34:52,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22169 states to 22169 states and 25636 transitions. [2020-10-14 03:34:52,620 INFO L78 Accepts]: Start accepts. Automaton has 22169 states and 25636 transitions. Word has length 664 [2020-10-14 03:34:52,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:34:52,621 INFO L479 AbstractCegarLoop]: Abstraction has 22169 states and 25636 transitions. [2020-10-14 03:34:52,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:34:52,621 INFO L276 IsEmpty]: Start isEmpty. Operand 22169 states and 25636 transitions. [2020-10-14 03:34:52,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2020-10-14 03:34:52,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:34:52,641 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 03:34:52,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:34:52,642 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:34:52,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:34:52,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1613643198, now seen corresponding path program 1 times [2020-10-14 03:34:52,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:34:52,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1653453166] [2020-10-14 03:34:52,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:34:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:52,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:52,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:52,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:54,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:57,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:57,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:57,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 684 [2020-10-14 03:34:57,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:34:57,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-14 03:34:57,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:57,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:57,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:34:57,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 478 [2020-10-14 03:34:57,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 03:34:57,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:57,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:34:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:57,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:57,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:57,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:34:57,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:57,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:34:57,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:57,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:57,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:57,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:57,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:57,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:57,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:34:57,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:57,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:57,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:57,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:34:57,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:57,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:34:57,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:57,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:57,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:57,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:57,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:57,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:57,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:34:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:57,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:57,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:57,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 03:34:57,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:57,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:34:57,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:57,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:57,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:34:57,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:57,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:34:57,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:58,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-14 03:34:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:58,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:58,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:58,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 03:34:58,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:58,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:34:58,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:58,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:58,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:34:58,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:34:58,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 03:34:58,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:58,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 03:34:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:34:58,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:34:58,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:34:58,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 03:34:58,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:34:58,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-14 03:34:58,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:34:58,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:34:58,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:34:58,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:34:58,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-14 03:34:58,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:34:58,707 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 549 proven. 2 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2020-10-14 03:34:58,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1653453166] [2020-10-14 03:34:58,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:34:58,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:34:58,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247581340] [2020-10-14 03:34:58,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:34:58,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:34:58,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:34:58,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:34:58,710 INFO L87 Difference]: Start difference. First operand 22169 states and 25636 transitions. Second operand 7 states. [2020-10-14 03:35:05,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:35:05,642 INFO L93 Difference]: Finished difference Result 53138 states and 62118 transitions. [2020-10-14 03:35:05,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:35:05,645 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 668 [2020-10-14 03:35:05,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:35:05,718 INFO L225 Difference]: With dead ends: 53138 [2020-10-14 03:35:05,719 INFO L226 Difference]: Without dead ends: 28774 [2020-10-14 03:35:05,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 03:35:05,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28774 states. [2020-10-14 03:35:06,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28774 to 27479. [2020-10-14 03:35:06,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27479 states. [2020-10-14 03:35:06,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27479 states to 27479 states and 31842 transitions. [2020-10-14 03:35:06,240 INFO L78 Accepts]: Start accepts. Automaton has 27479 states and 31842 transitions. Word has length 668 [2020-10-14 03:35:06,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:35:06,241 INFO L479 AbstractCegarLoop]: Abstraction has 27479 states and 31842 transitions. [2020-10-14 03:35:06,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:35:06,241 INFO L276 IsEmpty]: Start isEmpty. Operand 27479 states and 31842 transitions. [2020-10-14 03:35:06,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 721 [2020-10-14 03:35:06,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:35:06,264 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 03:35:06,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:35:06,265 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:35:06,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:35:06,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1966361508, now seen corresponding path program 1 times [2020-10-14 03:35:06,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:35:06,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1249957985] [2020-10-14 03:35:06,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:35:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:06,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:06,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:06,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:07,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:11,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:11,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:11,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:11,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 736 [2020-10-14 03:35:11,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:35:11,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-10-14 03:35:11,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:11,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:11,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:35:11,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 551 [2020-10-14 03:35:11,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:35:11,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:11,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:35:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:11,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:11,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:11,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:35:11,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:11,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:35:11,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:11,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:11,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:11,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:11,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:11,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:11,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:35:11,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:11,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:11,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:11,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-10-14 03:35:11,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:11,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:35:11,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:11,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:11,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:11,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:11,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:11,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:11,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2020-10-14 03:35:11,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:11,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:11,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:11,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-14 03:35:11,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:11,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:35:11,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:11,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:11,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:11,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:11,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:11,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:11,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2020-10-14 03:35:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:11,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:11,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:11,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:35:11,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:11,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-14 03:35:11,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:11,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:11,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:35:11,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-14 03:35:11,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:35:11,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:11,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2020-10-14 03:35:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:11,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:11,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:11,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-14 03:35:11,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:11,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:35:11,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:11,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:11,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:11,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-14 03:35:11,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:11,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:12,083 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2020-10-14 03:35:12,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1249957985] [2020-10-14 03:35:12,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:35:12,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:35:12,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369434091] [2020-10-14 03:35:12,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:35:12,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:35:12,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:35:12,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:35:12,086 INFO L87 Difference]: Start difference. First operand 27479 states and 31842 transitions. Second operand 5 states. [2020-10-14 03:35:18,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:35:18,198 INFO L93 Difference]: Finished difference Result 65411 states and 76044 transitions. [2020-10-14 03:35:18,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:35:18,200 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 720 [2020-10-14 03:35:18,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:35:18,255 INFO L225 Difference]: With dead ends: 65411 [2020-10-14 03:35:18,255 INFO L226 Difference]: Without dead ends: 37938 [2020-10-14 03:35:18,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:35:18,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37938 states. [2020-10-14 03:35:18,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37938 to 35768. [2020-10-14 03:35:18,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35768 states. [2020-10-14 03:35:18,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35768 states to 35768 states and 40864 transitions. [2020-10-14 03:35:18,821 INFO L78 Accepts]: Start accepts. Automaton has 35768 states and 40864 transitions. Word has length 720 [2020-10-14 03:35:18,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:35:18,822 INFO L479 AbstractCegarLoop]: Abstraction has 35768 states and 40864 transitions. [2020-10-14 03:35:18,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:35:18,822 INFO L276 IsEmpty]: Start isEmpty. Operand 35768 states and 40864 transitions. [2020-10-14 03:35:18,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2020-10-14 03:35:18,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:35:18,839 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:35:18,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:35:18,840 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:35:18,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:35:18,840 INFO L82 PathProgramCache]: Analyzing trace with hash -630987060, now seen corresponding path program 1 times [2020-10-14 03:35:18,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:35:18,841 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699106424] [2020-10-14 03:35:18,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:35:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:18,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:19,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:22,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:22,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 750 [2020-10-14 03:35:22,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:35:22,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3846 [2020-10-14 03:35:22,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:22,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:22,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:35:22,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 380 [2020-10-14 03:35:22,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:35:22,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:22,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:35:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:22,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:22,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:22,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:35:22,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:22,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:35:22,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:22,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:22,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:22,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:22,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:22,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:35:22,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:35:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:22,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:22,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:22,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-14 03:35:22,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:22,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:35:22,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:22,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:22,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:22,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:22,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:22,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:23,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-14 03:35:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:23,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:23,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:23,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 03:35:23,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:23,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 03:35:23,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:23,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:23,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:35:23,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:23,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 03:35:23,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:23,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-14 03:35:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:23,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:23,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:23,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:35:23,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:23,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:35:23,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:23,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:23,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:35:23,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:35:23,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:35:23,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:23,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 486 [2020-10-14 03:35:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:23,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:23,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:23,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-14 03:35:23,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:23,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 03:35:23,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:23,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:23,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:23,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 218 [2020-10-14 03:35:23,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:23,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:23,827 INFO L134 CoverageAnalysis]: Checked inductivity of 982 backedges. 343 proven. 109 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2020-10-14 03:35:23,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699106424] [2020-10-14 03:35:23,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:35:23,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:35:23,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127914036] [2020-10-14 03:35:23,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:35:23,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:35:23,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:35:23,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:35:23,829 INFO L87 Difference]: Start difference. First operand 35768 states and 40864 transitions. Second operand 7 states. [2020-10-14 03:35:31,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:35:31,886 INFO L93 Difference]: Finished difference Result 80200 states and 94805 transitions. [2020-10-14 03:35:31,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:35:31,889 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 734 [2020-10-14 03:35:31,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:35:31,979 INFO L225 Difference]: With dead ends: 80200 [2020-10-14 03:35:31,979 INFO L226 Difference]: Without dead ends: 44438 [2020-10-14 03:35:32,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:35:32,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44438 states. [2020-10-14 03:35:32,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44438 to 41695. [2020-10-14 03:35:32,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41695 states. [2020-10-14 03:35:32,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41695 states to 41695 states and 47263 transitions. [2020-10-14 03:35:32,817 INFO L78 Accepts]: Start accepts. Automaton has 41695 states and 47263 transitions. Word has length 734 [2020-10-14 03:35:32,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:35:32,817 INFO L479 AbstractCegarLoop]: Abstraction has 41695 states and 47263 transitions. [2020-10-14 03:35:32,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:35:32,817 INFO L276 IsEmpty]: Start isEmpty. Operand 41695 states and 47263 transitions. [2020-10-14 03:35:32,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2020-10-14 03:35:32,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:35:32,836 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 03:35:32,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:35:32,837 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:35:32,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:35:32,837 INFO L82 PathProgramCache]: Analyzing trace with hash -966835387, now seen corresponding path program 1 times [2020-10-14 03:35:32,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:35:32,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749325240] [2020-10-14 03:35:32,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:35:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:33,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:33,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:33,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:34,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:37,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:37,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 761 [2020-10-14 03:35:37,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:35:37,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 03:35:37,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:37,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:37,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:35:37,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 555 [2020-10-14 03:35:37,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-14 03:35:37,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:38,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:35:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:38,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:38,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:38,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:35:38,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:38,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:35:38,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:38,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:38,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:38,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:38,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:38,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:38,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:35:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:38,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:38,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:38,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 03:35:38,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:38,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 03:35:38,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:38,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:38,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:38,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:38,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:38,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:38,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:35:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:38,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:38,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:38,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-14 03:35:38,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:38,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:35:38,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:38,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:38,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:35:38,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:38,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:35:38,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:38,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 393 [2020-10-14 03:35:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:38,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:38,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:38,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-14 03:35:38,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:38,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 03:35:38,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:38,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:35:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:35:38,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-10-14 03:35:38,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:38,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2020-10-14 03:35:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:35:38,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:35:38,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:35:38,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-14 03:35:38,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:35:38,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 03:35:38,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:35:38,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:35:38,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:35:38,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:35:38,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 169 [2020-10-14 03:35:38,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:35:38,814 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 552 proven. 2 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2020-10-14 03:35:38,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749325240] [2020-10-14 03:35:38,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:35:38,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:35:38,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814779288] [2020-10-14 03:35:38,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:35:38,816 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:35:38,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:35:38,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:35:38,816 INFO L87 Difference]: Start difference. First operand 41695 states and 47263 transitions. Second operand 7 states.