/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label09.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:25:11,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:25:11,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:25:11,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:25:11,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:25:11,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:25:11,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:25:11,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:25:11,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:25:11,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:25:11,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:25:11,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:25:11,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:25:11,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:25:11,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:25:11,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:25:11,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:25:11,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:25:11,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:25:11,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:25:11,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:25:11,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:25:11,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:25:11,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:25:11,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:25:11,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:25:11,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:25:11,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:25:11,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:25:11,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:25:11,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:25:11,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:25:11,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:25:11,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:25:11,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:25:11,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:25:11,977 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:25:11,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:25:11,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:25:11,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:25:11,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:25:11,980 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 22:25:12,004 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:25:12,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:25:12,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:25:12,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:25:12,007 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:25:12,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:25:12,007 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:25:12,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:25:12,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:25:12,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:25:12,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:25:12,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:25:12,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:25:12,009 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:25:12,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:25:12,009 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:25:12,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:25:12,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:25:12,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:25:12,010 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:25:12,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:25:12,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:25:12,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:25:12,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:25:12,011 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:25:12,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:25:12,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:25:12,012 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:25:12,012 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:25:12,012 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 22:25:12,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:25:12,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:25:12,402 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:25:12,403 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:25:12,404 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:25:12,405 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label09.c [2020-10-14 22:25:12,478 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c5c0f8ff/829941b8657a47f797a32867206a78a1/FLAG6b7488af2 [2020-10-14 22:25:13,330 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:25:13,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem17_label09.c [2020-10-14 22:25:13,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c5c0f8ff/829941b8657a47f797a32867206a78a1/FLAG6b7488af2 [2020-10-14 22:25:13,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c5c0f8ff/829941b8657a47f797a32867206a78a1 [2020-10-14 22:25:13,888 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:25:13,891 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:25:13,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:25:13,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:25:13,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:25:13,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:25:13" (1/1) ... [2020-10-14 22:25:13,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8021c83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:25:13, skipping insertion in model container [2020-10-14 22:25:13,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:25:13" (1/1) ... [2020-10-14 22:25:13,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:25:14,010 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:25:15,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:25:15,351 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:25:15,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:25:15,792 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:25:15,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:25:15 WrapperNode [2020-10-14 22:25:15,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:25:15,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:25:15,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:25:15,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:25:15,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:25:15" (1/1) ... [2020-10-14 22:25:15,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:25:15" (1/1) ... [2020-10-14 22:25:15,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:25:15" (1/1) ... [2020-10-14 22:25:15,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:25:15" (1/1) ... [2020-10-14 22:25:15,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:25:15" (1/1) ... [2020-10-14 22:25:16,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:25:15" (1/1) ... [2020-10-14 22:25:16,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:25:15" (1/1) ... [2020-10-14 22:25:16,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:25:16,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:25:16,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:25:16,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:25:16,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:25:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:25:16,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:25:16,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:25:16,271 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:25:16,271 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:25:16,271 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:25:16,272 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:25:16,272 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:25:16,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:25:16,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:25:16,274 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:25:16,274 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:25:16,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:25:16,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:25:23,129 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:25:23,130 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:25:23,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:25:23 BoogieIcfgContainer [2020-10-14 22:25:23,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:25:23,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:25:23,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:25:23,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:25:23,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:25:13" (1/3) ... [2020-10-14 22:25:23,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d83e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:25:23, skipping insertion in model container [2020-10-14 22:25:23,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:25:15" (2/3) ... [2020-10-14 22:25:23,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70d83e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:25:23, skipping insertion in model container [2020-10-14 22:25:23,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:25:23" (3/3) ... [2020-10-14 22:25:23,164 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem17_label09.c [2020-10-14 22:25:23,176 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:25:23,191 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:25:23,208 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:25:23,239 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:25:23,240 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:25:23,240 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:25:23,240 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:25:23,240 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:25:23,240 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:25:23,241 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:25:23,241 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:25:23,274 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states. [2020-10-14 22:25:23,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-14 22:25:23,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:25:23,283 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:25:23,284 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:25:23,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:25:23,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1387148041, now seen corresponding path program 1 times [2020-10-14 22:25:23,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:25:23,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97355193] [2020-10-14 22:25:23,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:25:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:25:23,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:25:23,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:25:23,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 22:25:23,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:25:23,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-10-14 22:25:23,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:25:23,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:25:23,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:25:23,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:25:23,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-14 22:25:23,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 22:25:23,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:25:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:25:24,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:25:24,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:25:24,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:25:24,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:25:24,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 22:25:24,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:25:24,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:25:24,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:25:24,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:25:24,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:25:24,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:25:24,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:25:24,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [97355193] [2020-10-14 22:25:24,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:25:24,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:25:24,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051311291] [2020-10-14 22:25:24,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:25:24,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:25:24,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:25:24,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:25:24,095 INFO L87 Difference]: Start difference. First operand 603 states. Second operand 4 states. [2020-10-14 22:25:35,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:25:35,079 INFO L93 Difference]: Finished difference Result 1692 states and 3091 transitions. [2020-10-14 22:25:35,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:25:35,081 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-14 22:25:35,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:25:35,112 INFO L225 Difference]: With dead ends: 1692 [2020-10-14 22:25:35,112 INFO L226 Difference]: Without dead ends: 1012 [2020-10-14 22:25:35,129 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 22:25:35,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2020-10-14 22:25:35,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1002. [2020-10-14 22:25:35,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1002 states. [2020-10-14 22:25:35,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1542 transitions. [2020-10-14 22:25:35,259 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1542 transitions. Word has length 18 [2020-10-14 22:25:35,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:25:35,260 INFO L479 AbstractCegarLoop]: Abstraction has 1002 states and 1542 transitions. [2020-10-14 22:25:35,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:25:35,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1542 transitions. [2020-10-14 22:25:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-14 22:25:35,265 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:25:35,266 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 22:25:35,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:25:35,267 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:25:35,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:25:35,267 INFO L82 PathProgramCache]: Analyzing trace with hash 73876756, now seen corresponding path program 1 times [2020-10-14 22:25:35,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:25:35,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1098933571] [2020-10-14 22:25:35,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:25:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:25:35,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:25:35,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:25:36,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:25:36,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:25:36,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 22:25:36,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:25:36,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1616 [2020-10-14 22:25:36,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:25:36,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:25:36,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:25:36,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:25:36,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:25:36,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:25:37,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:25:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:25:37,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:25:37,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:25:37,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:25:37,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:25:37,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:25:37,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:25:37,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:25:37,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:25:37,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:25:37,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:25:37,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:25:37,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:25:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:25:37,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:25:37,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:25:37,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:25:37,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:25:37,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-14 22:25:37,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:25:37,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:25:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:25:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:25:37,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 22:25:37,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:25:37,386 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:25:37,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1098933571] [2020-10-14 22:25:37,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:25:37,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 22:25:37,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953629290] [2020-10-14 22:25:37,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:25:37,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:25:37,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:25:37,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:25:37,392 INFO L87 Difference]: Start difference. First operand 1002 states and 1542 transitions. Second operand 8 states. [2020-10-14 22:25:54,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:25:54,777 INFO L93 Difference]: Finished difference Result 3827 states and 5954 transitions. [2020-10-14 22:25:54,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 22:25:54,778 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2020-10-14 22:25:54,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:25:54,798 INFO L225 Difference]: With dead ends: 3827 [2020-10-14 22:25:54,799 INFO L226 Difference]: Without dead ends: 2831 [2020-10-14 22:25:54,805 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 22:25:54,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2020-10-14 22:25:54,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2818. [2020-10-14 22:25:54,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2818 states. [2020-10-14 22:25:54,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 3657 transitions. [2020-10-14 22:25:54,936 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 3657 transitions. Word has length 89 [2020-10-14 22:25:54,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:25:54,937 INFO L479 AbstractCegarLoop]: Abstraction has 2818 states and 3657 transitions. [2020-10-14 22:25:54,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:25:54,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 3657 transitions. [2020-10-14 22:25:54,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 22:25:54,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:25:54,943 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 22:25:54,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:25:54,944 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:25:54,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:25:54,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1842646496, now seen corresponding path program 1 times [2020-10-14 22:25:54,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:25:54,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610028471] [2020-10-14 22:25:54,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:25:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:25:55,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:25:55,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:25:55,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-14 22:25:55,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:25:55,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-14 22:25:55,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:25:55,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:25:55,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:25:55,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 22:25:55,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 22:25:55,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:25:55,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:25:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:25:55,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:25:55,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:25:55,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:25:55,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:25:55,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:25:55,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:25:55,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:25:55,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:25:55,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:25:55,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:25:55,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:25:55,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:25:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:25:55,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:25:55,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:25:55,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:25:55,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:25:55,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-14 22:25:55,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:25:55,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:25:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:25:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:25:55,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 22:25:55,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:25:55,754 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:25:55,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610028471] [2020-10-14 22:25:55,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:25:55,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:25:55,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183373390] [2020-10-14 22:25:55,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:25:55,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:25:55,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:25:55,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:25:55,758 INFO L87 Difference]: Start difference. First operand 2818 states and 3657 transitions. Second operand 5 states. [2020-10-14 22:26:06,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:26:06,372 INFO L93 Difference]: Finished difference Result 6979 states and 9329 transitions. [2020-10-14 22:26:06,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:26:06,374 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2020-10-14 22:26:06,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:26:06,406 INFO L225 Difference]: With dead ends: 6979 [2020-10-14 22:26:06,406 INFO L226 Difference]: Without dead ends: 3716 [2020-10-14 22:26:06,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:26:06,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3716 states. [2020-10-14 22:26:06,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3716 to 3710. [2020-10-14 22:26:06,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3710 states. [2020-10-14 22:26:06,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3710 states to 3710 states and 4566 transitions. [2020-10-14 22:26:06,565 INFO L78 Accepts]: Start accepts. Automaton has 3710 states and 4566 transitions. Word has length 92 [2020-10-14 22:26:06,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:26:06,566 INFO L479 AbstractCegarLoop]: Abstraction has 3710 states and 4566 transitions. [2020-10-14 22:26:06,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:26:06,566 INFO L276 IsEmpty]: Start isEmpty. Operand 3710 states and 4566 transitions. [2020-10-14 22:26:06,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-14 22:26:06,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:26:06,583 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:26:06,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:26:06,586 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:26:06,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:26:06,587 INFO L82 PathProgramCache]: Analyzing trace with hash 520430725, now seen corresponding path program 1 times [2020-10-14 22:26:06,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:26:06,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [591106810] [2020-10-14 22:26:06,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:26:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:26:06,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:26:07,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:26:08,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:26:08,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-10-14 22:26:08,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:26:08,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1800 [2020-10-14 22:26:08,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:26:08,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:26:08,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:26:08,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-14 22:26:08,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:26:08,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-14 22:26:08,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:26:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:26:08,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:26:08,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:26:08,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:26:08,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:26:08,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:26:08,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:26:08,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:26:08,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:26:08,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:26:08,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:26:08,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:26:08,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:26:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:26:08,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:26:08,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:26:08,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:26:08,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:26:08,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-14 22:26:08,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:26:08,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:26:08,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:26:08,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:26:08,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:26:08,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:26:08,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 22:26:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:26:09,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:26:09,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:26:09,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 22:26:09,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:26:09,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-14 22:26:09,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:26:09,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:26:09,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:26:09,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:26:09,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 22:26:09,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:26:09,293 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:26:09,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [591106810] [2020-10-14 22:26:09,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:26:09,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:26:09,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948768173] [2020-10-14 22:26:09,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:26:09,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:26:09,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:26:09,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:26:09,297 INFO L87 Difference]: Start difference. First operand 3710 states and 4566 transitions. Second operand 7 states. [2020-10-14 22:26:25,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:26:25,824 INFO L93 Difference]: Finished difference Result 7873 states and 9923 transitions. [2020-10-14 22:26:25,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:26:25,826 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-10-14 22:26:25,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:26:25,856 INFO L225 Difference]: With dead ends: 7873 [2020-10-14 22:26:25,856 INFO L226 Difference]: Without dead ends: 4169 [2020-10-14 22:26:25,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:26:25,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4169 states. [2020-10-14 22:26:25,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4169 to 4159. [2020-10-14 22:26:25,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4159 states. [2020-10-14 22:26:25,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4159 states to 4159 states and 5047 transitions. [2020-10-14 22:26:25,995 INFO L78 Accepts]: Start accepts. Automaton has 4159 states and 5047 transitions. Word has length 178 [2020-10-14 22:26:25,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:26:25,996 INFO L479 AbstractCegarLoop]: Abstraction has 4159 states and 5047 transitions. [2020-10-14 22:26:25,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:26:25,996 INFO L276 IsEmpty]: Start isEmpty. Operand 4159 states and 5047 transitions. [2020-10-14 22:26:25,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-10-14 22:26:25,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:26:25,999 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:26:26,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:26:26,000 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:26:26,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:26:26,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1895734079, now seen corresponding path program 1 times [2020-10-14 22:26:26,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:26:26,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769861356] [2020-10-14 22:26:26,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:26:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:26:26,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:26:26,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:26:29,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:26:29,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-14 22:26:29,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:26:29,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2992 [2020-10-14 22:26:29,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:26:29,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:26:29,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 22:26:29,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:26:29,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-14 22:26:29,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:26:29,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:26:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:26:29,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:26:29,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:26:29,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:26:29,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:26:29,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:26:29,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:26:29,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:26:29,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:26:29,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:26:29,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:26:29,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:26:29,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:26:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:26:29,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:26:29,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:26:29,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:26:29,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:26:29,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-14 22:26:29,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:26:29,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:26:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:26:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:26:29,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 22:26:29,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:26:29,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 22:26:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:26:29,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:26:29,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:26:29,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:26:29,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:26:29,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 22:26:29,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:26:29,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:26:29,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:26:29,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:26:29,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:26:29,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:26:29,974 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 26 proven. 70 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:26:29,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769861356] [2020-10-14 22:26:29,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:26:29,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 22:26:29,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144151617] [2020-10-14 22:26:29,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 22:26:29,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:26:29,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 22:26:29,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:26:29,977 INFO L87 Difference]: Start difference. First operand 4159 states and 5047 transitions. Second operand 10 states. [2020-10-14 22:27:01,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:27:01,213 INFO L93 Difference]: Finished difference Result 12564 states and 15413 transitions. [2020-10-14 22:27:01,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 22:27:01,215 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 180 [2020-10-14 22:27:01,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:27:01,260 INFO L225 Difference]: With dead ends: 12564 [2020-10-14 22:27:01,261 INFO L226 Difference]: Without dead ends: 8411 [2020-10-14 22:27:01,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2020-10-14 22:27:01,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8411 states. [2020-10-14 22:27:01,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8411 to 7886. [2020-10-14 22:27:01,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7886 states. [2020-10-14 22:27:01,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7886 states to 7886 states and 9501 transitions. [2020-10-14 22:27:01,473 INFO L78 Accepts]: Start accepts. Automaton has 7886 states and 9501 transitions. Word has length 180 [2020-10-14 22:27:01,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:27:01,475 INFO L479 AbstractCegarLoop]: Abstraction has 7886 states and 9501 transitions. [2020-10-14 22:27:01,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 22:27:01,475 INFO L276 IsEmpty]: Start isEmpty. Operand 7886 states and 9501 transitions. [2020-10-14 22:27:01,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-14 22:27:01,481 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:27:01,481 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:27:01,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:27:01,482 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:27:01,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:27:01,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1506290578, now seen corresponding path program 1 times [2020-10-14 22:27:01,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:27:01,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114875864] [2020-10-14 22:27:01,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:27:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:27:01,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:02,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:02,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:06,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:27:06,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 272 [2020-10-14 22:27:06,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:27:06,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 22:27:06,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:27:06,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:27:06,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 22:27:06,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:27:06,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-14 22:27:06,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:27:06,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:27:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:27:06,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:06,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:27:06,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:27:06,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:27:06,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:27:06,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:27:06,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:27:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:27:06,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:27:06,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:27:06,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:27:06,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:27:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:27:06,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:07,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:27:07,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:27:07,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:27:07,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-14 22:27:07,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:27:07,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:27:07,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:27:07,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:27:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 22:27:07,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:27:07,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 22:27:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:27:07,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:07,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:27:07,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 22:27:07,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:27:07,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-14 22:27:07,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:27:07,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:27:07,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:27:07,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:27:07,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 22:27:07,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:27:07,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-10-14 22:27:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:27:07,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:07,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:27:07,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:27:07,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:27:07,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 22:27:07,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:27:07,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:27:07,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:27:07,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 22:27:07,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:27:07,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:27:07,563 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 38 proven. 145 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-10-14 22:27:07,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114875864] [2020-10-14 22:27:07,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:27:07,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 22:27:07,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229215727] [2020-10-14 22:27:07,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 22:27:07,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:27:07,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 22:27:07,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 22:27:07,567 INFO L87 Difference]: Start difference. First operand 7886 states and 9501 transitions. Second operand 9 states. [2020-10-14 22:27:07,722 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2020-10-14 22:27:32,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:27:32,351 INFO L93 Difference]: Finished difference Result 22387 states and 28594 transitions. [2020-10-14 22:27:32,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 22:27:32,353 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 258 [2020-10-14 22:27:32,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:27:32,455 INFO L225 Difference]: With dead ends: 22387 [2020-10-14 22:27:32,455 INFO L226 Difference]: Without dead ends: 14056 [2020-10-14 22:27:32,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2020-10-14 22:27:32,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14056 states. [2020-10-14 22:27:32,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14056 to 13805. [2020-10-14 22:27:32,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13805 states. [2020-10-14 22:27:33,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13805 states to 13805 states and 16043 transitions. [2020-10-14 22:27:33,044 INFO L78 Accepts]: Start accepts. Automaton has 13805 states and 16043 transitions. Word has length 258 [2020-10-14 22:27:33,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:27:33,046 INFO L479 AbstractCegarLoop]: Abstraction has 13805 states and 16043 transitions. [2020-10-14 22:27:33,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 22:27:33,046 INFO L276 IsEmpty]: Start isEmpty. Operand 13805 states and 16043 transitions. [2020-10-14 22:27:33,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-10-14 22:27:33,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:27:33,054 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-14 22:27:33,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:27:33,055 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:27:33,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:27:33,056 INFO L82 PathProgramCache]: Analyzing trace with hash -991102241, now seen corresponding path program 1 times [2020-10-14 22:27:33,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:27:33,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [624447608] [2020-10-14 22:27:33,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:27:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:27:33,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:33,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:34,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:34,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:38,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:27:38,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 303 [2020-10-14 22:27:38,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:27:38,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5076 [2020-10-14 22:27:38,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:27:38,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:27:38,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:27:38,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-14 22:27:38,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:27:38,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:27:38,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:27:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:27:38,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:38,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:27:38,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:27:38,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:27:38,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:27:38,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:27:38,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:27:38,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:27:38,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:27:38,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:27:38,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:27:38,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:27:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:27:38,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:38,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:27:38,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:27:38,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:27:38,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 206 [2020-10-14 22:27:38,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:27:38,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:27:38,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:27:38,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:27:38,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:27:38,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:27:38,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 22:27:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:27:38,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:38,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:27:38,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 22:27:38,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:27:38,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-14 22:27:38,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:27:38,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:27:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:27:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:27:38,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:27:38,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:27:39,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-14 22:27:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:27:39,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:39,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:27:39,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:27:39,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:27:39,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:27:39,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:27:39,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:27:39,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:27:39,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 22:27:39,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:27:39,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:27:39,410 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 121 proven. 74 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-14 22:27:39,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [624447608] [2020-10-14 22:27:39,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:27:39,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:27:39,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340298896] [2020-10-14 22:27:39,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:27:39,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:27:39,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:27:39,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:27:39,421 INFO L87 Difference]: Start difference. First operand 13805 states and 16043 transitions. Second operand 7 states. [2020-10-14 22:27:57,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:27:57,410 INFO L93 Difference]: Finished difference Result 28651 states and 33434 transitions. [2020-10-14 22:27:57,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:27:57,415 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 289 [2020-10-14 22:27:57,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:27:57,479 INFO L225 Difference]: With dead ends: 28651 [2020-10-14 22:27:57,480 INFO L226 Difference]: Without dead ends: 15720 [2020-10-14 22:27:57,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:27:57,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15720 states. [2020-10-14 22:27:57,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15720 to 15624. [2020-10-14 22:27:57,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15624 states. [2020-10-14 22:27:57,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15624 states to 15624 states and 18058 transitions. [2020-10-14 22:27:57,875 INFO L78 Accepts]: Start accepts. Automaton has 15624 states and 18058 transitions. Word has length 289 [2020-10-14 22:27:57,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:27:57,876 INFO L479 AbstractCegarLoop]: Abstraction has 15624 states and 18058 transitions. [2020-10-14 22:27:57,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:27:57,877 INFO L276 IsEmpty]: Start isEmpty. Operand 15624 states and 18058 transitions. [2020-10-14 22:27:57,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-10-14 22:27:57,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:27:57,885 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:27:57,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:27:57,885 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:27:57,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:27:57,886 INFO L82 PathProgramCache]: Analyzing trace with hash -729869686, now seen corresponding path program 1 times [2020-10-14 22:27:57,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:27:57,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434001450] [2020-10-14 22:27:57,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:27:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:27:58,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:58,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:59,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:27:59,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-14 22:27:59,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:27:59,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1840 [2020-10-14 22:27:59,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:27:59,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:27:59,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:27:59,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-10-14 22:27:59,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-14 22:27:59,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:27:59,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:27:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:27:59,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:27:59,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:27:59,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:27:59,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:27:59,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:27:59,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:27:59,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:27:59,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:27:59,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:27:59,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:27:59,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:28:00,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:28:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:28:00,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:00,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:28:00,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:28:00,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:28:00,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:28:00,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:28:00,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:28:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:28:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:28:00,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:28:00,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:28:00,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 22:28:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:28:00,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:00,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:28:00,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 22:28:00,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:28:00,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 22:28:00,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:28:00,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:28:00,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:28:00,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:28:00,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 22:28:00,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:28:00,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-14 22:28:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:28:00,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:00,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:28:00,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-14 22:28:00,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:28:00,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-14 22:28:00,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:28:00,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:28:00,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:28:00,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:28:00,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-14 22:28:00,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:28:01,113 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 205 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2020-10-14 22:28:01,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434001450] [2020-10-14 22:28:01,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:28:01,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:28:01,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418254620] [2020-10-14 22:28:01,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:28:01,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:28:01,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:28:01,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:28:01,117 INFO L87 Difference]: Start difference. First operand 15624 states and 18058 transitions. Second operand 7 states. [2020-10-14 22:28:19,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:28:19,752 INFO L93 Difference]: Finished difference Result 37646 states and 44361 transitions. [2020-10-14 22:28:19,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:28:19,755 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 294 [2020-10-14 22:28:19,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:28:19,836 INFO L225 Difference]: With dead ends: 37646 [2020-10-14 22:28:19,836 INFO L226 Difference]: Without dead ends: 22425 [2020-10-14 22:28:19,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:28:20,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22425 states. [2020-10-14 22:28:21,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22425 to 20577. [2020-10-14 22:28:21,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20577 states. [2020-10-14 22:28:21,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20577 states to 20577 states and 24109 transitions. [2020-10-14 22:28:21,049 INFO L78 Accepts]: Start accepts. Automaton has 20577 states and 24109 transitions. Word has length 294 [2020-10-14 22:28:21,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:28:21,050 INFO L479 AbstractCegarLoop]: Abstraction has 20577 states and 24109 transitions. [2020-10-14 22:28:21,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:28:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 20577 states and 24109 transitions. [2020-10-14 22:28:21,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2020-10-14 22:28:21,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:28:21,059 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:28:21,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:28:21,059 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:28:21,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:28:21,060 INFO L82 PathProgramCache]: Analyzing trace with hash 653004851, now seen corresponding path program 1 times [2020-10-14 22:28:21,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:28:21,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317748587] [2020-10-14 22:28:21,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:28:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:28:21,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:21,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:22,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:24,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:28:24,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 389 [2020-10-14 22:28:24,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:28:24,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2942 [2020-10-14 22:28:24,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:28:24,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:28:24,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:28:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 294 [2020-10-14 22:28:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 22:28:24,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:28:24,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:28:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:28:24,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:24,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:28:24,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:28:24,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:28:24,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:28:24,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:28:24,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:28:24,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:28:24,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:28:24,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:28:24,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:28:24,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:28:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:28:24,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:24,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:28:24,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:28:24,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:28:24,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 22:28:24,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:28:24,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:28:24,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:28:24,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:28:24,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:28:24,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:28:24,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 22:28:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:28:24,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:24,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:28:24,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 22:28:24,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:28:24,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 22:28:24,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:28:24,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:28:24,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:28:24,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:28:24,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:28:24,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:28:24,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-14 22:28:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:28:24,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:24,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:28:24,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 22:28:24,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:28:24,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 22:28:24,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:28:24,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:28:24,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:28:24,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:28:24,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 22:28:24,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:28:24,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2020-10-14 22:28:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:28:24,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:24,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:28:24,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:28:24,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:28:24,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-14 22:28:24,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:28:24,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:28:24,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:28:24,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:28:24,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:28:24,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:28:24,948 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 270 proven. 2 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2020-10-14 22:28:24,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317748587] [2020-10-14 22:28:24,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:28:24,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:28:24,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721583380] [2020-10-14 22:28:24,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:28:24,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:28:24,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:28:24,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:28:24,958 INFO L87 Difference]: Start difference. First operand 20577 states and 24109 transitions. Second operand 7 states. [2020-10-14 22:28:41,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:28:41,084 INFO L93 Difference]: Finished difference Result 50678 states and 60678 transitions. [2020-10-14 22:28:41,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:28:41,087 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 373 [2020-10-14 22:28:41,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:28:41,169 INFO L225 Difference]: With dead ends: 50678 [2020-10-14 22:28:41,170 INFO L226 Difference]: Without dead ends: 30050 [2020-10-14 22:28:41,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:28:41,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30050 states. [2020-10-14 22:28:41,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30050 to 29096. [2020-10-14 22:28:41,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29096 states. [2020-10-14 22:28:41,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29096 states to 29096 states and 34425 transitions. [2020-10-14 22:28:41,723 INFO L78 Accepts]: Start accepts. Automaton has 29096 states and 34425 transitions. Word has length 373 [2020-10-14 22:28:41,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:28:41,724 INFO L479 AbstractCegarLoop]: Abstraction has 29096 states and 34425 transitions. [2020-10-14 22:28:41,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:28:41,724 INFO L276 IsEmpty]: Start isEmpty. Operand 29096 states and 34425 transitions. [2020-10-14 22:28:41,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2020-10-14 22:28:41,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:28:41,733 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:28:41,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:28:41,734 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:28:41,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:28:41,734 INFO L82 PathProgramCache]: Analyzing trace with hash 926119729, now seen corresponding path program 1 times [2020-10-14 22:28:41,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:28:41,735 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158603557] [2020-10-14 22:28:41,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:28:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:28:41,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:42,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:43,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:43,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:46,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:28:46,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 392 [2020-10-14 22:28:46,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:28:46,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-14 22:28:46,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:28:46,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:28:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 22:28:46,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:28:46,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 292 [2020-10-14 22:28:46,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:28:47,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:28:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:28:47,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:47,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:28:47,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:28:47,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:28:47,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:28:47,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:28:47,021 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:28:47,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:28:47,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:28:47,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:28:47,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:28:47,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:28:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:28:47,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:47,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:28:47,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:28:47,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:28:47,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 22:28:47,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:28:47,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:28:47,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:28:47,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:28:47,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 22:28:47,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:28:47,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 22:28:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:28:47,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:47,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:28:47,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 22:28:47,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:28:47,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 22:28:47,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:28:47,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:28:47,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:28:47,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:28:47,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 22:28:47,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:28:47,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-14 22:28:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:28:47,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:47,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:28:47,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 22:28:47,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:28:47,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 22:28:47,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:28:47,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:28:47,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:28:47,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:28:47,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:28:47,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:28:47,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2020-10-14 22:28:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:28:47,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:28:47,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:28:47,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 22:28:47,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:28:47,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 22:28:47,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:28:47,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:28:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:28:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 22:28:47,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:28:47,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:28:48,086 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 139 proven. 378 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-14 22:28:48,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158603557] [2020-10-14 22:28:48,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:28:48,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 22:28:48,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920906088] [2020-10-14 22:28:48,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 22:28:48,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:28:48,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 22:28:48,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:28:48,089 INFO L87 Difference]: Start difference. First operand 29096 states and 34425 transitions. Second operand 11 states.