/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label15.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:42:55,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:42:55,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:42:55,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:42:55,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:42:55,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:42:55,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:42:55,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:42:55,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:42:55,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:42:55,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:42:55,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:42:55,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:42:55,090 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:42:55,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:42:55,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:42:55,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:42:55,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:42:55,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:42:55,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:42:55,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:42:55,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:42:55,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:42:55,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:42:55,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:42:55,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:42:55,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:42:55,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:42:55,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:42:55,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:42:55,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:42:55,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:42:55,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:42:55,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:42:55,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:42:55,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:42:55,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:42:55,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:42:55,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:42:55,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:42:55,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:42:55,129 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 03:42:55,150 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:42:55,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:42:55,151 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:42:55,151 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:42:55,152 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:42:55,152 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:42:55,152 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:42:55,152 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:42:55,152 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:42:55,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:42:55,153 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:42:55,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:42:55,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:42:55,153 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:42:55,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:42:55,154 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:42:55,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:42:55,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:42:55,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:42:55,154 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:42:55,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:42:55,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:42:55,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:42:55,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:42:55,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:42:55,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:42:55,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:42:55,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:42:55,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:42:55,156 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 03:42:55,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:42:55,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:42:55,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:42:55,523 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:42:55,523 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:42:55,524 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label15.c [2020-10-14 03:42:55,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a1e00823/c59f3ef529924036b97508edd8bd7a92/FLAG30408017d [2020-10-14 03:42:56,287 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:42:56,288 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label15.c [2020-10-14 03:42:56,310 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a1e00823/c59f3ef529924036b97508edd8bd7a92/FLAG30408017d [2020-10-14 03:42:56,473 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a1e00823/c59f3ef529924036b97508edd8bd7a92 [2020-10-14 03:42:56,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:42:56,486 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:42:56,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:42:56,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:42:56,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:42:56,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:42:56" (1/1) ... [2020-10-14 03:42:56,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b22a6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:56, skipping insertion in model container [2020-10-14 03:42:56,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:42:56" (1/1) ... [2020-10-14 03:42:56,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:42:56,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:42:57,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:42:57,404 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:42:57,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:42:57,749 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:42:57,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:57 WrapperNode [2020-10-14 03:42:57,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:42:57,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:42:57,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:42:57,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:42:57,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:57" (1/1) ... [2020-10-14 03:42:57,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:57" (1/1) ... [2020-10-14 03:42:57,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:57" (1/1) ... [2020-10-14 03:42:57,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:57" (1/1) ... [2020-10-14 03:42:57,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:57" (1/1) ... [2020-10-14 03:42:57,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:57" (1/1) ... [2020-10-14 03:42:57,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:57" (1/1) ... [2020-10-14 03:42:57,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:42:57,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:42:57,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:42:57,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:42:57,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:42:58,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:42:58,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:42:58,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:42:58,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:42:58,016 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:42:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:42:58,017 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:42:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:42:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:42:58,018 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:42:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:42:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:42:58,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:43:02,522 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:43:02,524 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:43:02,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:43:02 BoogieIcfgContainer [2020-10-14 03:43:02,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:43:02,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:43:02,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:43:02,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:43:02,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:42:56" (1/3) ... [2020-10-14 03:43:02,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b620c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:43:02, skipping insertion in model container [2020-10-14 03:43:02,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:42:57" (2/3) ... [2020-10-14 03:43:02,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b620c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:43:02, skipping insertion in model container [2020-10-14 03:43:02,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:43:02" (3/3) ... [2020-10-14 03:43:02,548 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label15.c [2020-10-14 03:43:02,559 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:43:02,574 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:43:02,589 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:43:02,621 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:43:02,621 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:43:02,621 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:43:02,621 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:43:02,622 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:43:02,622 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:43:02,622 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:43:02,622 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:43:02,651 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:43:02,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-14 03:43:02,659 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:02,660 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] [2020-10-14 03:43:02,661 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:02,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:02,667 INFO L82 PathProgramCache]: Analyzing trace with hash -1980245419, now seen corresponding path program 1 times [2020-10-14 03:43:02,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:02,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649108715] [2020-10-14 03:43:02,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:02,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:03,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:03,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 03:43:03,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:03,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-10-14 03:43:03,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:03,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:03,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:43:03,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:43:03,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 03:43:03,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 03:43:03,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:03,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:03,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:03,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:03,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:03,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:43:03,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:03,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:03,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:43:03,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:03,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:43:03,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649108715] [2020-10-14 03:43:03,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:43:03,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:43:03,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996089317] [2020-10-14 03:43:03,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:43:03,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:03,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:43:03,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:43:03,313 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 03:43:06,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:06,980 INFO L93 Difference]: Finished difference Result 1169 states and 2165 transitions. [2020-10-14 03:43:06,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:43:06,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-10-14 03:43:06,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:07,005 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 03:43:07,006 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 03:43:07,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:43:07,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 03:43:07,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 689. [2020-10-14 03:43:07,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2020-10-14 03:43:07,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 1077 transitions. [2020-10-14 03:43:07,119 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 1077 transitions. Word has length 28 [2020-10-14 03:43:07,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:07,119 INFO L479 AbstractCegarLoop]: Abstraction has 689 states and 1077 transitions. [2020-10-14 03:43:07,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:43:07,120 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 1077 transitions. [2020-10-14 03:43:07,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-14 03:43:07,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:07,126 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:07,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:43:07,127 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:07,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:07,127 INFO L82 PathProgramCache]: Analyzing trace with hash 2132414141, now seen corresponding path program 1 times [2020-10-14 03:43:07,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:07,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586477986] [2020-10-14 03:43:07,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:07,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:07,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:07,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:07,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:43:07,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:43:07,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 813 [2020-10-14 03:43:07,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:07,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:07,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:07,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 03:43:07,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 03:43:07,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:08,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:08,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:08,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:08,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:08,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:08,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:43:08,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:08,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:08,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:08,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:08,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:08,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 03:43:08,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:08,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:08,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:08,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 03:43:08,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:08,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 03:43:08,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:08,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:08,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:08,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:08,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 03:43:08,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:08,215 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:43:08,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586477986] [2020-10-14 03:43:08,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:08,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 03:43:08,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903599272] [2020-10-14 03:43:08,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 03:43:08,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:08,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 03:43:08,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:43:08,219 INFO L87 Difference]: Start difference. First operand 689 states and 1077 transitions. Second operand 6 states. [2020-10-14 03:43:13,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:13,730 INFO L93 Difference]: Finished difference Result 2741 states and 4344 transitions. [2020-10-14 03:43:13,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:43:13,732 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2020-10-14 03:43:13,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:13,744 INFO L225 Difference]: With dead ends: 2741 [2020-10-14 03:43:13,744 INFO L226 Difference]: Without dead ends: 2058 [2020-10-14 03:43:13,747 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:43:13,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2020-10-14 03:43:13,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 2054. [2020-10-14 03:43:13,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2054 states. [2020-10-14 03:43:13,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2054 states to 2054 states and 2930 transitions. [2020-10-14 03:43:13,817 INFO L78 Accepts]: Start accepts. Automaton has 2054 states and 2930 transitions. Word has length 103 [2020-10-14 03:43:13,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:13,817 INFO L479 AbstractCegarLoop]: Abstraction has 2054 states and 2930 transitions. [2020-10-14 03:43:13,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 03:43:13,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2054 states and 2930 transitions. [2020-10-14 03:43:13,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-10-14 03:43:13,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:13,830 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:13,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:43:13,831 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:13,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:13,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1878078447, now seen corresponding path program 1 times [2020-10-14 03:43:13,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:13,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408664417] [2020-10-14 03:43:13,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:13,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:14,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:14,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:14,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:15,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:17,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:18,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:18,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 279 [2020-10-14 03:43:18,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:43:18,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 03:43:18,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:18,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-10-14 03:43:18,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 03:43:18,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 38 [2020-10-14 03:43:19,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:19,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:19,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:19,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:19,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:19,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:43:19,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:19,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:19,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:19,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:19,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:19,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:19,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:19,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:19,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:19,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:43:19,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:19,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:43:19,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:19,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:19,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:19,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:19,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:19,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:19,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:43:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:19,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:19,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:19,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:43:19,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:19,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:43:19,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:19,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:19,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:19,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:19,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-14 03:43:19,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:19,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-14 03:43:19,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:19,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:19,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:19,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:43:19,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:19,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 03:43:19,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:19,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:19,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:19,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:19,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:43:19,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:19,411 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 208 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-14 03:43:19,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1408664417] [2020-10-14 03:43:19,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:19,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:43:19,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480784160] [2020-10-14 03:43:19,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:43:19,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:19,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:43:19,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:43:19,414 INFO L87 Difference]: Start difference. First operand 2054 states and 2930 transitions. Second operand 7 states. [2020-10-14 03:43:24,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:24,075 INFO L93 Difference]: Finished difference Result 4854 states and 7025 transitions. [2020-10-14 03:43:24,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:43:24,075 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 265 [2020-10-14 03:43:24,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:24,095 INFO L225 Difference]: With dead ends: 4854 [2020-10-14 03:43:24,096 INFO L226 Difference]: Without dead ends: 2806 [2020-10-14 03:43:24,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:43:24,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2020-10-14 03:43:24,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2780. [2020-10-14 03:43:24,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2780 states. [2020-10-14 03:43:24,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 3892 transitions. [2020-10-14 03:43:24,192 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 3892 transitions. Word has length 265 [2020-10-14 03:43:24,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:24,194 INFO L479 AbstractCegarLoop]: Abstraction has 2780 states and 3892 transitions. [2020-10-14 03:43:24,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:43:24,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 3892 transitions. [2020-10-14 03:43:24,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-14 03:43:24,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:24,203 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:24,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:43:24,203 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:24,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:24,204 INFO L82 PathProgramCache]: Analyzing trace with hash 320539708, now seen corresponding path program 1 times [2020-10-14 03:43:24,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:24,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [123747252] [2020-10-14 03:43:24,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:24,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:24,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:24,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:25,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:25,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:25,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:25,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:27,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:28,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:29,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:29,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-14 03:43:29,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 03:43:29,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 03:43:29,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:29,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:29,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:29,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 03:43:29,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:43:29,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:29,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:29,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:29,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:29,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:29,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:29,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:43:29,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:29,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:29,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:29,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:29,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:29,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:29,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:29,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:29,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:29,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:43:29,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:29,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 03:43:29,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:29,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:29,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:29,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:29,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:43:29,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:29,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:43:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:29,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:29,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:29,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:43:29,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:29,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 03:43:29,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:29,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:29,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:29,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:29,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 03:43:29,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:29,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-10-14 03:43:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:29,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:29,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:29,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:43:29,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:29,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:43:29,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:29,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:29,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:29,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 03:43:29,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:29,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:29,808 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 147 proven. 73 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-14 03:43:29,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [123747252] [2020-10-14 03:43:29,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:29,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:43:29,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788647137] [2020-10-14 03:43:29,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:43:29,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:29,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:43:29,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:43:29,813 INFO L87 Difference]: Start difference. First operand 2780 states and 3892 transitions. Second operand 7 states. [2020-10-14 03:43:34,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:34,262 INFO L93 Difference]: Finished difference Result 7294 states and 10474 transitions. [2020-10-14 03:43:34,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:43:34,263 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 276 [2020-10-14 03:43:34,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:34,293 INFO L225 Difference]: With dead ends: 7294 [2020-10-14 03:43:34,293 INFO L226 Difference]: Without dead ends: 4520 [2020-10-14 03:43:34,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:43:34,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4520 states. [2020-10-14 03:43:34,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4520 to 3138. [2020-10-14 03:43:34,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3138 states. [2020-10-14 03:43:34,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3138 states to 3138 states and 4397 transitions. [2020-10-14 03:43:34,411 INFO L78 Accepts]: Start accepts. Automaton has 3138 states and 4397 transitions. Word has length 276 [2020-10-14 03:43:34,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:34,411 INFO L479 AbstractCegarLoop]: Abstraction has 3138 states and 4397 transitions. [2020-10-14 03:43:34,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:43:34,411 INFO L276 IsEmpty]: Start isEmpty. Operand 3138 states and 4397 transitions. [2020-10-14 03:43:34,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2020-10-14 03:43:34,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:34,418 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:43:34,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:43:34,419 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:34,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:34,419 INFO L82 PathProgramCache]: Analyzing trace with hash -2110542054, now seen corresponding path program 1 times [2020-10-14 03:43:34,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:34,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638024819] [2020-10-14 03:43:34,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:34,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:34,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:35,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:35,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:36,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:39,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:39,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 360 [2020-10-14 03:43:39,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:43:39,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-14 03:43:39,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:39,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:39,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:43:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:43:39,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:39,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:39,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:39,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:39,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:39,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:39,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:43:39,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:39,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:39,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:39,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:39,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:39,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:39,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:39,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:39,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:39,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:43:39,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:39,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 03:43:39,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:39,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:43:39,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:39,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:43:39,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:39,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:39,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:39,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:43:39,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:39,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 03:43:39,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:39,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:39,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:39,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:43:39,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:40,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2020-10-14 03:43:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:40,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:40,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:40,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:43:40,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:40,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:43:40,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:40,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:40,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:40,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 03:43:40,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:40,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 164 proven. 73 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-14 03:43:40,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638024819] [2020-10-14 03:43:40,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:40,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:43:40,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082117448] [2020-10-14 03:43:40,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:43:40,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:40,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:43:40,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:43:40,277 INFO L87 Difference]: Start difference. First operand 3138 states and 4397 transitions. Second operand 8 states. [2020-10-14 03:43:44,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:44,817 INFO L93 Difference]: Finished difference Result 7329 states and 10241 transitions. [2020-10-14 03:43:44,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:43:44,818 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 346 [2020-10-14 03:43:44,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:44,838 INFO L225 Difference]: With dead ends: 7329 [2020-10-14 03:43:44,839 INFO L226 Difference]: Without dead ends: 4197 [2020-10-14 03:43:44,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:43:44,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4197 states. [2020-10-14 03:43:44,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4197 to 3834. [2020-10-14 03:43:44,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3834 states. [2020-10-14 03:43:44,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3834 states to 3834 states and 4926 transitions. [2020-10-14 03:43:44,955 INFO L78 Accepts]: Start accepts. Automaton has 3834 states and 4926 transitions. Word has length 346 [2020-10-14 03:43:44,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:44,956 INFO L479 AbstractCegarLoop]: Abstraction has 3834 states and 4926 transitions. [2020-10-14 03:43:44,956 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:43:44,957 INFO L276 IsEmpty]: Start isEmpty. Operand 3834 states and 4926 transitions. [2020-10-14 03:43:44,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2020-10-14 03:43:44,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:44,972 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 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 03:43:44,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:43:44,972 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:44,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:44,973 INFO L82 PathProgramCache]: Analyzing trace with hash -759287280, now seen corresponding path program 1 times [2020-10-14 03:43:44,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:44,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [800269069] [2020-10-14 03:43:44,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:45,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:45,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:45,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:45,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:48,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:48,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:50,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:50,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 491 [2020-10-14 03:43:50,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:43:50,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 03:43:50,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:50,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:50,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:50,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 241 [2020-10-14 03:43:50,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:43:50,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:50,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:43:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:50,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:50,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:50,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:43:50,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:50,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:43:50,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:50,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:50,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:50,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:50,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:50,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:50,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:43:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:50,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:50,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:50,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:43:50,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:50,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:43:50,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:50,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:50,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:50,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:50,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:50,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:50,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:43:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:50,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:50,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:50,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:43:50,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:50,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 03:43:50,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:50,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:50,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:43:50,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:43:50,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 03:43:50,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:50,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-14 03:43:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:50,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:50,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:50,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:43:50,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:50,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 03:43:50,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:50,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:50,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:43:50,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:43:50,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:43:50,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:43:50,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2020-10-14 03:43:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:50,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:50,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:43:50,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:43:50,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:43:50,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:43:50,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:43:50,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:43:50,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:43:50,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 03:43:50,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:43:50,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:43:50,836 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 320 proven. 73 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2020-10-14 03:43:50,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [800269069] [2020-10-14 03:43:50,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:43:50,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:43:50,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577760771] [2020-10-14 03:43:50,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:43:50,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:43:50,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:43:50,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:43:50,839 INFO L87 Difference]: Start difference. First operand 3834 states and 4926 transitions. Second operand 8 states. [2020-10-14 03:43:56,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:43:56,311 INFO L93 Difference]: Finished difference Result 9092 states and 11865 transitions. [2020-10-14 03:43:56,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:43:56,312 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 475 [2020-10-14 03:43:56,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:43:56,336 INFO L225 Difference]: With dead ends: 9092 [2020-10-14 03:43:56,337 INFO L226 Difference]: Without dead ends: 5264 [2020-10-14 03:43:56,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-14 03:43:56,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5264 states. [2020-10-14 03:43:56,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5264 to 5245. [2020-10-14 03:43:56,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5245 states. [2020-10-14 03:43:56,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5245 states to 5245 states and 6700 transitions. [2020-10-14 03:43:56,470 INFO L78 Accepts]: Start accepts. Automaton has 5245 states and 6700 transitions. Word has length 475 [2020-10-14 03:43:56,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:43:56,471 INFO L479 AbstractCegarLoop]: Abstraction has 5245 states and 6700 transitions. [2020-10-14 03:43:56,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:43:56,471 INFO L276 IsEmpty]: Start isEmpty. Operand 5245 states and 6700 transitions. [2020-10-14 03:43:56,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2020-10-14 03:43:56,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:43:56,493 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:43:56,494 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:43:56,494 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:43:56,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:43:56,494 INFO L82 PathProgramCache]: Analyzing trace with hash -632928196, now seen corresponding path program 1 times [2020-10-14 03:43:56,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:43:56,495 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [847158710] [2020-10-14 03:43:56,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:43:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:43:56,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:56,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:57,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:58,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:43:59,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:01,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:01,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 627 [2020-10-14 03:44:01,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:44:01,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 03:44:01,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:01,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:01,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:01,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 448 [2020-10-14 03:44:01,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-10-14 03:44:01,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:01,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:01,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:01,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:01,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:01,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:01,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:44:01,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:01,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:01,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:01,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:01,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:01,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:01,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:01,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:01,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:01,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:44:01,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:01,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 03:44:01,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:01,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:01,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:01,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:01,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:01,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:44:01,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:44:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:01,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:01,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:01,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:44:01,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:01,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 03:44:01,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:01,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:01,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:01,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:01,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:01,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:01,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:44:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:02,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:02,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:02,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:44:02,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:02,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:44:02,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:02,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:02,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:02,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:02,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:44:02,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:02,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-14 03:44:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:02,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:02,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:02,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:44:02,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:02,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 03:44:02,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:02,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:02,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:02,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:02,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-14 03:44:02,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:02,480 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 419 proven. 2 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-10-14 03:44:02,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [847158710] [2020-10-14 03:44:02,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:02,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:02,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031297540] [2020-10-14 03:44:02,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:02,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:02,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:02,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:02,483 INFO L87 Difference]: Start difference. First operand 5245 states and 6700 transitions. Second operand 7 states. [2020-10-14 03:44:08,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:08,112 INFO L93 Difference]: Finished difference Result 14589 states and 18731 transitions. [2020-10-14 03:44:08,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:44:08,113 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 611 [2020-10-14 03:44:08,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:08,146 INFO L225 Difference]: With dead ends: 14589 [2020-10-14 03:44:08,146 INFO L226 Difference]: Without dead ends: 8272 [2020-10-14 03:44:08,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:44:08,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8272 states. [2020-10-14 03:44:08,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8272 to 6910. [2020-10-14 03:44:08,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6910 states. [2020-10-14 03:44:08,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6910 states to 6910 states and 7675 transitions. [2020-10-14 03:44:08,318 INFO L78 Accepts]: Start accepts. Automaton has 6910 states and 7675 transitions. Word has length 611 [2020-10-14 03:44:08,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:08,320 INFO L479 AbstractCegarLoop]: Abstraction has 6910 states and 7675 transitions. [2020-10-14 03:44:08,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:08,320 INFO L276 IsEmpty]: Start isEmpty. Operand 6910 states and 7675 transitions. [2020-10-14 03:44:08,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2020-10-14 03:44:08,343 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:08,344 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:44:08,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:44:08,344 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:08,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:08,345 INFO L82 PathProgramCache]: Analyzing trace with hash 36073813, now seen corresponding path program 1 times [2020-10-14 03:44:08,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:08,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1845279769] [2020-10-14 03:44:08,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:08,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:08,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:08,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:08,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:09,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:13,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:13,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 666 [2020-10-14 03:44:13,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:44:13,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 03:44:13,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:13,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:13,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:13,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 448 [2020-10-14 03:44:13,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 191 [2020-10-14 03:44:13,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:13,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:13,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:13,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:13,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:13,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:13,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:44:13,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:13,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:13,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:13,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:13,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:13,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:13,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:13,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:13,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:13,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:44:13,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:13,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:44:13,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:13,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:13,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:13,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:44:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:13,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:13,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:13,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:44:13,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:13,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 03:44:13,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:13,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:13,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:13,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:13,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:13,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:13,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:44:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:13,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:13,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:13,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:44:13,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:13,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:44:13,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:13,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:13,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:13,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:13,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:44:13,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:13,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-14 03:44:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:13,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:13,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:13,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:44:13,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:13,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 03:44:13,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:13,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:13,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:13,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:13,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 189 [2020-10-14 03:44:13,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:14,227 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 458 proven. 2 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2020-10-14 03:44:14,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1845279769] [2020-10-14 03:44:14,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:14,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:14,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12727162] [2020-10-14 03:44:14,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:14,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:14,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:14,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:14,229 INFO L87 Difference]: Start difference. First operand 6910 states and 7675 transitions. Second operand 7 states. [2020-10-14 03:44:17,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:17,847 INFO L93 Difference]: Finished difference Result 17031 states and 19570 transitions. [2020-10-14 03:44:17,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:44:17,854 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 650 [2020-10-14 03:44:17,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:17,889 INFO L225 Difference]: With dead ends: 17031 [2020-10-14 03:44:17,889 INFO L226 Difference]: Without dead ends: 10127 [2020-10-14 03:44:17,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:44:17,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10127 states. [2020-10-14 03:44:18,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10127 to 9646. [2020-10-14 03:44:18,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9646 states. [2020-10-14 03:44:18,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9646 states to 9646 states and 10656 transitions. [2020-10-14 03:44:18,154 INFO L78 Accepts]: Start accepts. Automaton has 9646 states and 10656 transitions. Word has length 650 [2020-10-14 03:44:18,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:18,155 INFO L479 AbstractCegarLoop]: Abstraction has 9646 states and 10656 transitions. [2020-10-14 03:44:18,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:18,156 INFO L276 IsEmpty]: Start isEmpty. Operand 9646 states and 10656 transitions. [2020-10-14 03:44:18,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2020-10-14 03:44:18,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:18,173 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:44:18,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:44:18,174 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:18,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:18,174 INFO L82 PathProgramCache]: Analyzing trace with hash 1172415865, now seen corresponding path program 1 times [2020-10-14 03:44:18,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:18,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780339315] [2020-10-14 03:44:18,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:18,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:18,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:18,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:18,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:19,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:23,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:23,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 728 [2020-10-14 03:44:23,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:44:23,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 03:44:23,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:23,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:23,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:23,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:44:23,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:44:23,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:23,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:23,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:23,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:23,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:23,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:23,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:44:23,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:23,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:23,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:23,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:23,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:23,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:23,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:23,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:23,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:23,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:44:23,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:23,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:44:23,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:23,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:23,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:23,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:23,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:23,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:23,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:44:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:23,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:23,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:23,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:44:23,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:23,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:44:23,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:23,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:23,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:23,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:23,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:44:23,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:23,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:44:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:23,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:23,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:23,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:44:23,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:23,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:44:23,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:23,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:23,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:23,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:23,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:44:23,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:23,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 442 [2020-10-14 03:44:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:23,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:23,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:23,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:44:23,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:23,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 03:44:23,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:23,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:23,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 03:44:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:23,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:24,288 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 276 proven. 114 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2020-10-14 03:44:24,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780339315] [2020-10-14 03:44:24,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:24,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:24,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31631620] [2020-10-14 03:44:24,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:24,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:24,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:24,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:24,291 INFO L87 Difference]: Start difference. First operand 9646 states and 10656 transitions. Second operand 7 states. [2020-10-14 03:44:27,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:27,947 INFO L93 Difference]: Finished difference Result 24217 states and 27514 transitions. [2020-10-14 03:44:27,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:44:27,948 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 712 [2020-10-14 03:44:27,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:27,998 INFO L225 Difference]: With dead ends: 24217 [2020-10-14 03:44:27,998 INFO L226 Difference]: Without dead ends: 14234 [2020-10-14 03:44:28,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:44:28,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14234 states. [2020-10-14 03:44:28,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14234 to 14056. [2020-10-14 03:44:28,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14056 states. [2020-10-14 03:44:28,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14056 states to 14056 states and 15385 transitions. [2020-10-14 03:44:28,400 INFO L78 Accepts]: Start accepts. Automaton has 14056 states and 15385 transitions. Word has length 712 [2020-10-14 03:44:28,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:28,402 INFO L479 AbstractCegarLoop]: Abstraction has 14056 states and 15385 transitions. [2020-10-14 03:44:28,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:28,402 INFO L276 IsEmpty]: Start isEmpty. Operand 14056 states and 15385 transitions. [2020-10-14 03:44:28,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 741 [2020-10-14 03:44:28,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:28,432 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:44:28,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:44:28,433 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:28,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:28,434 INFO L82 PathProgramCache]: Analyzing trace with hash -732407201, now seen corresponding path program 1 times [2020-10-14 03:44:28,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:28,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861941867] [2020-10-14 03:44:28,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:28,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:28,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:28,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:29,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:33,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:33,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 756 [2020-10-14 03:44:33,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:44:33,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 03:44:33,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:33,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:33,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:33,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:44:33,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:44:33,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:33,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:33,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:33,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:33,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:33,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:33,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:44:33,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:33,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:33,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:33,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:33,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:33,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:44:33,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:33,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:33,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:33,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:44:33,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:33,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:44:33,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:33,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:33,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:33,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:33,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:33,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:44:33,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:44:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:33,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:33,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:33,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:44:33,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:33,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:44:33,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:33,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:33,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:33,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:33,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:44:33,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:33,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:44:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:33,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:33,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:33,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:44:33,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:33,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 03:44:33,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:33,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:33,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:33,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:33,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:44:33,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:34,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:44:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:34,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:34,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:34,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:44:34,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:34,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 03:44:34,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:34,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:34,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:34,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 03:44:34,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:34,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:44:34,484 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 304 proven. 143 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2020-10-14 03:44:34,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861941867] [2020-10-14 03:44:34,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:34,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:34,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035121548] [2020-10-14 03:44:34,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:34,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:34,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:34,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:34,486 INFO L87 Difference]: Start difference. First operand 14056 states and 15385 transitions. Second operand 7 states. [2020-10-14 03:44:38,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:38,733 INFO L93 Difference]: Finished difference Result 32406 states and 36691 transitions. [2020-10-14 03:44:38,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:44:38,733 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 740 [2020-10-14 03:44:38,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:38,791 INFO L225 Difference]: With dead ends: 32406 [2020-10-14 03:44:38,791 INFO L226 Difference]: Without dead ends: 18356 [2020-10-14 03:44:38,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:44:38,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18356 states. [2020-10-14 03:44:39,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18356 to 17789. [2020-10-14 03:44:39,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17789 states. [2020-10-14 03:44:39,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17789 states to 17789 states and 19475 transitions. [2020-10-14 03:44:39,133 INFO L78 Accepts]: Start accepts. Automaton has 17789 states and 19475 transitions. Word has length 740 [2020-10-14 03:44:39,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:39,134 INFO L479 AbstractCegarLoop]: Abstraction has 17789 states and 19475 transitions. [2020-10-14 03:44:39,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:39,134 INFO L276 IsEmpty]: Start isEmpty. Operand 17789 states and 19475 transitions. [2020-10-14 03:44:39,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 767 [2020-10-14 03:44:39,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:39,159 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:44:39,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:44:39,159 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:39,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:39,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1549713781, now seen corresponding path program 1 times [2020-10-14 03:44:39,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:39,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177125123] [2020-10-14 03:44:39,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:39,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:39,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:39,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:39,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:40,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:44,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:44,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 782 [2020-10-14 03:44:44,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:44:44,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-14 03:44:44,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:44,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:44,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:44,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:44:44,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:44:44,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:44,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:44,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:44,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:44,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:44,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:44,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:44:44,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:44,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:44,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:44,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:44,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:44,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:44,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:44,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:44,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:44,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:44:44,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:44,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:44:44,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:44,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:44,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:44,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:44,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:44,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:44,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:44:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:44,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:44,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:44,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:44:44,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:44,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:44:44,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:44,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:44,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:44,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:44,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:44:44,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:44,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:44:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:44,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:44,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:44,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:44:44,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:44,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 03:44:44,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:44,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:44,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:44,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:44,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:44:44,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:44,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-14 03:44:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:44,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:44,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:44,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:44:44,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:44,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:44:44,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:44,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:44,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:44,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 03:44:44,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:44,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:45,100 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 330 proven. 143 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2020-10-14 03:44:45,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1177125123] [2020-10-14 03:44:45,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:45,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:45,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934601310] [2020-10-14 03:44:45,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:45,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:45,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:45,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:45,103 INFO L87 Difference]: Start difference. First operand 17789 states and 19475 transitions. Second operand 7 states. [2020-10-14 03:44:51,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:44:51,866 INFO L93 Difference]: Finished difference Result 39990 states and 44110 transitions. [2020-10-14 03:44:51,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:44:51,867 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 766 [2020-10-14 03:44:51,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:44:51,934 INFO L225 Difference]: With dead ends: 39990 [2020-10-14 03:44:51,935 INFO L226 Difference]: Without dead ends: 22207 [2020-10-14 03:44:51,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:44:51,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22207 states. [2020-10-14 03:44:52,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22207 to 21862. [2020-10-14 03:44:52,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21862 states. [2020-10-14 03:44:52,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21862 states to 21862 states and 24126 transitions. [2020-10-14 03:44:52,330 INFO L78 Accepts]: Start accepts. Automaton has 21862 states and 24126 transitions. Word has length 766 [2020-10-14 03:44:52,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:44:52,331 INFO L479 AbstractCegarLoop]: Abstraction has 21862 states and 24126 transitions. [2020-10-14 03:44:52,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:44:52,331 INFO L276 IsEmpty]: Start isEmpty. Operand 21862 states and 24126 transitions. [2020-10-14 03:44:52,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 797 [2020-10-14 03:44:52,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:44:52,373 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:44:52,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:44:52,374 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:44:52,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:44:52,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1685463377, now seen corresponding path program 1 times [2020-10-14 03:44:52,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:44:52,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338021354] [2020-10-14 03:44:52,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:44:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:52,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:52,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:52,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:52,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:53,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:57,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:57,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 812 [2020-10-14 03:44:57,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:44:57,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-14 03:44:57,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:57,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:57,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:57,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:44:57,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:44:57,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:57,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:44:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:57,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:57,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:57,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:44:57,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:57,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:44:57,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:57,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:57,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:57,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:44:57,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:57,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:57,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:57,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:44:57,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:57,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:44:57,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:57,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:57,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:57,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:57,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:57,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:57,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:44:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:57,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:57,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:57,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:44:57,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:57,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:44:57,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:57,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:57,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:44:57,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:44:57,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:44:57,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:57,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:44:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:57,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:58,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:58,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:44:58,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:58,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-14 03:44:58,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:58,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:58,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:44:58,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:44:58,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:44:58,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:44:58,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2020-10-14 03:44:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:44:58,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:44:58,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:44:58,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:44:58,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:44:58,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-14 03:44:58,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:44:58,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:44:58,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:44:58,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 03:44:58,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:44:58,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:44:59,125 INFO L134 CoverageAnalysis]: Checked inductivity of 916 backedges. 409 proven. 187 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2020-10-14 03:44:59,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338021354] [2020-10-14 03:44:59,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:44:59,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:44:59,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824467696] [2020-10-14 03:44:59,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:44:59,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:44:59,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:44:59,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:44:59,127 INFO L87 Difference]: Start difference. First operand 21862 states and 24126 transitions. Second operand 7 states. [2020-10-14 03:45:03,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:03,263 INFO L93 Difference]: Finished difference Result 43985 states and 49638 transitions. [2020-10-14 03:45:03,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:45:03,264 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 796 [2020-10-14 03:45:03,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:03,326 INFO L225 Difference]: With dead ends: 43985 [2020-10-14 03:45:03,327 INFO L226 Difference]: Without dead ends: 22466 [2020-10-14 03:45:03,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 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 03:45:03,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22466 states. [2020-10-14 03:45:03,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22466 to 21530. [2020-10-14 03:45:03,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21530 states. [2020-10-14 03:45:03,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21530 states to 21530 states and 23759 transitions. [2020-10-14 03:45:03,738 INFO L78 Accepts]: Start accepts. Automaton has 21530 states and 23759 transitions. Word has length 796 [2020-10-14 03:45:03,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:03,739 INFO L479 AbstractCegarLoop]: Abstraction has 21530 states and 23759 transitions. [2020-10-14 03:45:03,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:45:03,739 INFO L276 IsEmpty]: Start isEmpty. Operand 21530 states and 23759 transitions. [2020-10-14 03:45:03,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2020-10-14 03:45:03,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:03,769 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:45:03,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:45:03,769 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:03,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:03,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1042875410, now seen corresponding path program 1 times [2020-10-14 03:45:03,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:03,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333803844] [2020-10-14 03:45:03,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:03,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:04,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:04,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:04,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:04,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:08,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:08,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 813 [2020-10-14 03:45:08,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:45:08,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-14 03:45:08,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:08,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:08,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:08,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:45:08,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:45:08,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:09,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:09,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:09,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:09,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:09,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:09,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:45:09,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:09,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:09,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:09,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:09,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:09,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:09,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:09,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:45:09,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:09,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:45:09,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:09,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:09,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:09,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:09,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:09,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:09,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:45:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:09,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:09,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:09,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:45:09,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:09,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:45:09,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:09,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:09,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:45:09,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:09,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:45:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:09,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:09,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:09,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:45:09,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:09,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-14 03:45:09,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:09,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:09,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:09,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:09,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:45:09,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:09,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2020-10-14 03:45:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:09,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:09,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:09,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:45:09,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:09,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:45:09,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:09,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:09,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:09,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 03:45:09,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:09,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:10,120 INFO L134 CoverageAnalysis]: Checked inductivity of 919 backedges. 410 proven. 187 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2020-10-14 03:45:10,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333803844] [2020-10-14 03:45:10,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:10,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:10,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579106611] [2020-10-14 03:45:10,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:10,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:10,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:10,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:10,123 INFO L87 Difference]: Start difference. First operand 21530 states and 23759 transitions. Second operand 7 states. [2020-10-14 03:45:16,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:16,278 INFO L93 Difference]: Finished difference Result 43324 states and 48948 transitions. [2020-10-14 03:45:16,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:45:16,279 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 797 [2020-10-14 03:45:16,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:16,346 INFO L225 Difference]: With dead ends: 43324 [2020-10-14 03:45:16,347 INFO L226 Difference]: Without dead ends: 22137 [2020-10-14 03:45:16,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:45:16,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22137 states. [2020-10-14 03:45:16,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22137 to 21871. [2020-10-14 03:45:16,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21871 states. [2020-10-14 03:45:16,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21871 states to 21871 states and 24083 transitions. [2020-10-14 03:45:16,777 INFO L78 Accepts]: Start accepts. Automaton has 21871 states and 24083 transitions. Word has length 797 [2020-10-14 03:45:16,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:16,778 INFO L479 AbstractCegarLoop]: Abstraction has 21871 states and 24083 transitions. [2020-10-14 03:45:16,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:45:16,778 INFO L276 IsEmpty]: Start isEmpty. Operand 21871 states and 24083 transitions. [2020-10-14 03:45:16,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2020-10-14 03:45:16,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:16,802 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:45:16,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:45:16,802 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:16,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:16,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1078480603, now seen corresponding path program 1 times [2020-10-14 03:45:16,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:16,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833881663] [2020-10-14 03:45:16,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:16,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:17,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:17,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:17,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:18,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:21,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:21,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 838 [2020-10-14 03:45:21,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:45:21,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 03:45:21,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:21,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:21,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:21,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:45:21,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:45:21,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:22,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:22,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:22,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:22,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:22,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:22,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:45:22,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:22,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:22,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:22,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:22,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:22,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:22,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:22,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:22,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:22,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:45:22,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:22,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:45:22,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:22,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:22,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:22,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:22,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:22,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:22,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:45:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:22,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:22,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:22,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:45:22,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:22,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:45:22,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:22,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:22,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:22,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:22,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:45:22,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:22,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:45:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:22,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:22,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:22,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:45:22,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:22,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-14 03:45:22,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:22,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:22,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:22,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:22,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:45:22,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:22,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 614 [2020-10-14 03:45:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:23,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:23,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:23,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:45:23,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:23,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 03:45:23,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:23,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:23,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:23,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 03:45:23,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:23,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:23,888 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 435 proven. 187 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2020-10-14 03:45:23,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833881663] [2020-10-14 03:45:23,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:23,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:45:23,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588129129] [2020-10-14 03:45:23,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:45:23,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:23,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:45:23,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:45:23,890 INFO L87 Difference]: Start difference. First operand 21871 states and 24083 transitions. Second operand 8 states. [2020-10-14 03:45:28,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:28,026 INFO L93 Difference]: Finished difference Result 45458 states and 50018 transitions. [2020-10-14 03:45:28,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:45:28,027 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 822 [2020-10-14 03:45:28,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:28,075 INFO L225 Difference]: With dead ends: 45458 [2020-10-14 03:45:28,075 INFO L226 Difference]: Without dead ends: 23930 [2020-10-14 03:45:28,102 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:45:28,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23930 states. [2020-10-14 03:45:28,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23930 to 22907. [2020-10-14 03:45:28,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22907 states. [2020-10-14 03:45:28,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22907 states to 22907 states and 25170 transitions. [2020-10-14 03:45:28,605 INFO L78 Accepts]: Start accepts. Automaton has 22907 states and 25170 transitions. Word has length 822 [2020-10-14 03:45:28,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:28,605 INFO L479 AbstractCegarLoop]: Abstraction has 22907 states and 25170 transitions. [2020-10-14 03:45:28,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:45:28,606 INFO L276 IsEmpty]: Start isEmpty. Operand 22907 states and 25170 transitions. [2020-10-14 03:45:28,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2020-10-14 03:45:28,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:28,623 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:45:28,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:45:28,624 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:28,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:28,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1949869961, now seen corresponding path program 1 times [2020-10-14 03:45:28,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:28,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [767136970] [2020-10-14 03:45:28,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:28,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:28,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:28,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:33,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:33,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 840 [2020-10-14 03:45:33,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:45:33,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-14 03:45:33,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:33,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:33,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:33,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:45:33,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-10-14 03:45:33,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:33,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:33,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:33,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:33,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:33,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:33,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:45:33,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:33,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:33,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:33,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:33,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:33,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:33,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:33,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:33,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:33,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:45:33,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:33,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 03:45:33,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:33,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:33,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:33,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:33,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:45:33,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:34,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:45:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:34,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:34,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:34,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:45:34,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:34,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 03:45:34,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:34,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:34,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:34,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:34,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-14 03:45:34,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:34,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 03:45:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:34,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:34,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:34,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:45:34,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:34,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:45:34,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:34,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:34,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:34,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 03:45:34,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:34,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:34,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-14 03:45:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:34,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:34,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:34,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:45:34,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:34,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 03:45:34,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:34,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:34,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:34,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-14 03:45:34,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:34,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:34,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 242 proven. 293 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2020-10-14 03:45:34,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [767136970] [2020-10-14 03:45:34,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:34,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:34,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160631733] [2020-10-14 03:45:34,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:34,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:34,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:34,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:34,674 INFO L87 Difference]: Start difference. First operand 22907 states and 25170 transitions. Second operand 7 states. [2020-10-14 03:45:39,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:39,555 INFO L93 Difference]: Finished difference Result 50494 states and 56684 transitions. [2020-10-14 03:45:39,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:45:39,556 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 824 [2020-10-14 03:45:39,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:39,611 INFO L225 Difference]: With dead ends: 50494 [2020-10-14 03:45:39,611 INFO L226 Difference]: Without dead ends: 27930 [2020-10-14 03:45:39,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:45:39,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27930 states. [2020-10-14 03:45:40,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27930 to 27242. [2020-10-14 03:45:40,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27242 states. [2020-10-14 03:45:40,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27242 states to 27242 states and 30631 transitions. [2020-10-14 03:45:40,111 INFO L78 Accepts]: Start accepts. Automaton has 27242 states and 30631 transitions. Word has length 824 [2020-10-14 03:45:40,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:40,112 INFO L479 AbstractCegarLoop]: Abstraction has 27242 states and 30631 transitions. [2020-10-14 03:45:40,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:45:40,112 INFO L276 IsEmpty]: Start isEmpty. Operand 27242 states and 30631 transitions. [2020-10-14 03:45:40,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2020-10-14 03:45:40,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:40,152 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:45:40,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:45:40,152 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:40,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:40,153 INFO L82 PathProgramCache]: Analyzing trace with hash -2115081391, now seen corresponding path program 1 times [2020-10-14 03:45:40,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:40,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [261718747] [2020-10-14 03:45:40,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:40,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:40,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:42,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:42,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:44,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:45,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:45,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 840 [2020-10-14 03:45:45,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:45:45,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5080 [2020-10-14 03:45:45,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:45,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:45,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:45,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 812 [2020-10-14 03:45:45,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 03:45:45,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:45,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:45,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:45,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:45,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:45,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:45,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:45:45,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:45,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:45,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:45,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:45,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:45,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:45,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:45,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:45,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:45,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:45:45,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:45,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:45:45,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:45,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:45,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:45,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:45,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:45,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:45,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:45:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:45,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:45,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:45,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:45:45,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:45,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:45:45,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:45,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:45,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:45,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:45,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:45,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:45,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:45:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:45,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:45,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:45,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:45:45,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:45,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:45:45,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:45,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:45,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:45,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:45,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:45,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:45,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:45:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:45,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:45,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:45,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:45:45,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:45,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 03:45:45,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:45,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:45,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:45,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:45,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 03:45:45,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:46,158 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 89 proven. 4 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2020-10-14 03:45:46,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [261718747] [2020-10-14 03:45:46,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:46,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:45:46,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891754697] [2020-10-14 03:45:46,160 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:45:46,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:46,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:45:46,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:45:46,160 INFO L87 Difference]: Start difference. First operand 27242 states and 30631 transitions. Second operand 5 states. [2020-10-14 03:45:49,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:45:49,269 INFO L93 Difference]: Finished difference Result 54143 states and 60916 transitions. [2020-10-14 03:45:49,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:45:49,270 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 824 [2020-10-14 03:45:49,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:45:49,329 INFO L225 Difference]: With dead ends: 54143 [2020-10-14 03:45:49,329 INFO L226 Difference]: Without dead ends: 27244 [2020-10-14 03:45:49,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:45:49,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27244 states. [2020-10-14 03:45:49,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27244 to 26901. [2020-10-14 03:45:49,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26901 states. [2020-10-14 03:45:49,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26901 states to 26901 states and 29846 transitions. [2020-10-14 03:45:49,719 INFO L78 Accepts]: Start accepts. Automaton has 26901 states and 29846 transitions. Word has length 824 [2020-10-14 03:45:49,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:45:49,720 INFO L479 AbstractCegarLoop]: Abstraction has 26901 states and 29846 transitions. [2020-10-14 03:45:49,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:45:49,720 INFO L276 IsEmpty]: Start isEmpty. Operand 26901 states and 29846 transitions. [2020-10-14 03:45:49,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1007 [2020-10-14 03:45:49,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:45:49,756 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:45:49,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:45:49,757 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:45:49,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:45:49,757 INFO L82 PathProgramCache]: Analyzing trace with hash -577112370, now seen corresponding path program 1 times [2020-10-14 03:45:49,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:45:49,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1140129678] [2020-10-14 03:45:49,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:45:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:49,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:50,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:50,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:50,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:50,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:51,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:54,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:54,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1024 [2020-10-14 03:45:54,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:45:54,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 03:45:54,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:54,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:54,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:54,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 456 [2020-10-14 03:45:54,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:45:54,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:54,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:45:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:54,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:54,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:54,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:45:54,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:54,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:45:54,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:54,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:54,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:54,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:54,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:54,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:55,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:45:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:55,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:55,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:55,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:45:55,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:55,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 03:45:55,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:55,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:55,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:55,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:55,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:55,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:55,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:45:55,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:55,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:55,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:55,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:45:55,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:55,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 03:45:55,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:55,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:55,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:45:55,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:45:55,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:45:55,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:55,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-14 03:45:55,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:55,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:55,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:55,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:45:55,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:55,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-14 03:45:55,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:55,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:55,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:45:55,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:45:55,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:45:55,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:55,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 725 [2020-10-14 03:45:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:55,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:55,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:55,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:45:55,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:55,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 03:45:55,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:55,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:55,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:55,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:45:55,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:55,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:55,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 837 [2020-10-14 03:45:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:45:55,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:45:55,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:45:55,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:45:55,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:45:55,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:45:55,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:45:55,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:45:55,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:45:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 03:45:55,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:45:55,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:45:56,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1639 backedges. 564 proven. 257 refuted. 0 times theorem prover too weak. 818 trivial. 0 not checked. [2020-10-14 03:45:56,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1140129678] [2020-10-14 03:45:56,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:45:56,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:45:56,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862292531] [2020-10-14 03:45:56,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:45:56,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:45:56,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:45:56,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:45:56,636 INFO L87 Difference]: Start difference. First operand 26901 states and 29846 transitions. Second operand 7 states. [2020-10-14 03:46:00,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:00,296 INFO L93 Difference]: Finished difference Result 53469 states and 59369 transitions. [2020-10-14 03:46:00,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:46:00,297 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1006 [2020-10-14 03:46:00,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:00,347 INFO L225 Difference]: With dead ends: 53469 [2020-10-14 03:46:00,347 INFO L226 Difference]: Without dead ends: 26911 [2020-10-14 03:46:00,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:46:00,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26911 states. [2020-10-14 03:46:00,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26911 to 26897. [2020-10-14 03:46:00,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26897 states. [2020-10-14 03:46:00,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26897 states to 26897 states and 29814 transitions. [2020-10-14 03:46:00,708 INFO L78 Accepts]: Start accepts. Automaton has 26897 states and 29814 transitions. Word has length 1006 [2020-10-14 03:46:00,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:00,709 INFO L479 AbstractCegarLoop]: Abstraction has 26897 states and 29814 transitions. [2020-10-14 03:46:00,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:00,709 INFO L276 IsEmpty]: Start isEmpty. Operand 26897 states and 29814 transitions. [2020-10-14 03:46:00,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1202 [2020-10-14 03:46:00,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:00,761 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:00,762 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:46:00,762 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:00,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:00,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1617942687, now seen corresponding path program 1 times [2020-10-14 03:46:00,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:00,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [868932568] [2020-10-14 03:46:00,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:00,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:00,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:01,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:01,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:01,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:02,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:05,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:05,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1223 [2020-10-14 03:46:05,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:46:05,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 03:46:05,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:05,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 655 [2020-10-14 03:46:05,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:46:05,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:06,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:06,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:06,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:06,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:06,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:06,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:46:06,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:06,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:06,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:06,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:06,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:06,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:06,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:06,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:06,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:06,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:46:06,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:06,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:46:06,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:06,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:06,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:06,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:46:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:06,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:06,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:06,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 03:46:06,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:06,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 03:46:06,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:06,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:06,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:06,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:06,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:06,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:06,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-10-14 03:46:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:06,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:06,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:06,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:46:06,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:06,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 03:46:06,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:06,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:06,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:06,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:06,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:06,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:06,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 03:46:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:06,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:06,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:06,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:46:06,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:06,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:46:06,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:06,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:06,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:06,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:46:06,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:06,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2020-10-14 03:46:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:06,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:06,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:06,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:46:06,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:06,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-14 03:46:06,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:06,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:06,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:06,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:06,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:46:06,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:06,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 920 [2020-10-14 03:46:07,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:07,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:07,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:07,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:46:07,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:07,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:46:07,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:07,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:07,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:07,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:46:07,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:07,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:07,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1032 [2020-10-14 03:46:07,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:07,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:07,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:07,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:46:07,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:07,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:46:07,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:07,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:07,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:07,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 03:46:07,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:07,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:07,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2843 backedges. 821 proven. 257 refuted. 0 times theorem prover too weak. 1765 trivial. 0 not checked. [2020-10-14 03:46:07,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [868932568] [2020-10-14 03:46:07,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:07,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:07,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040592386] [2020-10-14 03:46:07,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:07,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:07,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:07,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:07,927 INFO L87 Difference]: Start difference. First operand 26897 states and 29814 transitions. Second operand 7 states. [2020-10-14 03:46:11,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:11,637 INFO L93 Difference]: Finished difference Result 53804 states and 59669 transitions. [2020-10-14 03:46:11,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:46:11,638 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1201 [2020-10-14 03:46:11,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:11,687 INFO L225 Difference]: With dead ends: 53804 [2020-10-14 03:46:11,688 INFO L226 Difference]: Without dead ends: 27250 [2020-10-14 03:46:11,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:46:11,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27250 states. [2020-10-14 03:46:11,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27250 to 27238. [2020-10-14 03:46:11,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27238 states. [2020-10-14 03:46:12,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27238 states to 27238 states and 30117 transitions. [2020-10-14 03:46:12,039 INFO L78 Accepts]: Start accepts. Automaton has 27238 states and 30117 transitions. Word has length 1201 [2020-10-14 03:46:12,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:12,040 INFO L479 AbstractCegarLoop]: Abstraction has 27238 states and 30117 transitions. [2020-10-14 03:46:12,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:12,040 INFO L276 IsEmpty]: Start isEmpty. Operand 27238 states and 30117 transitions. [2020-10-14 03:46:12,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1299 [2020-10-14 03:46:12,085 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:12,085 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:12,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:46:12,086 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:12,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:12,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1654460356, now seen corresponding path program 1 times [2020-10-14 03:46:12,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:12,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143747145] [2020-10-14 03:46:12,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:12,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:12,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:12,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:13,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:17,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:17,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:17,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1320 [2020-10-14 03:46:17,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:46:17,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5278 [2020-10-14 03:46:17,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:17,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:17,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 924 [2020-10-14 03:46:17,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:46:17,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:17,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:17,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:17,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:17,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:17,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:17,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:46:17,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:17,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:17,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:17,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:17,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:17,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:17,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:17,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:17,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:17,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:46:17,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:17,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:46:17,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:17,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:17,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:17,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:46:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:17,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:17,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:17,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:46:17,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:17,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:46:17,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:17,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:17,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:17,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:17,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:17,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:17,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:46:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:17,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:17,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:17,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:46:17,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:17,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:46:17,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:17,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:17,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:17,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:17,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:17,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:17,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:46:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:17,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:17,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:17,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:46:17,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:17,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:46:17,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:17,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:17,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:17,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:17,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:17,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:18,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:46:18,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:18,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:18,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:18,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:46:18,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:18,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:46:18,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:18,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:18,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:18,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:18,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:46:18,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:18,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:46:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:18,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:18,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:18,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:46:18,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:18,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-14 03:46:18,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:18,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:18,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:18,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:18,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 03:46:18,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:18,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1129 [2020-10-14 03:46:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:18,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:18,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:18,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:46:18,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:18,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:46:18,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:18,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:18,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:18,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 03:46:18,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:18,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:19,585 INFO L134 CoverageAnalysis]: Checked inductivity of 3034 backedges. 983 proven. 148 refuted. 0 times theorem prover too weak. 1903 trivial. 0 not checked. [2020-10-14 03:46:19,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143747145] [2020-10-14 03:46:19,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:19,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:19,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854756833] [2020-10-14 03:46:19,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:19,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:19,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:19,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:19,588 INFO L87 Difference]: Start difference. First operand 27238 states and 30117 transitions. Second operand 7 states. [2020-10-14 03:46:23,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:23,983 INFO L93 Difference]: Finished difference Result 54118 states and 59889 transitions. [2020-10-14 03:46:23,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:46:23,984 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1298 [2020-10-14 03:46:23,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:24,032 INFO L225 Difference]: With dead ends: 54118 [2020-10-14 03:46:24,033 INFO L226 Difference]: Without dead ends: 26534 [2020-10-14 03:46:24,063 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 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 03:46:24,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26534 states. [2020-10-14 03:46:24,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26534 to 25842. [2020-10-14 03:46:24,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25842 states. [2020-10-14 03:46:24,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25842 states to 25842 states and 28215 transitions. [2020-10-14 03:46:24,368 INFO L78 Accepts]: Start accepts. Automaton has 25842 states and 28215 transitions. Word has length 1298 [2020-10-14 03:46:24,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:24,369 INFO L479 AbstractCegarLoop]: Abstraction has 25842 states and 28215 transitions. [2020-10-14 03:46:24,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:24,369 INFO L276 IsEmpty]: Start isEmpty. Operand 25842 states and 28215 transitions. [2020-10-14 03:46:24,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1344 [2020-10-14 03:46:24,400 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:24,400 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:24,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:46:24,401 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:24,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:24,401 INFO L82 PathProgramCache]: Analyzing trace with hash -443016464, now seen corresponding path program 1 times [2020-10-14 03:46:24,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:24,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141053026] [2020-10-14 03:46:24,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:24,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:24,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:25,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:25,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:25,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:25,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:29,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:29,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1367 [2020-10-14 03:46:29,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:46:29,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 03:46:29,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:29,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:29,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:29,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 799 [2020-10-14 03:46:29,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:46:29,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:29,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:46:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:29,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:29,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:29,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:46:29,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:29,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:46:29,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:29,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:29,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:29,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:29,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:29,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:29,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:46:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:29,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:29,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:29,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:46:29,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:29,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:46:29,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:29,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:29,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:29,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:29,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:29,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:29,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:46:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:29,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:29,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:29,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 03:46:29,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:29,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:46:29,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:29,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:29,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:29,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:29,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:29,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:29,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-10-14 03:46:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:29,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:29,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:29,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-14 03:46:29,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:29,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 03:46:29,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:29,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:29,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:29,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:29,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:29,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:29,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-14 03:46:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:29,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:29,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:29,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:46:29,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:29,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:46:29,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:29,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:29,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:29,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:29,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:29,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:46:29,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 647 [2020-10-14 03:46:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:29,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:29,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:29,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:46:29,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:29,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:46:29,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:29,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:29,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:46:29,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:46:29,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 03:46:29,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:30,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 789 [2020-10-14 03:46:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:30,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:30,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:30,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:46:30,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:30,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-14 03:46:30,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:30,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:30,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:46:30,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:46:30,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:46:30,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:30,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1062 [2020-10-14 03:46:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:30,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:30,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:30,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-14 03:46:30,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:30,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:46:30,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:30,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:30,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:30,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:46:30,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:30,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:30,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1174 [2020-10-14 03:46:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:30,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:46:30,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:46:30,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-14 03:46:30,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:46:30,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:46:30,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:46:30,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:46:30,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:46:30,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-14 03:46:30,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:46:30,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:46:31,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3779 backedges. 994 proven. 257 refuted. 0 times theorem prover too weak. 2528 trivial. 0 not checked. [2020-10-14 03:46:31,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141053026] [2020-10-14 03:46:31,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:46:31,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:46:31,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119121447] [2020-10-14 03:46:31,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:46:31,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:46:31,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:46:31,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:46:31,822 INFO L87 Difference]: Start difference. First operand 25842 states and 28215 transitions. Second operand 7 states. [2020-10-14 03:46:35,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:46:35,872 INFO L93 Difference]: Finished difference Result 52376 states and 57171 transitions. [2020-10-14 03:46:35,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:46:35,874 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1343 [2020-10-14 03:46:35,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:46:35,924 INFO L225 Difference]: With dead ends: 52376 [2020-10-14 03:46:35,924 INFO L226 Difference]: Without dead ends: 26877 [2020-10-14 03:46:35,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:46:35,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26877 states. [2020-10-14 03:46:36,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26877 to 25501. [2020-10-14 03:46:36,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25501 states. [2020-10-14 03:46:36,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25501 states to 25501 states and 27700 transitions. [2020-10-14 03:46:36,292 INFO L78 Accepts]: Start accepts. Automaton has 25501 states and 27700 transitions. Word has length 1343 [2020-10-14 03:46:36,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:46:36,293 INFO L479 AbstractCegarLoop]: Abstraction has 25501 states and 27700 transitions. [2020-10-14 03:46:36,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:46:36,293 INFO L276 IsEmpty]: Start isEmpty. Operand 25501 states and 27700 transitions. [2020-10-14 03:46:36,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1359 [2020-10-14 03:46:36,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:46:36,331 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:46:36,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 03:46:36,331 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:46:36,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:46:36,332 INFO L82 PathProgramCache]: Analyzing trace with hash 372617598, now seen corresponding path program 1 times [2020-10-14 03:46:36,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:46:36,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072065720] [2020-10-14 03:46:36,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:46:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:46:36,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking...