/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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:46:02,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:46:02,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:46:02,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:46:02,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:46:02,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:46:02,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:46:02,417 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:46:02,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:46:02,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:46:02,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:46:02,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:46:02,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:46:02,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:46:02,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:46:02,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:46:02,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:46:02,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:46:02,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:46:02,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:46:02,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:46:02,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:46:02,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:46:02,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:46:02,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:46:02,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:46:02,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:46:02,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:46:02,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:46:02,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:46:02,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:46:02,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:46:02,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:46:02,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:46:02,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:46:02,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:46:02,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:46:02,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:46:02,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:46:02,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:46:02,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:46:02,452 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 [2020-09-25 06:46:02,479 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:46:02,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:46:02,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:46:02,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:46:02,481 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:46:02,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:46:02,481 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:46:02,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:46:02,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:46:02,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:46:02,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:46:02,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:46:02,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:46:02,483 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:46:02,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:46:02,483 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:46:02,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:46:02,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:46:02,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:46:02,484 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:46:02,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:46:02,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:46:02,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:46:02,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:46:02,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:46:02,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:46:02,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:46:02,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:46:02,486 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:46:02,486 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:46:02,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:46:02,979 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:46:02,985 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:46:02,988 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:46:02,989 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:46:02,990 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label50.c [2020-09-25 06:46:03,070 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51be6c0ba/d898d674963f4e8594de591b53509f5b/FLAG704d6428d [2020-09-25 06:46:03,667 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:46:03,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label50.c [2020-09-25 06:46:03,680 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51be6c0ba/d898d674963f4e8594de591b53509f5b/FLAG704d6428d [2020-09-25 06:46:03,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/51be6c0ba/d898d674963f4e8594de591b53509f5b [2020-09-25 06:46:03,916 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:46:03,923 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:46:03,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:46:03,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:46:03,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:46:03,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:46:03" (1/1) ... [2020-09-25 06:46:03,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197519f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:03, skipping insertion in model container [2020-09-25 06:46:03,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:46:03" (1/1) ... [2020-09-25 06:46:03,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:46:04,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:46:04,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:46:04,532 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:46:04,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:46:04,864 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:46:04,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:04 WrapperNode [2020-09-25 06:46:04,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:46:04,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:46:04,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:46:04,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:46:04,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:04" (1/1) ... [2020-09-25 06:46:04,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:04" (1/1) ... [2020-09-25 06:46:04,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:04" (1/1) ... [2020-09-25 06:46:04,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:04" (1/1) ... [2020-09-25 06:46:04,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:04" (1/1) ... [2020-09-25 06:46:04,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:04" (1/1) ... [2020-09-25 06:46:04,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:04" (1/1) ... [2020-09-25 06:46:05,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:46:05,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:46:05,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:46:05,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:46:05,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:04" (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 [2020-09-25 06:46:05,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:46:05,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:46:05,100 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-25 06:46:05,101 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:46:05,101 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-25 06:46:05,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:46:05,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:46:05,102 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 06:46:05,102 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:46:05,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:46:05,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:46:06,533 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:46:06,534 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 06:46:06,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:46:06 BoogieIcfgContainer [2020-09-25 06:46:06,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:46:06,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:46:06,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:46:06,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:46:06,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:46:03" (1/3) ... [2020-09-25 06:46:06,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0ac5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:46:06, skipping insertion in model container [2020-09-25 06:46:06,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:46:04" (2/3) ... [2020-09-25 06:46:06,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0ac5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:46:06, skipping insertion in model container [2020-09-25 06:46:06,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:46:06" (3/3) ... [2020-09-25 06:46:06,561 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label50.c [2020-09-25 06:46:06,572 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:46:06,586 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:46:06,605 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:46:06,639 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:46:06,639 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:46:06,639 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:46:06,639 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:46:06,639 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:46:06,640 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:46:06,640 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:46:06,640 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:46:06,674 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states. [2020-09-25 06:46:06,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-25 06:46:06,694 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:46:06,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:46:06,696 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:46:06,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:46:06,704 INFO L82 PathProgramCache]: Analyzing trace with hash -593885342, now seen corresponding path program 1 times [2020-09-25 06:46:06,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:46:06,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533879925] [2020-09-25 06:46:06,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:46:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:07,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:07,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:07,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:09,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:11,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:11,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-25 06:46:11,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:46:11,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4212 [2020-09-25 06:46:11,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:11,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:11,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:46:11,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 06:46:11,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 06:46:11,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:46:11,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:46:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:11,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:11,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:11,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:46:11,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:11,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 06:46:11,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:11,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:11,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:46:11,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:11,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:46:11,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:46:11,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:46:11,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533879925] [2020-09-25 06:46:11,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:46:11,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:46:11,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195987566] [2020-09-25 06:46:11,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:46:11,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:46:11,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:46:11,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:46:11,579 INFO L87 Difference]: Start difference. First operand 527 states. Second operand 5 states. [2020-09-25 06:46:14,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:46:14,880 INFO L93 Difference]: Finished difference Result 1539 states and 2132 transitions. [2020-09-25 06:46:14,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:46:14,884 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-09-25 06:46:14,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:46:14,926 INFO L225 Difference]: With dead ends: 1539 [2020-09-25 06:46:14,927 INFO L226 Difference]: Without dead ends: 935 [2020-09-25 06:46:14,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:46:14,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2020-09-25 06:46:15,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 878. [2020-09-25 06:46:15,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-09-25 06:46:15,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1089 transitions. [2020-09-25 06:46:15,105 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1089 transitions. Word has length 107 [2020-09-25 06:46:15,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:46:15,107 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 1089 transitions. [2020-09-25 06:46:15,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:46:15,107 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1089 transitions. [2020-09-25 06:46:15,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-09-25 06:46:15,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:46:15,117 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:46:15,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:46:15,118 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:46:15,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:46:15,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1658093710, now seen corresponding path program 1 times [2020-09-25 06:46:15,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:46:15,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842342876] [2020-09-25 06:46:15,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:46:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:15,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:15,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:15,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:15,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:16,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:18,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:18,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-25 06:46:18,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:46:18,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3168 [2020-09-25 06:46:18,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:18,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:18,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:46:18,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-25 06:46:18,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 06:46:18,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:46:18,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:46:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:18,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:18,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:18,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:46:18,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:18,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 06:46:18,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:18,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:18,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:46:18,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:18,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:46:18,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:18,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:46:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:18,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:18,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:18,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:46:18,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:18,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 06:46:18,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:18,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:18,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:46:18,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:18,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:46:18,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:18,629 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:46:18,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842342876] [2020-09-25 06:46:18,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:46:18,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 06:46:18,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093723536] [2020-09-25 06:46:18,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:46:18,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:46:18,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:46:18,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:46:18,634 INFO L87 Difference]: Start difference. First operand 878 states and 1089 transitions. Second operand 5 states. [2020-09-25 06:46:20,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:46:20,532 INFO L93 Difference]: Finished difference Result 2199 states and 2857 transitions. [2020-09-25 06:46:20,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:46:20,535 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2020-09-25 06:46:20,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:46:20,554 INFO L225 Difference]: With dead ends: 2199 [2020-09-25 06:46:20,555 INFO L226 Difference]: Without dead ends: 1343 [2020-09-25 06:46:20,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:46:20,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2020-09-25 06:46:20,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1330. [2020-09-25 06:46:20,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1330 states. [2020-09-25 06:46:20,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1680 transitions. [2020-09-25 06:46:20,657 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1680 transitions. Word has length 125 [2020-09-25 06:46:20,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:46:20,660 INFO L479 AbstractCegarLoop]: Abstraction has 1330 states and 1680 transitions. [2020-09-25 06:46:20,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:46:20,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1680 transitions. [2020-09-25 06:46:20,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-09-25 06:46:20,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:46:20,670 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:46:20,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:46:20,670 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:46:20,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:46:20,671 INFO L82 PathProgramCache]: Analyzing trace with hash -125182521, now seen corresponding path program 1 times [2020-09-25 06:46:20,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:46:20,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444547373] [2020-09-25 06:46:20,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:46:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:20,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:21,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:21,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:21,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:22,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:22,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-25 06:46:22,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:46:22,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2170 [2020-09-25 06:46:22,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:22,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:22,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:46:22,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-09-25 06:46:22,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 06:46:22,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:22,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:46:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:22,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:22,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:22,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:46:22,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:22,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:46:22,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:22,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:22,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:46:22,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:22,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:46:22,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:23,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:46:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:23,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:23,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:23,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 06:46:23,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:23,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 06:46:23,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:23,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:23,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:46:23,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:23,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 06:46:23,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:23,082 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:46:23,083 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444547373] [2020-09-25 06:46:23,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:46:23,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 06:46:23,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085984243] [2020-09-25 06:46:23,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:46:23,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:46:23,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:46:23,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:46:23,085 INFO L87 Difference]: Start difference. First operand 1330 states and 1680 transitions. Second operand 5 states. [2020-09-25 06:46:24,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:46:24,768 INFO L93 Difference]: Finished difference Result 3411 states and 4445 transitions. [2020-09-25 06:46:24,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:46:24,769 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-09-25 06:46:24,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:46:24,784 INFO L225 Difference]: With dead ends: 3411 [2020-09-25 06:46:24,784 INFO L226 Difference]: Without dead ends: 1270 [2020-09-25 06:46:24,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:46:24,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2020-09-25 06:46:24,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1257. [2020-09-25 06:46:24,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1257 states. [2020-09-25 06:46:24,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1563 transitions. [2020-09-25 06:46:24,858 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1563 transitions. Word has length 141 [2020-09-25 06:46:24,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:46:24,860 INFO L479 AbstractCegarLoop]: Abstraction has 1257 states and 1563 transitions. [2020-09-25 06:46:24,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:46:24,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1563 transitions. [2020-09-25 06:46:24,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-09-25 06:46:24,870 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:46:24,871 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:46:24,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:46:24,871 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:46:24,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:46:24,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1712229635, now seen corresponding path program 1 times [2020-09-25 06:46:24,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:46:24,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988077646] [2020-09-25 06:46:24,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:46:24,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:24,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:25,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:25,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-09-25 06:46:25,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:25,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 448 [2020-09-25 06:46:25,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:25,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:25,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:46:25,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 06:46:25,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 06:46:25,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:25,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:46:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:25,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:25,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:25,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:46:25,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:25,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 06:46:25,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:25,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:25,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:46:25,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:25,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 06:46:25,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:25,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:46:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:25,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:25,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:25,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 06:46:25,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:25,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 06:46:25,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:25,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:25,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:46:25,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:46:25,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 06:46:25,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:25,640 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:46:25,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [988077646] [2020-09-25 06:46:25,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:46:25,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:46:25,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126000086] [2020-09-25 06:46:25,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:46:25,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:46:25,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:46:25,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:46:25,649 INFO L87 Difference]: Start difference. First operand 1257 states and 1563 transitions. Second operand 7 states. [2020-09-25 06:46:27,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:46:27,724 INFO L93 Difference]: Finished difference Result 3481 states and 4471 transitions. [2020-09-25 06:46:27,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:46:27,728 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 145 [2020-09-25 06:46:27,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:46:27,742 INFO L225 Difference]: With dead ends: 3481 [2020-09-25 06:46:27,742 INFO L226 Difference]: Without dead ends: 2246 [2020-09-25 06:46:27,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:46:27,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2246 states. [2020-09-25 06:46:27,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2246 to 2196. [2020-09-25 06:46:27,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2196 states. [2020-09-25 06:46:27,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 2604 transitions. [2020-09-25 06:46:27,842 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 2604 transitions. Word has length 145 [2020-09-25 06:46:27,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:46:27,842 INFO L479 AbstractCegarLoop]: Abstraction has 2196 states and 2604 transitions. [2020-09-25 06:46:27,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:46:27,843 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 2604 transitions. [2020-09-25 06:46:27,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 06:46:27,849 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:46:27,849 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:46:27,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:46:27,850 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:46:27,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:46:27,850 INFO L82 PathProgramCache]: Analyzing trace with hash 740847210, now seen corresponding path program 1 times [2020-09-25 06:46:27,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:46:27,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262330622] [2020-09-25 06:46:27,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:46:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:27,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:28,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:28,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 06:46:28,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:28,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 358 [2020-09-25 06:46:28,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:28,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:28,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:46:28,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-09-25 06:46:28,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 06:46:28,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:28,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:46:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:28,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:28,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:28,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:46:28,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:28,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 06:46:28,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:28,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:28,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:46:28,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:28,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:46:28,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:28,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:46:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:28,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:28,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:28,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:46:28,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:28,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:46:28,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:28,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:46:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:28,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:46:28,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:28,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 06:46:28,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:28,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:28,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:28,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 06:46:28,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:28,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 06:46:28,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:28,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:46:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:46:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 06:46:28,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:28,567 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 06:46:28,567 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262330622] [2020-09-25 06:46:28,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:46:28,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 06:46:28,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342006973] [2020-09-25 06:46:28,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 06:46:28,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:46:28,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 06:46:28,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:46:28,570 INFO L87 Difference]: Start difference. First operand 2196 states and 2604 transitions. Second operand 8 states. [2020-09-25 06:46:30,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:46:30,626 INFO L93 Difference]: Finished difference Result 4872 states and 5893 transitions. [2020-09-25 06:46:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:46:30,628 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 162 [2020-09-25 06:46:30,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:46:30,643 INFO L225 Difference]: With dead ends: 4872 [2020-09-25 06:46:30,643 INFO L226 Difference]: Without dead ends: 2698 [2020-09-25 06:46:30,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-25 06:46:30,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2698 states. [2020-09-25 06:46:30,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2698 to 2670. [2020-09-25 06:46:30,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2670 states. [2020-09-25 06:46:30,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 3196 transitions. [2020-09-25 06:46:30,727 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 3196 transitions. Word has length 162 [2020-09-25 06:46:30,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:46:30,728 INFO L479 AbstractCegarLoop]: Abstraction has 2670 states and 3196 transitions. [2020-09-25 06:46:30,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 06:46:30,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 3196 transitions. [2020-09-25 06:46:30,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 06:46:30,735 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:46:30,736 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:46:30,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:46:30,736 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:46:30,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:46:30,737 INFO L82 PathProgramCache]: Analyzing trace with hash -451289247, now seen corresponding path program 1 times [2020-09-25 06:46:30,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:46:30,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073135418] [2020-09-25 06:46:30,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:46:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:30,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:31,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:31,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:31,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-09-25 06:46:31,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:46:31,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 845 [2020-09-25 06:46:31,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:31,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:31,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:46:31,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-25 06:46:31,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-25 06:46:31,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:46:31,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:46:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:31,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:31,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:31,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:46:31,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:31,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:46:31,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:31,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:31,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:46:31,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:31,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:46:31,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:46:31,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:46:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:31,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:31,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:31,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:46:31,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:31,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 06:46:31,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:31,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:31,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:46:31,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:31,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 06:46:31,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:31,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 06:46:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:31,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:31,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:31,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:31,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 06:46:31,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:46:31,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 06:46:31,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:31,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:31,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:46:31,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:46:31,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 06:46:31,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:32,087 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 47 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 06:46:32,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073135418] [2020-09-25 06:46:32,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:46:32,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 06:46:32,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358230730] [2020-09-25 06:46:32,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:46:32,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:46:32,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:46:32,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:46:32,091 INFO L87 Difference]: Start difference. First operand 2670 states and 3196 transitions. Second operand 6 states. [2020-09-25 06:46:34,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:46:34,085 INFO L93 Difference]: Finished difference Result 6837 states and 8316 transitions. [2020-09-25 06:46:34,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:46:34,086 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 06:46:34,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:46:34,106 INFO L225 Difference]: With dead ends: 6837 [2020-09-25 06:46:34,106 INFO L226 Difference]: Without dead ends: 3852 [2020-09-25 06:46:34,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:46:34,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3852 states. [2020-09-25 06:46:34,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3852 to 3732. [2020-09-25 06:46:34,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3732 states. [2020-09-25 06:46:34,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 4404 transitions. [2020-09-25 06:46:34,226 INFO L78 Accepts]: Start accepts. Automaton has 3732 states and 4404 transitions. Word has length 167 [2020-09-25 06:46:34,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:46:34,226 INFO L479 AbstractCegarLoop]: Abstraction has 3732 states and 4404 transitions. [2020-09-25 06:46:34,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:46:34,227 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states and 4404 transitions. [2020-09-25 06:46:34,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 06:46:34,238 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:46:34,238 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:46:34,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:46:34,239 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:46:34,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:46:34,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1319203817, now seen corresponding path program 1 times [2020-09-25 06:46:34,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:46:34,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451790894] [2020-09-25 06:46:34,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:46:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:34,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:34,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:34,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:34,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:39,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:39,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-25 06:46:39,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:46:39,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 06:46:39,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:39,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:39,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:46:39,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-25 06:46:39,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 06:46:39,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:39,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:46:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:39,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:39,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:39,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:46:39,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:39,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:46:39,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:39,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:39,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:46:39,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:39,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:46:39,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:39,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:46:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:39,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:39,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:39,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:46:39,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:39,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 06:46:39,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:39,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:46:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:39,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:46:39,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:39,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 06:46:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:39,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:39,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:39,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:46:39,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:39,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 06:46:39,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:39,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:39,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:46:39,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:46:39,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 06:46:39,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:39,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:46:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:39,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:39,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:39,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 06:46:39,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:39,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:46:39,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:39,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:39,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:46:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 06:46:39,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:46:39,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:39,707 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 84 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 06:46:39,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451790894] [2020-09-25 06:46:39,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:46:39,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:46:39,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767479375] [2020-09-25 06:46:39,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:46:39,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:46:39,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:46:39,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:46:39,710 INFO L87 Difference]: Start difference. First operand 3732 states and 4404 transitions. Second operand 7 states. [2020-09-25 06:46:41,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:46:41,877 INFO L93 Difference]: Finished difference Result 7568 states and 8966 transitions. [2020-09-25 06:46:41,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 06:46:41,878 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 193 [2020-09-25 06:46:41,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:46:41,896 INFO L225 Difference]: With dead ends: 7568 [2020-09-25 06:46:41,896 INFO L226 Difference]: Without dead ends: 3857 [2020-09-25 06:46:41,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:46:41,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3857 states. [2020-09-25 06:46:41,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3857 to 3738. [2020-09-25 06:46:41,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3738 states. [2020-09-25 06:46:41,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3738 states to 3738 states and 4326 transitions. [2020-09-25 06:46:41,998 INFO L78 Accepts]: Start accepts. Automaton has 3738 states and 4326 transitions. Word has length 193 [2020-09-25 06:46:41,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:46:41,999 INFO L479 AbstractCegarLoop]: Abstraction has 3738 states and 4326 transitions. [2020-09-25 06:46:41,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:46:41,999 INFO L276 IsEmpty]: Start isEmpty. Operand 3738 states and 4326 transitions. [2020-09-25 06:46:42,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 06:46:42,008 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:46:42,008 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:46:42,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:46:42,009 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:46:42,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:46:42,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1664304064, now seen corresponding path program 1 times [2020-09-25 06:46:42,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:46:42,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17956328] [2020-09-25 06:46:42,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:46:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:42,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:42,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:43,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:43,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 06:46:43,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:46:43,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1476 [2020-09-25 06:46:43,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:43,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:43,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:46:43,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 06:46:43,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 06:46:43,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:46:43,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:46:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:43,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:43,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:43,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:46:43,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:43,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:46:43,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:43,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:46:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:43,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:46:43,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:46:43,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:46:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:43,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:43,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:43,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-25 06:46:43,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:43,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 06:46:43,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:43,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:43,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:46:43,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:43,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:46:43,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:43,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-25 06:46:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:43,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:43,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:43,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:46:43,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:43,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 06:46:43,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:43,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:43,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:46:43,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:46:43,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 06:46:43,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:46:43,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-25 06:46:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:43,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:43,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:43,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 06:46:43,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:43,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:46:43,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:43,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:43,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:46:43,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 06:46:43,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:46:43,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:46:43,844 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 92 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-09-25 06:46:43,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17956328] [2020-09-25 06:46:43,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:46:43,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 06:46:43,845 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438186699] [2020-09-25 06:46:43,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:46:43,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:46:43,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:46:43,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:46:43,846 INFO L87 Difference]: Start difference. First operand 3738 states and 4326 transitions. Second operand 7 states. [2020-09-25 06:46:45,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:46:45,979 INFO L93 Difference]: Finished difference Result 7498 states and 8702 transitions. [2020-09-25 06:46:45,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 06:46:45,984 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-09-25 06:46:45,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:46:46,000 INFO L225 Difference]: With dead ends: 7498 [2020-09-25 06:46:46,000 INFO L226 Difference]: Without dead ends: 3782 [2020-09-25 06:46:46,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:46:46,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3782 states. [2020-09-25 06:46:46,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3782 to 3750. [2020-09-25 06:46:46,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3750 states. [2020-09-25 06:46:46,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3750 states to 3750 states and 4229 transitions. [2020-09-25 06:46:46,090 INFO L78 Accepts]: Start accepts. Automaton has 3750 states and 4229 transitions. Word has length 198 [2020-09-25 06:46:46,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:46:46,090 INFO L479 AbstractCegarLoop]: Abstraction has 3750 states and 4229 transitions. [2020-09-25 06:46:46,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:46:46,091 INFO L276 IsEmpty]: Start isEmpty. Operand 3750 states and 4229 transitions. [2020-09-25 06:46:46,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 06:46:46,100 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:46:46,101 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:46:46,101 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:46:46,101 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:46:46,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:46:46,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1117172267, now seen corresponding path program 1 times [2020-09-25 06:46:46,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:46:46,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072447081] [2020-09-25 06:46:46,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:46:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:46,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:46,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:46,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:46,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:47,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:51,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:51,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 06:46:51,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:46:51,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 06:46:51,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:51,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:51,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:46:51,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-09-25 06:46:51,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 06:46:51,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:51,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:46:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:51,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:51,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:51,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 06:46:51,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:51,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:46:51,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:51,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:51,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:46:51,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:51,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:46:51,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:51,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 06:46:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:51,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:51,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:51,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 06:46:51,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:51,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:46:51,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:51,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:51,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:46:51,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:51,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:46:51,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:51,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 06:46:51,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:51,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:51,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:51,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 06:46:51,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:51,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 06:46:51,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:51,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:51,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:46:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:46:51,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:46:51,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:46:51,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-25 06:46:51,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:51,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:51,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:51,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:51,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 06:46:51,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:46:51,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-25 06:46:51,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:51,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:51,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:46:51,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:46:51,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 06:46:51,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:51,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-09-25 06:46:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:46:51,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:46:51,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:46:51,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 06:46:51,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:46:51,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 06:46:51,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:46:51,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:46:51,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:46:51,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:46:51,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 06:46:51,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:46:51,687 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 133 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.