/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_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 22:37:53,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 22:37:53,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 22:37:53,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 22:37:53,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 22:37:53,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 22:37:53,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 22:37:53,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 22:37:53,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 22:37:53,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 22:37:53,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 22:37:53,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 22:37:53,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 22:37:53,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 22:37:53,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 22:37:53,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 22:37:53,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 22:37:53,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 22:37:53,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 22:37:53,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 22:37:53,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 22:37:53,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 22:37:53,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 22:37:53,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 22:37:53,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 22:37:53,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 22:37:53,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 22:37:53,940 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 22:37:53,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 22:37:53,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 22:37:53,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 22:37:53,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 22:37:53,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 22:37:53,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 22:37:53,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 22:37:53,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 22:37:53,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 22:37:53,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 22:37:53,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 22:37:53,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 22:37:53,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 22:37:53,948 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 22:37:53,970 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 22:37:53,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 22:37:53,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 22:37:53,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 22:37:53,972 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 22:37:53,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 22:37:53,973 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 22:37:53,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 22:37:53,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 22:37:53,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 22:37:53,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 22:37:53,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 22:37:53,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 22:37:53,974 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 22:37:53,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 22:37:53,975 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 22:37:53,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 22:37:53,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 22:37:53,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 22:37:53,976 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 22:37:53,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 22:37:53,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:37:53,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 22:37:53,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 22:37:53,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 22:37:53,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 22:37:53,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 22:37:53,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 22:37:53,977 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 22:37:53,978 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 22:37:54,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 22:37:54,325 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 22:37:54,330 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 22:37:54,331 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 22:37:54,332 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 22:37:54,332 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label54.c [2020-10-14 22:37:54,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b974697c9/66ca9c197f9c4f9485b4252594b3cd75/FLAG1e1fa4115 [2020-10-14 22:37:55,150 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 22:37:55,151 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem17_label54.c [2020-10-14 22:37:55,174 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b974697c9/66ca9c197f9c4f9485b4252594b3cd75/FLAG1e1fa4115 [2020-10-14 22:37:55,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b974697c9/66ca9c197f9c4f9485b4252594b3cd75 [2020-10-14 22:37:55,270 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 22:37:55,272 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 22:37:55,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 22:37:55,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 22:37:55,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 22:37:55,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:37:55" (1/1) ... [2020-10-14 22:37:55,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a8d835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:37:55, skipping insertion in model container [2020-10-14 22:37:55,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:37:55" (1/1) ... [2020-10-14 22:37:55,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 22:37:55,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 22:37:56,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:37:56,510 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 22:37:56,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 22:37:57,017 INFO L208 MainTranslator]: Completed translation [2020-10-14 22:37:57,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:37:57 WrapperNode [2020-10-14 22:37:57,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 22:37:57,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 22:37:57,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 22:37:57,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 22:37:57,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:37:57" (1/1) ... [2020-10-14 22:37:57,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:37:57" (1/1) ... [2020-10-14 22:37:57,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:37:57" (1/1) ... [2020-10-14 22:37:57,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:37:57" (1/1) ... [2020-10-14 22:37:57,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:37:57" (1/1) ... [2020-10-14 22:37:57,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:37:57" (1/1) ... [2020-10-14 22:37:57,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:37:57" (1/1) ... [2020-10-14 22:37:57,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 22:37:57,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 22:37:57,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 22:37:57,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 22:37:57,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:37:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 22:37:57,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 22:37:57,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 22:37:57,343 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 22:37:57,343 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 22:37:57,344 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 22:37:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 22:37:57,344 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 22:37:57,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 22:37:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 22:37:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 22:37:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 22:37:57,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 22:37:57,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 22:38:05,854 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 22:38:05,854 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 22:38:05,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:38:05 BoogieIcfgContainer [2020-10-14 22:38:05,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 22:38:05,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 22:38:05,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 22:38:05,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 22:38:05,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:37:55" (1/3) ... [2020-10-14 22:38:05,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2c1aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:38:05, skipping insertion in model container [2020-10-14 22:38:05,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:37:57" (2/3) ... [2020-10-14 22:38:05,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2c1aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:38:05, skipping insertion in model container [2020-10-14 22:38:05,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:38:05" (3/3) ... [2020-10-14 22:38:05,877 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem17_label54.c [2020-10-14 22:38:05,889 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 22:38:05,898 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 22:38:05,912 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 22:38:05,943 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 22:38:05,943 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 22:38:05,944 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 22:38:05,944 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 22:38:05,944 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 22:38:05,944 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 22:38:05,944 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 22:38:05,944 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 22:38:05,976 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states. [2020-10-14 22:38:05,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-14 22:38:05,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:38:05,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:38:05,985 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:38:05,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:38:05,990 INFO L82 PathProgramCache]: Analyzing trace with hash 51921113, now seen corresponding path program 1 times [2020-10-14 22:38:05,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:38:05,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692002598] [2020-10-14 22:38:05,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:38:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:38:06,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:38:06,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:38:06,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 22:38:06,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:38:06,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-10-14 22:38:06,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:38:06,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:38:06,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:38:06,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:38:06,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 22:38:06,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 22:38:06,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:38:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:38:06,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:38:06,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:38:06,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:38:06,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:38:06,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 22:38:06,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:38:06,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:38:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:38:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:38:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:38:06,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:38:06,811 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 22:38:06,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692002598] [2020-10-14 22:38:06,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:38:06,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 22:38:06,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985806955] [2020-10-14 22:38:06,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 22:38:06,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:38:06,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 22:38:06,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 22:38:06,840 INFO L87 Difference]: Start difference. First operand 603 states. Second operand 4 states. [2020-10-14 22:38:16,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:38:16,953 INFO L93 Difference]: Finished difference Result 1692 states and 3091 transitions. [2020-10-14 22:38:16,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:38:16,955 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-14 22:38:16,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:38:16,983 INFO L225 Difference]: With dead ends: 1692 [2020-10-14 22:38:16,984 INFO L226 Difference]: Without dead ends: 1012 [2020-10-14 22:38:16,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:38:17,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2020-10-14 22:38:17,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 1002. [2020-10-14 22:38:17,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1002 states. [2020-10-14 22:38:17,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1542 transitions. [2020-10-14 22:38:17,128 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1542 transitions. Word has length 19 [2020-10-14 22:38:17,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:38:17,129 INFO L479 AbstractCegarLoop]: Abstraction has 1002 states and 1542 transitions. [2020-10-14 22:38:17,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 22:38:17,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1542 transitions. [2020-10-14 22:38:17,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-14 22:38:17,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:38:17,134 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:38:17,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 22:38:17,135 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:38:17,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:38:17,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1846572815, now seen corresponding path program 1 times [2020-10-14 22:38:17,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:38:17,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920799218] [2020-10-14 22:38:17,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:38:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:38:17,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:38:17,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:38:18,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:38:18,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-14 22:38:18,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:38:18,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1104 [2020-10-14 22:38:18,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:38:18,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:38:18,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 22:38:18,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:38:18,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-14 22:38:18,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:38:18,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:38:18,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:38:18,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:38:18,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:38:18,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:38:18,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:38:18,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 22:38:18,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:38:18,380 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:38:18,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:38:18,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:38:18,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:38:18,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:38:18,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:38:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:38:18,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:38:18,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:38:18,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 22:38:18,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:38:18,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-14 22:38:18,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:38:18,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:38:18,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:38:18,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:38:18,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 22:38:18,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:38:18,773 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:38:18,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920799218] [2020-10-14 22:38:18,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 22:38:18,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 22:38:18,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276123120] [2020-10-14 22:38:18,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:38:18,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:38:18,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:38:18,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:38:18,779 INFO L87 Difference]: Start difference. First operand 1002 states and 1542 transitions. Second operand 7 states. [2020-10-14 22:38:31,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:38:31,969 INFO L93 Difference]: Finished difference Result 2929 states and 4529 transitions. [2020-10-14 22:38:31,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:38:31,971 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 90 [2020-10-14 22:38:31,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:38:31,987 INFO L225 Difference]: With dead ends: 2929 [2020-10-14 22:38:31,987 INFO L226 Difference]: Without dead ends: 1933 [2020-10-14 22:38:31,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:38:31,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2020-10-14 22:38:32,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1901. [2020-10-14 22:38:32,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1901 states. [2020-10-14 22:38:32,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2465 transitions. [2020-10-14 22:38:32,109 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2465 transitions. Word has length 90 [2020-10-14 22:38:32,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:38:32,110 INFO L479 AbstractCegarLoop]: Abstraction has 1901 states and 2465 transitions. [2020-10-14 22:38:32,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:38:32,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2465 transitions. [2020-10-14 22:38:32,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-14 22:38:32,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:38:32,117 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:38:32,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 22:38:32,117 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:38:32,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:38:32,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1300994527, now seen corresponding path program 1 times [2020-10-14 22:38:32,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:38:32,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401846243] [2020-10-14 22:38:32,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:38:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:38:32,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:38:32,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:38:32,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 22:38:32,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:38:32,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-10-14 22:38:32,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:38:32,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:38:32,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:38:32,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-14 22:38:32,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 22:38:32,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:38:32,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:38:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:38:32,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:38:32,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:38:32,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:38:32,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:38:32,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:38:32,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:38:32,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:38:32,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:38:32,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:38:32,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:38:32,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:38:32,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:38:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:38:32,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:38:32,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:38:32,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 22:38:32,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:38:32,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 22:38:32,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:38:32,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:38:32,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:38:32,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:38:32,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-14 22:38:32,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:38:32,833 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 22:38:32,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401846243] [2020-10-14 22:38:32,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:38:32,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:38:32,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919793154] [2020-10-14 22:38:32,834 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:38:32,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:38:32,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:38:32,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:38:32,835 INFO L87 Difference]: Start difference. First operand 1901 states and 2465 transitions. Second operand 5 states. [2020-10-14 22:38:47,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:38:47,992 INFO L93 Difference]: Finished difference Result 4701 states and 6246 transitions. [2020-10-14 22:38:47,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:38:47,994 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2020-10-14 22:38:47,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:38:48,012 INFO L225 Difference]: With dead ends: 4701 [2020-10-14 22:38:48,012 INFO L226 Difference]: Without dead ends: 2360 [2020-10-14 22:38:48,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 22:38:48,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2020-10-14 22:38:48,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2354. [2020-10-14 22:38:48,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2354 states. [2020-10-14 22:38:48,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2354 states to 2354 states and 2891 transitions. [2020-10-14 22:38:48,094 INFO L78 Accepts]: Start accepts. Automaton has 2354 states and 2891 transitions. Word has length 93 [2020-10-14 22:38:48,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:38:48,095 INFO L479 AbstractCegarLoop]: Abstraction has 2354 states and 2891 transitions. [2020-10-14 22:38:48,095 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:38:48,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2354 states and 2891 transitions. [2020-10-14 22:38:48,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-14 22:38:48,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:38:48,110 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:38:48,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 22:38:48,111 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:38:48,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:38:48,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1890361789, now seen corresponding path program 1 times [2020-10-14 22:38:48,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:38:48,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256049678] [2020-10-14 22:38:48,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:38:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:38:48,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:38:48,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:38:49,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:38:49,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-10-14 22:38:49,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:38:49,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1012 [2020-10-14 22:38:49,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:38:49,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:38:49,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:38:49,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-14 22:38:49,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:38:49,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-14 22:38:49,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:38:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:38:49,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:38:49,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:38:49,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:38:49,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:38:49,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:38:49,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:38:49,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:38:49,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:38:49,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:38:49,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:38:49,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:38:49,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:38:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:38:49,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:38:49,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:38:49,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:38:49,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:38:49,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-14 22:38:49,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:38:49,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:38:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:38:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:38:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:38:49,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:38:49,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 22:38:49,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:38:49,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:38:49,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:38:49,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 22:38:49,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:38:49,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-14 22:38:49,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:38:49,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:38:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:38:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:38:49,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 22:38:49,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:38:49,823 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:38:49,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256049678] [2020-10-14 22:38:49,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:38:49,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:38:49,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234870158] [2020-10-14 22:38:49,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 22:38:49,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:38:49,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 22:38:49,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 22:38:49,829 INFO L87 Difference]: Start difference. First operand 2354 states and 2891 transitions. Second operand 8 states. [2020-10-14 22:39:00,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:39:00,218 INFO L93 Difference]: Finished difference Result 6082 states and 7733 transitions. [2020-10-14 22:39:00,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 22:39:00,219 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 179 [2020-10-14 22:39:00,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:39:00,245 INFO L225 Difference]: With dead ends: 6082 [2020-10-14 22:39:00,245 INFO L226 Difference]: Without dead ends: 3734 [2020-10-14 22:39:00,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:39:00,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2020-10-14 22:39:00,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 3716. [2020-10-14 22:39:00,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3716 states. [2020-10-14 22:39:00,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3716 states to 3716 states and 4564 transitions. [2020-10-14 22:39:00,368 INFO L78 Accepts]: Start accepts. Automaton has 3716 states and 4564 transitions. Word has length 179 [2020-10-14 22:39:00,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:39:00,370 INFO L479 AbstractCegarLoop]: Abstraction has 3716 states and 4564 transitions. [2020-10-14 22:39:00,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 22:39:00,370 INFO L276 IsEmpty]: Start isEmpty. Operand 3716 states and 4564 transitions. [2020-10-14 22:39:00,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-14 22:39:00,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:39:00,373 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:39:00,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 22:39:00,373 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:39:00,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:39:00,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1903898881, now seen corresponding path program 1 times [2020-10-14 22:39:00,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:39:00,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894075387] [2020-10-14 22:39:00,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:39:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:39:00,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:00,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:02,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:04,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:39:04,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-14 22:39:04,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:39:04,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3678 [2020-10-14 22:39:04,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:39:04,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:39:04,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 22:39:04,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:39:04,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-14 22:39:04,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:39:04,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:39:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:39:04,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:04,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:39:04,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:39:04,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:39:04,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 22:39:04,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:39:04,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:39:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:39:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:39:04,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:39:04,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:39:04,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:39:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:39:04,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:04,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:39:04,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:39:04,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:39:04,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-14 22:39:04,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:39:04,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:39:04,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:39:04,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:39:04,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 22:39:04,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 22:39:04,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 22:39:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:39:04,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:04,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:39:04,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:39:04,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:39:04,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-14 22:39:04,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:39:04,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:39:04,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:39:04,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:39:04,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:39:04,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:39:04,845 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-14 22:39:04,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894075387] [2020-10-14 22:39:04,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:39:04,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 22:39:04,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103709558] [2020-10-14 22:39:04,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 22:39:04,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:39:04,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 22:39:04,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-14 22:39:04,848 INFO L87 Difference]: Start difference. First operand 3716 states and 4564 transitions. Second operand 9 states. [2020-10-14 22:39:17,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:39:17,804 INFO L93 Difference]: Finished difference Result 13923 states and 17902 transitions. [2020-10-14 22:39:17,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 22:39:17,805 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 181 [2020-10-14 22:39:17,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:39:17,855 INFO L225 Difference]: With dead ends: 13923 [2020-10-14 22:39:17,855 INFO L226 Difference]: Without dead ends: 9743 [2020-10-14 22:39:17,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2020-10-14 22:39:17,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9743 states. [2020-10-14 22:39:18,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9743 to 9661. [2020-10-14 22:39:18,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9661 states. [2020-10-14 22:39:18,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9661 states to 9661 states and 11777 transitions. [2020-10-14 22:39:18,108 INFO L78 Accepts]: Start accepts. Automaton has 9661 states and 11777 transitions. Word has length 181 [2020-10-14 22:39:18,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:39:18,109 INFO L479 AbstractCegarLoop]: Abstraction has 9661 states and 11777 transitions. [2020-10-14 22:39:18,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 22:39:18,109 INFO L276 IsEmpty]: Start isEmpty. Operand 9661 states and 11777 transitions. [2020-10-14 22:39:18,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-14 22:39:18,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:39:18,113 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:39:18,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 22:39:18,113 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:39:18,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:39:18,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1100069452, now seen corresponding path program 1 times [2020-10-14 22:39:18,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:39:18,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542624210] [2020-10-14 22:39:18,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:39:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:39:18,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:18,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:20,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:39:20,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-14 22:39:20,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:39:20,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1820 [2020-10-14 22:39:20,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:39:20,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:39:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:39:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-14 22:39:20,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-14 22:39:20,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:39:20,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:39:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:39:20,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:20,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:39:20,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:39:20,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:39:20,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:39:20,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:39:20,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:39:20,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:39:20,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:39:20,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:39:20,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:39:20,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:39:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:39:20,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:20,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:39:20,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:39:20,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:39:20,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 22:39:20,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:39:20,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:39:20,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:39:20,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:39:20,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:39:20,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:39:20,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 22:39:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:39:20,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:20,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:39:20,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 22:39:20,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:39:20,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-10-14 22:39:20,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:39:20,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:39:20,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:39:20,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:39:20,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:39:20,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:39:20,841 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:39:20,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542624210] [2020-10-14 22:39:20,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:39:20,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:39:20,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296222415] [2020-10-14 22:39:20,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:39:20,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:39:20,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:39:20,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:39:20,845 INFO L87 Difference]: Start difference. First operand 9661 states and 11777 transitions. Second operand 7 states. [2020-10-14 22:39:32,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:39:32,098 INFO L93 Difference]: Finished difference Result 20857 states and 25492 transitions. [2020-10-14 22:39:32,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:39:32,099 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 215 [2020-10-14 22:39:32,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:39:32,143 INFO L225 Difference]: With dead ends: 20857 [2020-10-14 22:39:32,143 INFO L226 Difference]: Without dead ends: 11202 [2020-10-14 22:39:32,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 22:39:32,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11202 states. [2020-10-14 22:39:32,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11202 to 11118. [2020-10-14 22:39:32,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11118 states. [2020-10-14 22:39:32,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11118 states to 11118 states and 13532 transitions. [2020-10-14 22:39:32,385 INFO L78 Accepts]: Start accepts. Automaton has 11118 states and 13532 transitions. Word has length 215 [2020-10-14 22:39:32,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:39:32,386 INFO L479 AbstractCegarLoop]: Abstraction has 11118 states and 13532 transitions. [2020-10-14 22:39:32,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:39:32,386 INFO L276 IsEmpty]: Start isEmpty. Operand 11118 states and 13532 transitions. [2020-10-14 22:39:32,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-14 22:39:32,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:39:32,391 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:39:32,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 22:39:32,391 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:39:32,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:39:32,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1791887548, now seen corresponding path program 1 times [2020-10-14 22:39:32,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:39:32,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2120432881] [2020-10-14 22:39:32,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:39:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:39:32,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:32,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:34,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:34,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:39:34,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-14 22:39:34,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:39:34,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2428 [2020-10-14 22:39:34,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:39:34,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:39:34,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-14 22:39:34,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:39:34,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 247 [2020-10-14 22:39:34,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:39:34,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:39:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:39:34,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:34,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:39:34,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:39:34,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:39:34,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 22:39:34,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:39:34,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:39:34,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:39:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:39:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:39:34,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:39:35,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:39:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:39:35,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:35,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:39:35,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:39:35,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:39:35,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-14 22:39:35,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:39:35,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:39:35,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:39:35,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:39:35,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 22:39:35,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:39:35,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 22:39:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:39:35,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:35,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:39:35,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-14 22:39:35,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:39:35,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-10-14 22:39:35,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:39:35,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:39:35,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:39:35,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:39:35,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-14 22:39:35,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:39:36,036 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 28 proven. 82 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 22:39:36,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2120432881] [2020-10-14 22:39:36,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:39:36,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 22:39:36,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560486194] [2020-10-14 22:39:36,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 22:39:36,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:39:36,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 22:39:36,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-14 22:39:36,039 INFO L87 Difference]: Start difference. First operand 11118 states and 13532 transitions. Second operand 10 states. [2020-10-14 22:39:56,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:39:56,679 INFO L93 Difference]: Finished difference Result 33066 states and 41405 transitions. [2020-10-14 22:39:56,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 22:39:56,681 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 258 [2020-10-14 22:39:56,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:39:56,753 INFO L225 Difference]: With dead ends: 33066 [2020-10-14 22:39:56,753 INFO L226 Difference]: Without dead ends: 21954 [2020-10-14 22:39:56,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2020-10-14 22:39:56,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21954 states. [2020-10-14 22:39:57,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21954 to 20998. [2020-10-14 22:39:57,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20998 states. [2020-10-14 22:39:57,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20998 states to 20998 states and 25958 transitions. [2020-10-14 22:39:57,198 INFO L78 Accepts]: Start accepts. Automaton has 20998 states and 25958 transitions. Word has length 258 [2020-10-14 22:39:57,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:39:57,198 INFO L479 AbstractCegarLoop]: Abstraction has 20998 states and 25958 transitions. [2020-10-14 22:39:57,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 22:39:57,199 INFO L276 IsEmpty]: Start isEmpty. Operand 20998 states and 25958 transitions. [2020-10-14 22:39:57,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2020-10-14 22:39:57,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:39:57,204 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:39:57,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 22:39:57,205 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:39:57,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:39:57,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1191831452, now seen corresponding path program 1 times [2020-10-14 22:39:57,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:39:57,205 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1982803200] [2020-10-14 22:39:57,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:39:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:39:57,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:57,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:58,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:39:58,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:00,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:00,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 308 [2020-10-14 22:40:00,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:40:00,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3025 [2020-10-14 22:40:00,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:00,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:00,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 22:40:00,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-14 22:40:00,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 210 [2020-10-14 22:40:00,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:40:00,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:40:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:00,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:00,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:00,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:40:00,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:00,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:40:00,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:00,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:00,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:40:00,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:40:00,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:40:00,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:40:00,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:40:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:00,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:00,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:00,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:40:00,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:00,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-14 22:40:00,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:00,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:00,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:40:00,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:40:00,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 22:40:00,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:40:00,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 22:40:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:00,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:00,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:00,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:00,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 22:40:00,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:40:00,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-14 22:40:00,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:00,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:00,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:40:00,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:40:00,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 22:40:00,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:40:00,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-14 22:40:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:00,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:01,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:01,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:01,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 22:40:01,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:40:01,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-10-14 22:40:01,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:01,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:40:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:40:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-14 22:40:01,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:40:01,292 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2020-10-14 22:40:01,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1982803200] [2020-10-14 22:40:01,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:40:01,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 22:40:01,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642533676] [2020-10-14 22:40:01,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 22:40:01,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:40:01,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 22:40:01,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 22:40:01,296 INFO L87 Difference]: Start difference. First operand 20998 states and 25958 transitions. Second operand 5 states. [2020-10-14 22:40:11,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:40:11,296 INFO L93 Difference]: Finished difference Result 42432 states and 52838 transitions. [2020-10-14 22:40:11,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 22:40:11,298 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 294 [2020-10-14 22:40:11,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:40:11,381 INFO L225 Difference]: With dead ends: 42432 [2020-10-14 22:40:11,381 INFO L226 Difference]: Without dead ends: 21440 [2020-10-14 22:40:11,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 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 22:40:11,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21440 states. [2020-10-14 22:40:11,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21440 to 21426. [2020-10-14 22:40:11,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21426 states. [2020-10-14 22:40:11,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21426 states to 21426 states and 26734 transitions. [2020-10-14 22:40:11,816 INFO L78 Accepts]: Start accepts. Automaton has 21426 states and 26734 transitions. Word has length 294 [2020-10-14 22:40:11,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:40:11,817 INFO L479 AbstractCegarLoop]: Abstraction has 21426 states and 26734 transitions. [2020-10-14 22:40:11,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 22:40:11,817 INFO L276 IsEmpty]: Start isEmpty. Operand 21426 states and 26734 transitions. [2020-10-14 22:40:11,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-10-14 22:40:11,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:40:11,824 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 22:40:11,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 22:40:11,825 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:40:11,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:40:11,825 INFO L82 PathProgramCache]: Analyzing trace with hash -802585044, now seen corresponding path program 1 times [2020-10-14 22:40:11,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:40:11,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579549805] [2020-10-14 22:40:11,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:40:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:11,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:12,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:12,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:16,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:16,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 385 [2020-10-14 22:40:16,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:40:16,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 22:40:16,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:16,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:16,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:40:16,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-10-14 22:40:16,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 22:40:16,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:40:17,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:40:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:17,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:17,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:17,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:40:17,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:17,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 22:40:17,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:17,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:17,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:40:17,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:40:17,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:40:17,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:40:17,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:40:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:17,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:17,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:17,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:40:17,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:17,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:40:17,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:17,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:17,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:40:17,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:40:17,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:40:17,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:40:17,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 22:40:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:17,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:17,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:17,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 22:40:17,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:17,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 22:40:17,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:17,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:17,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:40:17,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:40:17,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 22:40:17,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:40:17,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-14 22:40:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:17,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:17,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:17,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 22:40:17,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:17,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-14 22:40:17,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:17,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:17,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:40:17,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:40:17,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 22:40:17,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:40:17,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2020-10-14 22:40:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:17,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:17,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:17,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:40:17,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:17,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 22:40:17,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:17,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:17,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:40:17,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 22:40:17,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:40:17,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:40:17,792 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 228 proven. 74 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2020-10-14 22:40:17,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579549805] [2020-10-14 22:40:17,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:40:17,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:40:17,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089134028] [2020-10-14 22:40:17,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:40:17,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:40:17,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:40:17,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:40:17,794 INFO L87 Difference]: Start difference. First operand 21426 states and 26734 transitions. Second operand 7 states. [2020-10-14 22:40:35,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:40:35,570 INFO L93 Difference]: Finished difference Result 50109 states and 64792 transitions. [2020-10-14 22:40:35,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:40:35,572 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 369 [2020-10-14 22:40:35,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:40:35,648 INFO L225 Difference]: With dead ends: 50109 [2020-10-14 22:40:35,649 INFO L226 Difference]: Without dead ends: 27771 [2020-10-14 22:40:35,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 22:40:35,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27771 states. [2020-10-14 22:40:36,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27771 to 27242. [2020-10-14 22:40:36,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27242 states. [2020-10-14 22:40:36,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27242 states to 27242 states and 35142 transitions. [2020-10-14 22:40:36,168 INFO L78 Accepts]: Start accepts. Automaton has 27242 states and 35142 transitions. Word has length 369 [2020-10-14 22:40:36,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:40:36,168 INFO L479 AbstractCegarLoop]: Abstraction has 27242 states and 35142 transitions. [2020-10-14 22:40:36,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:40:36,169 INFO L276 IsEmpty]: Start isEmpty. Operand 27242 states and 35142 transitions. [2020-10-14 22:40:36,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-10-14 22:40:36,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:40:36,178 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 22:40:36,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 22:40:36,178 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:40:36,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:40:36,179 INFO L82 PathProgramCache]: Analyzing trace with hash -617336977, now seen corresponding path program 1 times [2020-10-14 22:40:36,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:40:36,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084645379] [2020-10-14 22:40:36,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:40:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:36,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:36,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:37,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:38,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:38,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 390 [2020-10-14 22:40:38,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 22:40:38,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2406 [2020-10-14 22:40:38,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:38,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:38,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:40:38,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 294 [2020-10-14 22:40:38,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 22:40:38,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:40:38,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:40:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:38,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:38,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:38,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:40:38,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:38,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 22:40:38,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:38,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:38,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:40:38,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:40:38,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:40:38,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:40:38,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:40:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:38,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:38,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:38,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:40:38,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:38,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 22:40:38,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:38,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:40:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:40:38,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:40:38,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:40:38,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 22:40:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:38,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:38,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:38,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 22:40:38,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:38,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 22:40:38,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:38,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:38,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:40:38,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:40:38,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:40:38,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:40:38,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-14 22:40:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:39,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:39,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:39,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 22:40:39,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:39,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 22:40:39,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:39,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:39,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:40:39,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:40:39,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 22:40:39,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:40:39,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2020-10-14 22:40:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:39,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:39,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:40:39,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:40:39,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:40:39,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 22:40:39,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:40:39,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:40:39,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:40:39,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:40:39,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 22:40:39,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:40:39,332 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 274 proven. 2 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2020-10-14 22:40:39,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084645379] [2020-10-14 22:40:39,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:40:39,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:40:39,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942020565] [2020-10-14 22:40:39,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:40:39,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:40:39,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:40:39,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:40:39,335 INFO L87 Difference]: Start difference. First operand 27242 states and 35142 transitions. Second operand 7 states. [2020-10-14 22:40:56,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:40:56,348 INFO L93 Difference]: Finished difference Result 66508 states and 86212 transitions. [2020-10-14 22:40:56,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:40:56,350 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 374 [2020-10-14 22:40:56,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:40:56,467 INFO L225 Difference]: With dead ends: 66508 [2020-10-14 22:40:56,468 INFO L226 Difference]: Without dead ends: 37381 [2020-10-14 22:40:56,516 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 22:40:56,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37381 states. [2020-10-14 22:40:57,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37381 to 36872. [2020-10-14 22:40:57,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36872 states. [2020-10-14 22:40:57,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36872 states to 36872 states and 46892 transitions. [2020-10-14 22:40:57,218 INFO L78 Accepts]: Start accepts. Automaton has 36872 states and 46892 transitions. Word has length 374 [2020-10-14 22:40:57,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:40:57,219 INFO L479 AbstractCegarLoop]: Abstraction has 36872 states and 46892 transitions. [2020-10-14 22:40:57,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:40:57,219 INFO L276 IsEmpty]: Start isEmpty. Operand 36872 states and 46892 transitions. [2020-10-14 22:40:57,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2020-10-14 22:40:57,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:40:57,232 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2020-10-14 22:40:57,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 22:40:57,233 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:40:57,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:40:57,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1185292447, now seen corresponding path program 1 times [2020-10-14 22:40:57,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:40:57,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1986871035] [2020-10-14 22:40:57,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:40:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:40:57,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:40:57,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:00,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:00,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 470 [2020-10-14 22:41:00,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 22:41:00,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2885 [2020-10-14 22:41:00,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:00,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:00,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:41:00,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 294 [2020-10-14 22:41:00,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 22:41:00,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:00,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:41:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:00,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:00,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:00,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:41:00,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:00,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 22:41:00,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:00,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:00,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:41:00,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:41:00,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:41:00,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:00,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:41:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:00,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:00,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:00,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:41:00,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:00,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 22:41:00,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:00,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:00,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:41:00,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:41:00,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:41:00,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:00,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 22:41:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:00,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:00,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:00,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 22:41:00,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:00,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 22:41:00,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:00,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:00,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:41:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:41:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:41:00,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:00,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-14 22:41:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:00,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:00,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:00,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 22:41:00,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:00,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 22:41:00,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:00,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:00,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:41:00,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:41:00,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-14 22:41:00,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:00,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2020-10-14 22:41:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:00,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:00,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:00,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 22:41:00,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:00,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-14 22:41:00,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:00,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:41:00,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:41:00,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 22:41:00,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:41:00,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2020-10-14 22:41:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:00,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:00,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:00,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:41:00,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:00,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 22:41:00,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:00,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:00,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:41:00,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 22:41:00,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:41:00,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:41:01,060 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 307 proven. 74 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2020-10-14 22:41:01,061 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1986871035] [2020-10-14 22:41:01,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:41:01,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 22:41:01,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398748104] [2020-10-14 22:41:01,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 22:41:01,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:41:01,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 22:41:01,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 22:41:01,063 INFO L87 Difference]: Start difference. First operand 36872 states and 46892 transitions. Second operand 7 states. [2020-10-14 22:41:18,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 22:41:18,146 INFO L93 Difference]: Finished difference Result 90495 states and 116144 transitions. [2020-10-14 22:41:18,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 22:41:18,150 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 452 [2020-10-14 22:41:18,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 22:41:18,313 INFO L225 Difference]: With dead ends: 90495 [2020-10-14 22:41:18,313 INFO L226 Difference]: Without dead ends: 53629 [2020-10-14 22:41:18,384 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 22:41:18,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53629 states. [2020-10-14 22:41:19,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53629 to 50537. [2020-10-14 22:41:19,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50537 states. [2020-10-14 22:41:19,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50537 states to 50537 states and 63587 transitions. [2020-10-14 22:41:19,352 INFO L78 Accepts]: Start accepts. Automaton has 50537 states and 63587 transitions. Word has length 452 [2020-10-14 22:41:19,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 22:41:19,353 INFO L479 AbstractCegarLoop]: Abstraction has 50537 states and 63587 transitions. [2020-10-14 22:41:19,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 22:41:19,354 INFO L276 IsEmpty]: Start isEmpty. Operand 50537 states and 63587 transitions. [2020-10-14 22:41:19,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2020-10-14 22:41:19,367 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 22:41:19,368 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 22:41:19,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 22:41:19,369 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 22:41:19,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 22:41:19,370 INFO L82 PathProgramCache]: Analyzing trace with hash -171612357, now seen corresponding path program 1 times [2020-10-14 22:41:19,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 22:41:19,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36146883] [2020-10-14 22:41:19,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 22:41:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:19,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:19,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:19,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:21,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:24,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:24,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 472 [2020-10-14 22:41:24,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 22:41:24,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 22:41:24,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:24,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:24,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 22:41:24,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 22:41:24,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 292 [2020-10-14 22:41:24,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:24,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 22:41:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:24,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:24,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:24,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 22:41:24,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:24,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 22:41:24,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:24,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:24,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 22:41:24,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 22:41:24,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 22:41:24,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:24,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 22:41:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:24,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:24,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:24,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-14 22:41:24,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:24,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 22:41:24,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:24,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:24,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 22:41:24,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:41:24,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 22:41:24,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:25,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-14 22:41:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:25,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:25,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:25,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 22:41:25,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:25,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-14 22:41:25,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:25,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:25,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:41:25,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:41:25,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-14 22:41:25,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 22:41:25,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-14 22:41:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:25,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:25,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:25,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 22:41:25,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:25,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-14 22:41:25,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:25,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:25,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 22:41:25,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 22:41:25,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 22:41:25,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:41:25,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2020-10-14 22:41:25,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:25,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:25,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:25,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-14 22:41:25,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:25,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 22:41:25,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:25,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:25,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:41:25,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-14 22:41:25,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:41:25,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:41:25,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2020-10-14 22:41:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 22:41:25,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 22:41:25,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 22:41:25,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 22:41:25,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 22:41:25,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 22:41:25,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 22:41:25,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 22:41:25,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 22:41:25,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 22:41:25,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 22:41:25,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 22:41:26,027 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 163 proven. 594 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-14 22:41:26,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36146883] [2020-10-14 22:41:26,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 22:41:26,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-14 22:41:26,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740806546] [2020-10-14 22:41:26,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 22:41:26,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 22:41:26,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 22:41:26,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-14 22:41:26,030 INFO L87 Difference]: Start difference. First operand 50537 states and 63587 transitions. Second operand 11 states.