/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:39:49,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:39:49,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:39:49,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:39:49,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:39:49,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:39:49,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:39:49,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:39:49,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:39:49,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:39:49,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:39:49,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:39:49,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:39:49,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:39:49,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:39:49,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:39:49,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:39:49,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:39:49,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:39:49,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:39:49,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:39:49,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:39:49,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:39:49,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:39:49,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:39:49,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:39:49,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:39:49,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:39:49,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:39:49,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:39:49,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:39:49,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:39:49,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:39:49,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:39:49,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:39:49,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:39:49,724 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:39:49,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:39:49,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:39:49,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:39:49,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:39:49,729 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 22:39:49,784 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:39:49,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:39:49,788 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:39:49,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:39:49,789 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:39:49,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:39:49,789 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:39:49,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:39:49,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:39:49,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:39:49,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:39:49,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:39:49,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:39:49,793 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:39:49,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:39:49,793 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:39:49,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:39:49,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:39:49,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:39:49,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:39:49,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:39:49,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:39:49,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:39:49,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:39:49,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:39:49,799 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:39:49,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:39:49,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:39:49,801 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:39:49,802 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:39:50,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:39:50,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:39:50,189 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:39:50,191 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:39:50,191 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:39:50,192 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label04.c [2020-10-14 22:39:50,274 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d7957ac9/9d49e98b521344ff936abe4d7f57d1f2/FLAGd28ddcb80 [2020-10-14 22:39:51,009 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:39:51,010 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem18_label04.c [2020-10-14 22:39:51,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d7957ac9/9d49e98b521344ff936abe4d7f57d1f2/FLAGd28ddcb80 [2020-10-14 22:39:51,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4d7957ac9/9d49e98b521344ff936abe4d7f57d1f2 [2020-10-14 22:39:51,107 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:39:51,110 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:39:51,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:39:51,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:39:51,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:39:51,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:39:51" (1/1) ... [2020-10-14 22:39:51,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef7a733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:39:51, skipping insertion in model container [2020-10-14 22:39:51,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:39:51" (1/1) ... [2020-10-14 22:39:51,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:39:51,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:39:52,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:39:52,461 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:39:52,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:39:52,930 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:39:52,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:39:52 WrapperNode [2020-10-14 22:39:52,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:39:52,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:39:52,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:39:52,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:39:52,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:39:52" (1/1) ... [2020-10-14 22:39:52,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:39:52" (1/1) ... [2020-10-14 22:39:53,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:39:52" (1/1) ... [2020-10-14 22:39:53,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:39:52" (1/1) ... [2020-10-14 22:39:53,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:39:52" (1/1) ... [2020-10-14 22:39:53,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:39:52" (1/1) ... [2020-10-14 22:39:53,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:39:52" (1/1) ... [2020-10-14 22:39:53,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:39:53,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:39:53,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:39:53,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:39:53,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:39:52" (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 22:39:53,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:39:53,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:39:53,305 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:39:53,306 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:39:53,306 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2020-10-14 22:39:53,307 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:39:53,307 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:39:53,308 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:39:53,308 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2020-10-14 22:39:53,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:39:53,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:39:53,310 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:39:53,310 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:39:53,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:39:53,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:39:59,813 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:39:59,814 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:39:59,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:39:59 BoogieIcfgContainer [2020-10-14 22:39:59,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:39:59,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:39:59,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:39:59,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:39:59,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:39:51" (1/3) ... [2020-10-14 22:39:59,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239f57cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:39:59, skipping insertion in model container [2020-10-14 22:39:59,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:39:52" (2/3) ... [2020-10-14 22:39:59,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239f57cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:39:59, skipping insertion in model container [2020-10-14 22:39:59,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:39:59" (3/3) ... [2020-10-14 22:39:59,841 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label04.c [2020-10-14 22:39:59,855 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:39:59,866 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:39:59,886 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:39:59,921 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:39:59,921 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:39:59,922 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:39:59,922 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:39:59,922 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:39:59,922 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:39:59,922 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:39:59,922 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:39:59,962 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2020-10-14 22:39:59,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-14 22:39:59,974 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:39:59,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:39:59,976 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:39:59,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:39:59,985 INFO L82 PathProgramCache]: Analyzing trace with hash -636143767, now seen corresponding path program 1 times [2020-10-14 22:39:59,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:39:59,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831596076] [2020-10-14 22:39:59,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:40:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:00,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:00,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:00,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-14 22:40:00,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:00,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 564 [2020-10-14 22:40:00,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:00,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:40:00,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:40:00,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 22:40:00,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:40:00,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:40:00,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:00,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:00,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:00,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:40:00,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:00,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:40:00,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:00,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:00,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:40:00,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:40:00,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:40:00,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:40:01,014 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 22:40:01,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1831596076] [2020-10-14 22:40:01,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:40:01,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 22:40:01,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700572476] [2020-10-14 22:40:01,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:40:01,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:40:01,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:40:01,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:40:01,049 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 5 states. [2020-10-14 22:40:10,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:40:10,205 INFO L93 Difference]: Finished difference Result 2270 states and 4349 transitions. [2020-10-14 22:40:10,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:40:10,208 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-10-14 22:40:10,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:40:10,242 INFO L225 Difference]: With dead ends: 2270 [2020-10-14 22:40:10,242 INFO L226 Difference]: Without dead ends: 1432 [2020-10-14 22:40:10,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:40:10,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2020-10-14 22:40:10,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1425. [2020-10-14 22:40:10,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2020-10-14 22:40:10,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2643 transitions. [2020-10-14 22:40:10,463 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2643 transitions. Word has length 58 [2020-10-14 22:40:10,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:40:10,465 INFO L479 AbstractCegarLoop]: Abstraction has 1425 states and 2643 transitions. [2020-10-14 22:40:10,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:40:10,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2643 transitions. [2020-10-14 22:40:10,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-14 22:40:10,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:40:10,486 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:40:10,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:40:10,486 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:40:10,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:40:10,488 INFO L82 PathProgramCache]: Analyzing trace with hash 81688133, now seen corresponding path program 1 times [2020-10-14 22:40:10,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:40:10,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [479986022] [2020-10-14 22:40:10,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:40:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:10,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:10,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:11,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:11,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-14 22:40:11,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:40:11,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1120 [2020-10-14 22:40:11,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:11,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:11,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:40:11,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:40:11,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 22:40:11,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:40:11,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:40:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:11,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:11,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:11,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:40:11,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:11,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 22:40:11,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:11,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:11,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:40:11,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:40:11,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:40:11,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:40:11,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:40:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:11,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:11,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:11,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 22:40:11,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:11,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-14 22:40:11,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:11,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:40:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:40:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 22:40:11,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:40:12,070 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:40:12,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [479986022] [2020-10-14 22:40:12,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:40:12,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:40:12,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333421064] [2020-10-14 22:40:12,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:40:12,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:40:12,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:40:12,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:40:12,075 INFO L87 Difference]: Start difference. First operand 1425 states and 2643 transitions. Second operand 7 states. [2020-10-14 22:40:24,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:40:24,481 INFO L93 Difference]: Finished difference Result 4355 states and 8096 transitions. [2020-10-14 22:40:24,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:40:24,482 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 127 [2020-10-14 22:40:24,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:40:24,504 INFO L225 Difference]: With dead ends: 4355 [2020-10-14 22:40:24,504 INFO L226 Difference]: Without dead ends: 2936 [2020-10-14 22:40:24,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 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 22:40:24,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2020-10-14 22:40:24,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 2877. [2020-10-14 22:40:24,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2877 states. [2020-10-14 22:40:24,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 4347 transitions. [2020-10-14 22:40:24,616 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 4347 transitions. Word has length 127 [2020-10-14 22:40:24,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:40:24,616 INFO L479 AbstractCegarLoop]: Abstraction has 2877 states and 4347 transitions. [2020-10-14 22:40:24,616 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:40:24,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 4347 transitions. [2020-10-14 22:40:24,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-14 22:40:24,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:40:24,619 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:40:24,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:40:24,619 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:40:24,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:40:24,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1605240704, now seen corresponding path program 1 times [2020-10-14 22:40:24,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:40:24,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246899947] [2020-10-14 22:40:24,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:40:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:24,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:24,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:25,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:25,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-14 22:40:25,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:40:25,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-10-14 22:40:25,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:25,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:25,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:40:25,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:40:25,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 22:40:25,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:40:25,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:40:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:25,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:25,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:25,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:40:25,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:25,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:40:25,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:25,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:25,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:40:25,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:40:25,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:40:25,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:40:25,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:40:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:25,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:25,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:25,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 22:40:25,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:25,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 22:40:25,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:25,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:25,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:40:25,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:40:25,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 22:40:25,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:40:25,631 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:40:25,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1246899947] [2020-10-14 22:40:25,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:40:25,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:40:25,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90378261] [2020-10-14 22:40:25,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:40:25,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:40:25,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:40:25,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:40:25,636 INFO L87 Difference]: Start difference. First operand 2877 states and 4347 transitions. Second operand 7 states. [2020-10-14 22:40:36,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:40:36,906 INFO L93 Difference]: Finished difference Result 8767 states and 13393 transitions. [2020-10-14 22:40:36,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 22:40:36,908 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 130 [2020-10-14 22:40:36,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:40:36,949 INFO L225 Difference]: With dead ends: 8767 [2020-10-14 22:40:36,949 INFO L226 Difference]: Without dead ends: 5896 [2020-10-14 22:40:36,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:40:36,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2020-10-14 22:40:37,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 5072. [2020-10-14 22:40:37,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5072 states. [2020-10-14 22:40:37,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5072 states to 5072 states and 7058 transitions. [2020-10-14 22:40:37,173 INFO L78 Accepts]: Start accepts. Automaton has 5072 states and 7058 transitions. Word has length 130 [2020-10-14 22:40:37,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:40:37,173 INFO L479 AbstractCegarLoop]: Abstraction has 5072 states and 7058 transitions. [2020-10-14 22:40:37,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:40:37,174 INFO L276 IsEmpty]: Start isEmpty. Operand 5072 states and 7058 transitions. [2020-10-14 22:40:37,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-14 22:40:37,176 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:40:37,176 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 22:40:37,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:40:37,177 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:40:37,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:40:37,178 INFO L82 PathProgramCache]: Analyzing trace with hash 2122052941, now seen corresponding path program 1 times [2020-10-14 22:40:37,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:40:37,178 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292421952] [2020-10-14 22:40:37,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:40:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:37,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:37,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:37,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-14 22:40:37,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:37,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 526 [2020-10-14 22:40:37,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:37,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:37,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:40:37,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:40:37,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 22:40:37,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 22:40:37,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:40:37,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:37,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:37,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:37,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:40:37,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:37,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 22:40:37,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:37,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:37,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:40:37,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:40:37,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:40:37,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:40:37,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:40:37,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:37,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:38,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:38,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:40:38,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:38,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-14 22:40:38,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:38,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:38,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:40:38,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:40:38,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 22:40:38,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:40:38,359 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:40:38,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292421952] [2020-10-14 22:40:38,360 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:40:38,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:40:38,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596665065] [2020-10-14 22:40:38,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:40:38,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:40:38,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:40:38,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:40:38,362 INFO L87 Difference]: Start difference. First operand 5072 states and 7058 transitions. Second operand 7 states. [2020-10-14 22:40:58,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:40:58,976 INFO L93 Difference]: Finished difference Result 14686 states and 20882 transitions. [2020-10-14 22:40:58,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 22:40:58,977 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 155 [2020-10-14 22:40:58,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:40:59,024 INFO L225 Difference]: With dead ends: 14686 [2020-10-14 22:40:59,024 INFO L226 Difference]: Without dead ends: 9620 [2020-10-14 22:40:59,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:40:59,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9620 states. [2020-10-14 22:40:59,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9620 to 8807. [2020-10-14 22:40:59,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8807 states. [2020-10-14 22:40:59,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8807 states to 8807 states and 11440 transitions. [2020-10-14 22:40:59,294 INFO L78 Accepts]: Start accepts. Automaton has 8807 states and 11440 transitions. Word has length 155 [2020-10-14 22:40:59,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:40:59,296 INFO L479 AbstractCegarLoop]: Abstraction has 8807 states and 11440 transitions. [2020-10-14 22:40:59,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:40:59,298 INFO L276 IsEmpty]: Start isEmpty. Operand 8807 states and 11440 transitions. [2020-10-14 22:40:59,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2020-10-14 22:40:59,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:40:59,312 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:40:59,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:40:59,313 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:40:59,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:40:59,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1626670911, now seen corresponding path program 1 times [2020-10-14 22:40:59,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:40:59,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853895540] [2020-10-14 22:40:59,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:40:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:59,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:59,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:03,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:03,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 476 [2020-10-14 22:41:03,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:41:03,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4031 [2020-10-14 22:41:03,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:03,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:03,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:41:03,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:41:03,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 312 [2020-10-14 22:41:03,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:03,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:41:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:03,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:03,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:03,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:41:03,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:03,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:41:03,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:03,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:03,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:41:03,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:41:03,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:41:03,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:41:03,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:41:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:03,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:04,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:04,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:41:04,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:04,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 611 [2020-10-14 22:41:04,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:04,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:41:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:41:04,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-14 22:41:04,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:04,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:41:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:04,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:04,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:04,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:41:04,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:04,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 22:41:04,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:04,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:04,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:41:04,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:41:04,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 22:41:04,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:04,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2020-10-14 22:41:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:04,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:04,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:04,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:41:04,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:04,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 22:41:04,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:04,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:41:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-14 22:41:04,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:41:04,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:05,288 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 102 proven. 92 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 22:41:05,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853895540] [2020-10-14 22:41:05,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:41:05,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:41:05,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481763153] [2020-10-14 22:41:05,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:41:05,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:41:05,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:41:05,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:41:05,293 INFO L87 Difference]: Start difference. First operand 8807 states and 11440 transitions. Second operand 8 states. [2020-10-14 22:41:21,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:41:21,797 INFO L93 Difference]: Finished difference Result 22470 states and 29789 transitions. [2020-10-14 22:41:21,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 22:41:21,803 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 462 [2020-10-14 22:41:21,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:41:21,861 INFO L225 Difference]: With dead ends: 22470 [2020-10-14 22:41:21,861 INFO L226 Difference]: Without dead ends: 13669 [2020-10-14 22:41:21,886 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 22:41:21,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13669 states. [2020-10-14 22:41:22,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13669 to 13429. [2020-10-14 22:41:22,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13429 states. [2020-10-14 22:41:22,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13429 states to 13429 states and 17092 transitions. [2020-10-14 22:41:22,253 INFO L78 Accepts]: Start accepts. Automaton has 13429 states and 17092 transitions. Word has length 462 [2020-10-14 22:41:22,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:41:22,255 INFO L479 AbstractCegarLoop]: Abstraction has 13429 states and 17092 transitions. [2020-10-14 22:41:22,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:41:22,255 INFO L276 IsEmpty]: Start isEmpty. Operand 13429 states and 17092 transitions. [2020-10-14 22:41:22,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2020-10-14 22:41:22,273 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:41:22,275 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:41:22,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:41:22,275 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:41:22,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:41:22,276 INFO L82 PathProgramCache]: Analyzing trace with hash -546308528, now seen corresponding path program 1 times [2020-10-14 22:41:22,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:41:22,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1603643312] [2020-10-14 22:41:22,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:41:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:22,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:22,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:22,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:25,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:27,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:27,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 603 [2020-10-14 22:41:27,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:41:27,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-14 22:41:27,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:27,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:27,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 22:41:27,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:41:27,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 538 [2020-10-14 22:41:27,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:27,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:41:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:27,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:27,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:27,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:41:27,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:27,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:41:27,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:27,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:27,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:41:27,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:41:27,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:41:27,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:27,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:41:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:27,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:27,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:27,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:27,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 22:41:27,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:41:27,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-10-14 22:41:27,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:27,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:41:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:41:27,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 22:41:27,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:28,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-14 22:41:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:28,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:28,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:28,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 348 [2020-10-14 22:41:28,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:28,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 712 [2020-10-14 22:41:28,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:28,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:41:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:41:28,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 348 [2020-10-14 22:41:28,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:29,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:41:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:29,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:29,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:29,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-14 22:41:29,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:29,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-14 22:41:29,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:29,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:29,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:41:29,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:41:29,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 22:41:29,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:29,608 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 282 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-14 22:41:29,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1603643312] [2020-10-14 22:41:29,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:41:29,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:41:29,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493590306] [2020-10-14 22:41:29,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:41:29,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:41:29,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:41:29,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:41:29,611 INFO L87 Difference]: Start difference. First operand 13429 states and 17092 transitions. Second operand 7 states. [2020-10-14 22:41:38,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:41:38,139 INFO L93 Difference]: Finished difference Result 27301 states and 35081 transitions. [2020-10-14 22:41:38,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:41:38,140 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 589 [2020-10-14 22:41:38,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:41:38,201 INFO L225 Difference]: With dead ends: 27301 [2020-10-14 22:41:38,201 INFO L226 Difference]: Without dead ends: 13878 [2020-10-14 22:41:38,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:41:38,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13878 states. [2020-10-14 22:41:38,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13878 to 12734. [2020-10-14 22:41:38,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12734 states. [2020-10-14 22:41:38,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12734 states to 12734 states and 16364 transitions. [2020-10-14 22:41:38,568 INFO L78 Accepts]: Start accepts. Automaton has 12734 states and 16364 transitions. Word has length 589 [2020-10-14 22:41:38,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:41:38,570 INFO L479 AbstractCegarLoop]: Abstraction has 12734 states and 16364 transitions. [2020-10-14 22:41:38,570 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:41:38,570 INFO L276 IsEmpty]: Start isEmpty. Operand 12734 states and 16364 transitions. [2020-10-14 22:41:38,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2020-10-14 22:41:38,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:41:38,591 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:41:38,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:41:38,592 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:41:38,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:41:38,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1385223918, now seen corresponding path program 1 times [2020-10-14 22:41:38,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:41:38,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154474173] [2020-10-14 22:41:38,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:41:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:38,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:38,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:40,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:42,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:43,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:43,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 664 [2020-10-14 22:41:43,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:41:43,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4832 [2020-10-14 22:41:43,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:43,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:43,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:41:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-14 22:41:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 411 [2020-10-14 22:41:43,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:41:43,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:41:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:43,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:43,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:43,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:41:43,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:43,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:41:43,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:43,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:43,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:41:43,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:41:43,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:41:43,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:41:43,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:41:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:43,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:43,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:43,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-14 22:41:43,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:43,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-10-14 22:41:43,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:43,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:43,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:41:43,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:41:43,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-14 22:41:43,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:43,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-10-14 22:41:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:44,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:44,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:45,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:45,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:41:45,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:41:45,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1186 [2020-10-14 22:41:45,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:45,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:45,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:41:45,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:41:45,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 310 [2020-10-14 22:41:45,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:45,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:41:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:45,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:45,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:45,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:41:45,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:45,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 22:41:45,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:45,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:45,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:41:45,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:41:45,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 22:41:45,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:41:45,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2020-10-14 22:41:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:45,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:45,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:45,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:41:45,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:45,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 22:41:45,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:45,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:45,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:41:45,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:41:45,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 22:41:45,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:46,462 INFO L134 CoverageAnalysis]: Checked inductivity of 533 backedges. 432 proven. 8 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-10-14 22:41:46,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154474173] [2020-10-14 22:41:46,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:41:46,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-14 22:41:46,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387356766] [2020-10-14 22:41:46,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 22:41:46,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:41:46,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 22:41:46,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:41:46,465 INFO L87 Difference]: Start difference. First operand 12734 states and 16364 transitions. Second operand 10 states. [2020-10-14 22:42:09,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:42:09,781 INFO L93 Difference]: Finished difference Result 41440 states and 55583 transitions. [2020-10-14 22:42:09,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 22:42:09,783 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 648 [2020-10-14 22:42:09,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:42:09,880 INFO L225 Difference]: With dead ends: 41440 [2020-10-14 22:42:09,881 INFO L226 Difference]: Without dead ends: 24147 [2020-10-14 22:42:09,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2020-10-14 22:42:09,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24147 states. [2020-10-14 22:42:10,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24147 to 22658. [2020-10-14 22:42:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22658 states. [2020-10-14 22:42:10,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22658 states to 22658 states and 27103 transitions. [2020-10-14 22:42:10,476 INFO L78 Accepts]: Start accepts. Automaton has 22658 states and 27103 transitions. Word has length 648 [2020-10-14 22:42:10,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:42:10,477 INFO L479 AbstractCegarLoop]: Abstraction has 22658 states and 27103 transitions. [2020-10-14 22:42:10,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 22:42:10,477 INFO L276 IsEmpty]: Start isEmpty. Operand 22658 states and 27103 transitions. [2020-10-14 22:42:10,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 990 [2020-10-14 22:42:10,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:42:10,494 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:42:10,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:42:10,495 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:42:10,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:42:10,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1659817079, now seen corresponding path program 1 times [2020-10-14 22:42:10,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:42:10,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128336055] [2020-10-14 22:42:10,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:42:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:10,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:12,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:12,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1009 [2020-10-14 22:42:12,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:12,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1653 [2020-10-14 22:42:12,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:12,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:12,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:42:12,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:42:12,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 22:42:12,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:42:12,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:42:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:12,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:12,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:12,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:42:12,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:12,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:42:12,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:12,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:12,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:42:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:42:12,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:42:12,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:42:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:12,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:12,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:12,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:42:12,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:12,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-14 22:42:12,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:12,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:12,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:42:12,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:12,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:42:12,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:42:12,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:42:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:12,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:12,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:12,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:42:12,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:12,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:42:12,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:12,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:12,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:42:12,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:12,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:42:12,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:42:13,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:42:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:13,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:13,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:13,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:42:13,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:13,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:42:13,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:13,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:13,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:42:13,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:13,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:42:13,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:42:13,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:42:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:13,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:13,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:13,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:42:13,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:13,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-14 22:42:13,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:13,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:13,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:42:13,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:13,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:42:13,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:42:13,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:42:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:13,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:13,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:13,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:42:13,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:13,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:42:13,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:13,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:13,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:42:13,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:13,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:42:13,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:42:13,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:42:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:13,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:13,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:13,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:42:13,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:13,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 22:42:13,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:13,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:13,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:42:13,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:42:13,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 22:42:13,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:42:14,753 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 349 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-14 22:42:14,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128336055] [2020-10-14 22:42:14,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:42:14,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:42:14,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77360357] [2020-10-14 22:42:14,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:42:14,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:42:14,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:42:14,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:42:14,758 INFO L87 Difference]: Start difference. First operand 22658 states and 27103 transitions. Second operand 7 states. [2020-10-14 22:42:28,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:42:28,801 INFO L93 Difference]: Finished difference Result 52740 states and 64488 transitions. [2020-10-14 22:42:28,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:42:28,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 989 [2020-10-14 22:42:28,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:42:28,953 INFO L225 Difference]: With dead ends: 52740 [2020-10-14 22:42:28,953 INFO L226 Difference]: Without dead ends: 30790 [2020-10-14 22:42:28,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:42:29,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30790 states. [2020-10-14 22:42:29,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30790 to 28582. [2020-10-14 22:42:29,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28582 states. [2020-10-14 22:42:29,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28582 states to 28582 states and 34325 transitions. [2020-10-14 22:42:29,578 INFO L78 Accepts]: Start accepts. Automaton has 28582 states and 34325 transitions. Word has length 989 [2020-10-14 22:42:29,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:42:29,580 INFO L479 AbstractCegarLoop]: Abstraction has 28582 states and 34325 transitions. [2020-10-14 22:42:29,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:42:29,580 INFO L276 IsEmpty]: Start isEmpty. Operand 28582 states and 34325 transitions. [2020-10-14 22:42:29,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 997 [2020-10-14 22:42:29,593 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:42:29,595 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:42:29,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:42:29,595 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:42:29,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:42:29,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1295809681, now seen corresponding path program 1 times [2020-10-14 22:42:29,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:42:29,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [594385408] [2020-10-14 22:42:29,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:42:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:29,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:31,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:31,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1016 [2020-10-14 22:42:31,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:31,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1219 [2020-10-14 22:42:31,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:31,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:31,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:42:31,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 856 [2020-10-14 22:42:31,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 22:42:31,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:42:31,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:42:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:31,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:31,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:31,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:42:31,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:31,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:42:31,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:31,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:31,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:42:31,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:31,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:42:31,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:42:31,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:42:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:31,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:31,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:31,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:42:31,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:31,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 22:42:31,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:31,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:31,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:42:31,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:31,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:42:31,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:42:31,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:42:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:31,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:31,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:31,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:42:31,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:31,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:42:31,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:31,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:31,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:42:31,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:31,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:42:31,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:42:31,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:42:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:31,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:31,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:31,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:42:31,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:31,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:42:31,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:31,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:31,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:42:31,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:31,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:42:31,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:42:31,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:42:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:31,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:31,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:31,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 317 [2020-10-14 22:42:31,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:31,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-14 22:42:31,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:31,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:42:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 308 [2020-10-14 22:42:31,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:42:31,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:42:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:31,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:31,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:31,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 22:42:31,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:31,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 22:42:31,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:31,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:31,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:42:31,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:31,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 22:42:31,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:42:31,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 849 [2020-10-14 22:42:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:32,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:32,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:32,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-14 22:42:32,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:32,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 22:42:32,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:32,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:32,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:42:32,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:42:32,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-14 22:42:32,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:42:32,685 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 349 proven. 2 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2020-10-14 22:42:32,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [594385408] [2020-10-14 22:42:32,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:42:32,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:42:32,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909421704] [2020-10-14 22:42:32,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:42:32,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:42:32,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:42:32,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:42:32,688 INFO L87 Difference]: Start difference. First operand 28582 states and 34325 transitions. Second operand 7 states. [2020-10-14 22:42:49,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:42:49,938 INFO L93 Difference]: Finished difference Result 70183 states and 86279 transitions. [2020-10-14 22:42:49,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:42:49,940 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 996 [2020-10-14 22:42:49,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:42:50,070 INFO L225 Difference]: With dead ends: 70183 [2020-10-14 22:42:50,070 INFO L226 Difference]: Without dead ends: 42309 [2020-10-14 22:42:50,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 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 22:42:50,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42309 states. [2020-10-14 22:42:50,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42309 to 40055. [2020-10-14 22:42:50,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40055 states. [2020-10-14 22:42:50,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40055 states to 40055 states and 46993 transitions. [2020-10-14 22:42:50,877 INFO L78 Accepts]: Start accepts. Automaton has 40055 states and 46993 transitions. Word has length 996 [2020-10-14 22:42:50,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:42:50,879 INFO L479 AbstractCegarLoop]: Abstraction has 40055 states and 46993 transitions. [2020-10-14 22:42:50,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:42:50,879 INFO L276 IsEmpty]: Start isEmpty. Operand 40055 states and 46993 transitions. [2020-10-14 22:42:50,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1011 [2020-10-14 22:42:50,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:42:50,898 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:42:50,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:42:50,898 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:42:50,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:42:50,899 INFO L82 PathProgramCache]: Analyzing trace with hash 583935514, now seen corresponding path program 1 times [2020-10-14 22:42:50,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:42:50,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659627857] [2020-10-14 22:42:50,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:42:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:51,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:53,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:53,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1030 [2020-10-14 22:42:53,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:53,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2010 [2020-10-14 22:42:53,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:53,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:53,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:42:53,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:42:53,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 22:42:53,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:42:53,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:42:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:53,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:53,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:53,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:42:53,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:53,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:42:53,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:53,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:53,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:42:53,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:53,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:42:53,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:42:53,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:42:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:53,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:53,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:53,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:42:53,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:53,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 22:42:53,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:53,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:53,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:42:53,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:53,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:42:53,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:42:53,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:42:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:53,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:53,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:53,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:42:53,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:53,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 22:42:53,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:53,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:53,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:42:53,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:53,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:42:53,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:42:53,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:42:53,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:53,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:53,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:53,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:42:53,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:53,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 22:42:53,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:53,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:42:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:53,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:42:53,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:42:53,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:42:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:53,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:53,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:53,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:42:53,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:53,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 22:42:53,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:53,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:53,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:42:53,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:53,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:42:53,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:42:53,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:42:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:53,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:53,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:53,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:42:53,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:53,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:42:53,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:53,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:42:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:42:53,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:42:53,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:42:53,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:42:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:42:53,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:42:54,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:42:54,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-14 22:42:54,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:42:54,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 22:42:54,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:42:54,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:42:54,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:42:54,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:42:54,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-14 22:42:54,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:42:54,610 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 391 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-14 22:42:54,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659627857] [2020-10-14 22:42:54,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:42:54,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:42:54,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658560316] [2020-10-14 22:42:54,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:42:54,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:42:54,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:42:54,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:42:54,613 INFO L87 Difference]: Start difference. First operand 40055 states and 46993 transitions. Second operand 7 states. [2020-10-14 22:43:05,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:43:05,528 INFO L93 Difference]: Finished difference Result 93637 states and 113203 transitions. [2020-10-14 22:43:05,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:43:05,530 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1010 [2020-10-14 22:43:05,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:43:05,694 INFO L225 Difference]: With dead ends: 93637 [2020-10-14 22:43:05,695 INFO L226 Difference]: Without dead ends: 54290 [2020-10-14 22:43:05,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 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 22:43:05,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54290 states. [2020-10-14 22:43:06,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54290 to 52785. [2020-10-14 22:43:06,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52785 states. [2020-10-14 22:43:06,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52785 states to 52785 states and 62864 transitions. [2020-10-14 22:43:06,830 INFO L78 Accepts]: Start accepts. Automaton has 52785 states and 62864 transitions. Word has length 1010 [2020-10-14 22:43:06,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:43:06,832 INFO L479 AbstractCegarLoop]: Abstraction has 52785 states and 62864 transitions. [2020-10-14 22:43:06,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:43:06,832 INFO L276 IsEmpty]: Start isEmpty. Operand 52785 states and 62864 transitions. [2020-10-14 22:43:06,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1091 [2020-10-14 22:43:06,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:43:06,850 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:43:06,850 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:43:06,851 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:43:06,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:43:06,851 INFO L82 PathProgramCache]: Analyzing trace with hash -511449478, now seen corresponding path program 1 times [2020-10-14 22:43:06,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:43:06,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1171332996] [2020-10-14 22:43:06,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:43:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:07,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:07,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:10,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:10,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1110 [2020-10-14 22:43:10,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:43:10,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3461 [2020-10-14 22:43:10,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:10,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:10,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:43:10,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 849 [2020-10-14 22:43:10,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 204 [2020-10-14 22:43:10,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:43:10,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:43:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:10,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:10,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:10,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:43:10,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:10,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:43:10,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:10,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:10,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:43:10,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:43:10,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:43:10,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:43:10,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:43:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:10,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:10,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:10,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:43:10,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:10,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 22:43:10,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:10,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:10,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:43:10,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:43:10,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:43:10,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:43:10,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:43:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:10,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:10,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:10,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:43:10,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:10,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 22:43:10,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:10,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:10,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:43:10,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:43:10,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:43:10,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:43:10,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:43:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:10,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:10,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:10,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:43:10,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:10,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:43:10,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:10,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:10,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:43:10,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:43:10,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:43:10,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:43:11,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:43:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:11,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:11,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:11,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:43:11,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:11,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-14 22:43:11,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:11,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:11,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:43:11,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:43:11,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 301 [2020-10-14 22:43:11,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:43:11,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:43:11,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:11,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:11,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:11,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 22:43:11,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:11,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 22:43:11,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:11,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:43:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:43:11,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 22:43:11,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:43:11,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 842 [2020-10-14 22:43:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:11,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:11,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:11,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-14 22:43:11,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:11,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 22:43:11,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:11,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:43:11,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:43:11,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 199 [2020-10-14 22:43:11,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:43:12,492 INFO L134 CoverageAnalysis]: Checked inductivity of 856 backedges. 551 proven. 2 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2020-10-14 22:43:12,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1171332996] [2020-10-14 22:43:12,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:43:12,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:43:12,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81887405] [2020-10-14 22:43:12,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:43:12,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:43:12,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:43:12,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:43:12,495 INFO L87 Difference]: Start difference. First operand 52785 states and 62864 transitions. Second operand 7 states. [2020-10-14 22:43:27,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:43:27,782 INFO L93 Difference]: Finished difference Result 126126 states and 150875 transitions. [2020-10-14 22:43:27,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:43:27,783 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1090 [2020-10-14 22:43:27,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:43:27,943 INFO L225 Difference]: With dead ends: 126126 [2020-10-14 22:43:27,943 INFO L226 Difference]: Without dead ends: 74049 [2020-10-14 22:43:28,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 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 22:43:28,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74049 states. [2020-10-14 22:43:28,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74049 to 70481. [2020-10-14 22:43:28,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70481 states. [2020-10-14 22:43:29,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70481 states to 70481 states and 82496 transitions. [2020-10-14 22:43:29,106 INFO L78 Accepts]: Start accepts. Automaton has 70481 states and 82496 transitions. Word has length 1090 [2020-10-14 22:43:29,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:43:29,107 INFO L479 AbstractCegarLoop]: Abstraction has 70481 states and 82496 transitions. [2020-10-14 22:43:29,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:43:29,107 INFO L276 IsEmpty]: Start isEmpty. Operand 70481 states and 82496 transitions. [2020-10-14 22:43:29,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1133 [2020-10-14 22:43:29,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:43:29,137 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:43:29,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:43:29,137 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:43:29,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:43:29,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1733598533, now seen corresponding path program 1 times [2020-10-14 22:43:29,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:43:29,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595698640] [2020-10-14 22:43:29,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:43:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:29,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:30,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:30,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1154 [2020-10-14 22:43:30,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:30,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 866 [2020-10-14 22:43:30,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:30,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:30,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:43:30,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 997 [2020-10-14 22:43:30,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-14 22:43:30,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:43:30,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:43:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:30,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:30,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:30,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:43:30,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:30,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:43:30,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:30,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:30,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:43:30,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:43:30,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:43:30,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:43:30,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:43:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:30,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:30,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:30,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 532 [2020-10-14 22:43:30,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:30,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:43:30,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:30,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:30,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:43:30,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:43:30,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:43:30,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:43:30,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 22:43:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:30,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:30,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:30,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-14 22:43:30,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:30,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 22:43:30,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:30,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:30,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:43:30,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:43:30,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:43:30,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:43:30,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-10-14 22:43:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:30,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:30,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:30,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 22:43:30,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:30,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:43:30,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:30,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:30,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:43:30,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:43:30,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:43:30,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:43:30,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2020-10-14 22:43:30,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:43:30,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:43:30,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:43:30,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 310 [2020-10-14 22:43:30,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:43:30,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 22:43:30,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:43:30,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:43:30,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:43:30,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:43:30,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:43:30,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0