/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/array-lopstr16/flag_loopdep_simple.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 14:48:00,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 14:48:00,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 14:48:00,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 14:48:00,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 14:48:00,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 14:48:00,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 14:48:00,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 14:48:00,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 14:48:00,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 14:48:00,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 14:48:00,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 14:48:00,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 14:48:00,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 14:48:00,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 14:48:00,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 14:48:00,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 14:48:00,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 14:48:00,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 14:48:00,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 14:48:00,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 14:48:00,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 14:48:00,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 14:48:00,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 14:48:00,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 14:48:00,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 14:48:00,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 14:48:00,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 14:48:00,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 14:48:00,930 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 14:48:00,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 14:48:00,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 14:48:00,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 14:48:00,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 14:48:00,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 14:48:00,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 14:48:00,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 14:48:00,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 14:48:00,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 14:48:00,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 14:48:00,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 14:48:00,947 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 14:48:01,007 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 14:48:01,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 14:48:01,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 14:48:01,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 14:48:01,010 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 14:48:01,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 14:48:01,010 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 14:48:01,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 14:48:01,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 14:48:01,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 14:48:01,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 14:48:01,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 14:48:01,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 14:48:01,012 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 14:48:01,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 14:48:01,012 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 14:48:01,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 14:48:01,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 14:48:01,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 14:48:01,013 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 14:48:01,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 14:48:01,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 14:48:01,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 14:48:01,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 14:48:01,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 14:48:01,014 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 14:48:01,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 14:48:01,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 14:48:01,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 14:48:01,015 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 14:48:01,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 14:48:01,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 14:48:01,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 14:48:01,418 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 14:48:01,419 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 14:48:01,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-lopstr16/flag_loopdep_simple.i [2020-10-27 14:48:01,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6805689c/3f4e1198291d4175aeac30f69d4415c2/FLAG76751f564 [2020-10-27 14:48:02,146 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 14:48:02,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-lopstr16/flag_loopdep_simple.i [2020-10-27 14:48:02,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6805689c/3f4e1198291d4175aeac30f69d4415c2/FLAG76751f564 [2020-10-27 14:48:02,506 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d6805689c/3f4e1198291d4175aeac30f69d4415c2 [2020-10-27 14:48:02,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 14:48:02,517 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 14:48:02,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 14:48:02,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 14:48:02,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 14:48:02,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:48:02" (1/1) ... [2020-10-27 14:48:02,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ddf74aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:48:02, skipping insertion in model container [2020-10-27 14:48:02,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 02:48:02" (1/1) ... [2020-10-27 14:48:02,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 14:48:02,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 14:48:02,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 14:48:02,748 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 14:48:02,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 14:48:02,788 INFO L208 MainTranslator]: Completed translation [2020-10-27 14:48:02,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:48:02 WrapperNode [2020-10-27 14:48:02,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 14:48:02,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 14:48:02,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 14:48:02,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 14:48:02,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:48:02" (1/1) ... [2020-10-27 14:48:02,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:48:02" (1/1) ... [2020-10-27 14:48:02,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:48:02" (1/1) ... [2020-10-27 14:48:02,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:48:02" (1/1) ... [2020-10-27 14:48:02,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:48:02" (1/1) ... [2020-10-27 14:48:02,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:48:02" (1/1) ... [2020-10-27 14:48:02,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:48:02" (1/1) ... [2020-10-27 14:48:02,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 14:48:02,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 14:48:02,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 14:48:02,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 14:48:02,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:48:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 14:48:02,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 14:48:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 14:48:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 14:48:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-27 14:48:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-27 14:48:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 14:48:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 14:48:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 14:48:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 14:48:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 14:48:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 14:48:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 14:48:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-27 14:48:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 14:48:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-27 14:48:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 14:48:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 14:48:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 14:48:02,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 14:48:02,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 14:48:02,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 14:48:02,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 14:48:03,368 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 14:48:03,369 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-27 14:48:03,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:48:03 BoogieIcfgContainer [2020-10-27 14:48:03,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 14:48:03,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 14:48:03,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 14:48:03,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 14:48:03,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 02:48:02" (1/3) ... [2020-10-27 14:48:03,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717c013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:48:03, skipping insertion in model container [2020-10-27 14:48:03,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 02:48:02" (2/3) ... [2020-10-27 14:48:03,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717c013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 02:48:03, skipping insertion in model container [2020-10-27 14:48:03,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 02:48:03" (3/3) ... [2020-10-27 14:48:03,381 INFO L111 eAbstractionObserver]: Analyzing ICFG flag_loopdep_simple.i [2020-10-27 14:48:03,393 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 14:48:03,398 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 14:48:03,412 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 14:48:03,439 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 14:48:03,439 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 14:48:03,439 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 14:48:03,440 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 14:48:03,440 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 14:48:03,440 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 14:48:03,440 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 14:48:03,440 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 14:48:03,458 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-27 14:48:03,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-27 14:48:03,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:48:03,466 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] [2020-10-27 14:48:03,466 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:48:03,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:48:03,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1917384497, now seen corresponding path program 1 times [2020-10-27 14:48:03,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:48:03,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906085032] [2020-10-27 14:48:03,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:48:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:03,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:03,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:03,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:03,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 14:48:03,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:48:03,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-10-27 14:48:03,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:03,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:48:03,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-27 14:48:03,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 14:48:03,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 14:48:04,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:48:04,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:04,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:04,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:04,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:48:04,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:04,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 14:48:04,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:04,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:04,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:04,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:04,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:04,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:48:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:04,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:04,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:04,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:04,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:04,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:48:04,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 14:48:04,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:04,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:04,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 14:48:04,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:04,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:04,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 14:48:04,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906085032] [2020-10-27 14:48:04,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 14:48:04,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-27 14:48:04,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40884259] [2020-10-27 14:48:04,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 14:48:04,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:48:04,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 14:48:04,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-27 14:48:04,159 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 5 states. [2020-10-27 14:48:04,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:48:04,548 INFO L93 Difference]: Finished difference Result 95 states and 139 transitions. [2020-10-27 14:48:04,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 14:48:04,550 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-27 14:48:04,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:48:04,562 INFO L225 Difference]: With dead ends: 95 [2020-10-27 14:48:04,562 INFO L226 Difference]: Without dead ends: 59 [2020-10-27 14:48:04,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-27 14:48:04,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-27 14:48:04,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 31. [2020-10-27 14:48:04,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-27 14:48:04,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-10-27 14:48:04,616 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 22 [2020-10-27 14:48:04,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:48:04,617 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-10-27 14:48:04,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 14:48:04,617 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-10-27 14:48:04,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-27 14:48:04,619 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:48:04,619 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] [2020-10-27 14:48:04,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 14:48:04,619 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:48:04,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:48:04,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1542699897, now seen corresponding path program 1 times [2020-10-27 14:48:04,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:48:04,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724448070] [2020-10-27 14:48:04,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:48:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:04,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:04,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:04,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:05,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:05,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 14:48:05,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:48:05,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-10-27 14:48:05,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:05,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:48:05,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 14:48:05,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:48:05,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:05,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:48:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:05,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:05,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:05,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:48:05,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:05,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 14:48:05,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:05,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:05,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:05,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:05,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:05,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:48:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:05,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:05,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:05,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:05,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:05,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:48:05,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 14:48:05,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 14:48:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:48:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:48:05,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:05,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 14:48:05,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724448070] [2020-10-27 14:48:05,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 14:48:05,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 14:48:05,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270580148] [2020-10-27 14:48:05,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 14:48:05,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:48:05,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 14:48:05,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 14:48:05,281 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 7 states. [2020-10-27 14:48:05,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:48:05,557 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2020-10-27 14:48:05,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 14:48:05,557 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2020-10-27 14:48:05,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:48:05,559 INFO L225 Difference]: With dead ends: 61 [2020-10-27 14:48:05,559 INFO L226 Difference]: Without dead ends: 33 [2020-10-27 14:48:05,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-27 14:48:05,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-27 14:48:05,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2020-10-27 14:48:05,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-27 14:48:05,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-10-27 14:48:05,569 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 25 [2020-10-27 14:48:05,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:48:05,570 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-10-27 14:48:05,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 14:48:05,570 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-10-27 14:48:05,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-27 14:48:05,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:48:05,571 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] [2020-10-27 14:48:05,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 14:48:05,572 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:48:05,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:48:05,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1385738581, now seen corresponding path program 1 times [2020-10-27 14:48:05,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:48:05,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [883933155] [2020-10-27 14:48:05,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:48:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:05,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:05,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:05,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:06,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:06,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-27 14:48:06,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:48:06,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1066 [2020-10-27 14:48:06,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:06,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 14:48:06,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 14:48:06,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 14:48:06,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:06,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:48:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:06,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:06,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:06,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:48:06,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:06,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:48:06,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:06,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:06,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:06,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:06,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:06,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:48:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:06,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:06,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:06,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:06,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 14:48:06,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:48:06,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 14:48:06,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:06,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 14:48:06,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:48:06,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 14:48:06,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:06,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 14:48:06,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [883933155] [2020-10-27 14:48:06,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:48:06,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 14:48:06,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946851774] [2020-10-27 14:48:06,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 14:48:06,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:48:06,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 14:48:06,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-27 14:48:06,787 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 9 states. [2020-10-27 14:48:07,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:48:07,138 INFO L93 Difference]: Finished difference Result 71 states and 82 transitions. [2020-10-27 14:48:07,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 14:48:07,139 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-10-27 14:48:07,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:48:07,140 INFO L225 Difference]: With dead ends: 71 [2020-10-27 14:48:07,140 INFO L226 Difference]: Without dead ends: 50 [2020-10-27 14:48:07,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-10-27 14:48:07,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-27 14:48:07,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 37. [2020-10-27 14:48:07,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-27 14:48:07,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2020-10-27 14:48:07,150 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 27 [2020-10-27 14:48:07,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:48:07,152 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2020-10-27 14:48:07,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 14:48:07,152 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2020-10-27 14:48:07,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-27 14:48:07,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:48:07,154 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:48:07,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 14:48:07,154 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:48:07,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:48:07,155 INFO L82 PathProgramCache]: Analyzing trace with hash 414127001, now seen corresponding path program 2 times [2020-10-27 14:48:07,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:48:07,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777183771] [2020-10-27 14:48:07,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:48:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:07,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:07,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:07,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:08,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:08,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-27 14:48:08,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:48:08,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1791 [2020-10-27 14:48:08,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:08,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 14:48:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-27 14:48:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 14:48:08,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:09,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:48:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:09,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:09,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:09,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:48:09,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:09,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:48:09,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:09,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:09,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:09,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:09,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:09,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:48:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:09,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:09,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:09,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:09,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-27 14:48:09,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:48:09,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-27 14:48:09,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:09,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 14:48:09,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:48:09,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 14:48:09,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:09,312 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-27 14:48:09,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777183771] [2020-10-27 14:48:09,313 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:48:09,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 14:48:09,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432575723] [2020-10-27 14:48:09,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 14:48:09,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:48:09,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 14:48:09,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-27 14:48:09,316 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 15 states. [2020-10-27 14:48:10,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:48:10,080 INFO L93 Difference]: Finished difference Result 73 states and 81 transitions. [2020-10-27 14:48:10,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 14:48:10,081 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 32 [2020-10-27 14:48:10,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:48:10,082 INFO L225 Difference]: With dead ends: 73 [2020-10-27 14:48:10,082 INFO L226 Difference]: Without dead ends: 49 [2020-10-27 14:48:10,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=110, Invalid=592, Unknown=0, NotChecked=0, Total=702 [2020-10-27 14:48:10,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-27 14:48:10,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2020-10-27 14:48:10,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-27 14:48:10,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2020-10-27 14:48:10,101 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 32 [2020-10-27 14:48:10,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:48:10,102 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2020-10-27 14:48:10,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 14:48:10,102 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-10-27 14:48:10,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-27 14:48:10,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:48:10,104 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-10-27 14:48:10,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 14:48:10,104 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:48:10,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:48:10,105 INFO L82 PathProgramCache]: Analyzing trace with hash -488205430, now seen corresponding path program 1 times [2020-10-27 14:48:10,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:48:10,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702490014] [2020-10-27 14:48:10,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:48:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:10,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:10,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:10,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:10,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:10,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:13,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:13,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 14:48:13,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 14:48:13,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3671 [2020-10-27 14:48:13,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:13,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:48:13,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-27 14:48:13,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 14:48:13,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:13,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:48:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:13,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:13,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:13,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:48:13,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:13,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:48:13,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:13,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:13,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:13,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:13,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:13,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:48:13,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:13,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:13,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:13,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:13,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 14:48:13,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:48:13,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 14:48:13,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 14:48:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:48:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 14:48:13,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:13,965 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 14:48:13,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702490014] [2020-10-27 14:48:13,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:48:13,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 14:48:13,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966656112] [2020-10-27 14:48:13,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 14:48:13,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:48:13,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 14:48:13,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-27 14:48:13,976 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 10 states. [2020-10-27 14:48:14,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:48:14,386 INFO L93 Difference]: Finished difference Result 83 states and 92 transitions. [2020-10-27 14:48:14,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 14:48:14,387 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2020-10-27 14:48:14,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:48:14,389 INFO L225 Difference]: With dead ends: 83 [2020-10-27 14:48:14,389 INFO L226 Difference]: Without dead ends: 49 [2020-10-27 14:48:14,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2020-10-27 14:48:14,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-27 14:48:14,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2020-10-27 14:48:14,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-27 14:48:14,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2020-10-27 14:48:14,403 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 37 [2020-10-27 14:48:14,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:48:14,403 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2020-10-27 14:48:14,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 14:48:14,404 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2020-10-27 14:48:14,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-27 14:48:14,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:48:14,405 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-10-27 14:48:14,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 14:48:14,406 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:48:14,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:48:14,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1839912620, now seen corresponding path program 1 times [2020-10-27 14:48:14,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:48:14,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536099311] [2020-10-27 14:48:14,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:48:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:14,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:14,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:14,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:17,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:17,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 14:48:17,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:48:17,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2629 [2020-10-27 14:48:17,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:17,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 14:48:17,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 14:48:17,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 14:48:17,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:17,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:48:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:17,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:17,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:17,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:48:17,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:17,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:48:17,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:17,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:17,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:17,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:17,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:48:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:17,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:17,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:17,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:17,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 14:48:17,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:48:17,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 14:48:17,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:17,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 14:48:17,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:48:17,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 14:48:17,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:17,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-27 14:48:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:17,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:17,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:17,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:17,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:17,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:48:17,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:17,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:17,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:48:17,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:17,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:17,272 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 14:48:17,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536099311] [2020-10-27 14:48:17,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:48:17,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-27 14:48:17,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772081026] [2020-10-27 14:48:17,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-27 14:48:17,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:48:17,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-27 14:48:17,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-27 14:48:17,275 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand 13 states. [2020-10-27 14:48:17,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:48:17,736 INFO L93 Difference]: Finished difference Result 99 states and 106 transitions. [2020-10-27 14:48:17,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-27 14:48:17,736 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 45 [2020-10-27 14:48:17,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:48:17,738 INFO L225 Difference]: With dead ends: 99 [2020-10-27 14:48:17,738 INFO L226 Difference]: Without dead ends: 68 [2020-10-27 14:48:17,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2020-10-27 14:48:17,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-27 14:48:17,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 53. [2020-10-27 14:48:17,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-27 14:48:17,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 55 transitions. [2020-10-27 14:48:17,749 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 55 transitions. Word has length 45 [2020-10-27 14:48:17,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:48:17,749 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 55 transitions. [2020-10-27 14:48:17,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-27 14:48:17,749 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 55 transitions. [2020-10-27 14:48:17,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-27 14:48:17,751 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:48:17,751 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 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] [2020-10-27 14:48:17,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 14:48:17,751 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:48:17,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:48:17,752 INFO L82 PathProgramCache]: Analyzing trace with hash 168080164, now seen corresponding path program 2 times [2020-10-27 14:48:17,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:48:17,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420028546] [2020-10-27 14:48:17,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:48:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:17,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:17,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:18,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:21,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:21,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-27 14:48:21,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:48:21,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3395 [2020-10-27 14:48:21,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:21,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 14:48:21,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 14:48:21,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 14:48:21,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:21,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:48:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:21,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:21,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:21,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:48:21,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:21,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:48:21,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:21,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:21,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:21,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:21,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:21,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:48:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:21,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:21,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:21,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:21,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 14:48:21,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:48:21,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-27 14:48:21,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:21,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 14:48:21,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:48:21,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 14:48:21,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:21,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 14:48:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:21,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:21,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:21,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:21,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:21,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:48:21,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:21,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:21,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:48:21,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:21,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:21,420 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 14:48:21,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1420028546] [2020-10-27 14:48:21,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:48:21,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-27 14:48:21,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535562109] [2020-10-27 14:48:21,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 14:48:21,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:48:21,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 14:48:21,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2020-10-27 14:48:21,423 INFO L87 Difference]: Start difference. First operand 53 states and 55 transitions. Second operand 15 states. [2020-10-27 14:48:21,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:48:21,950 INFO L93 Difference]: Finished difference Result 112 states and 120 transitions. [2020-10-27 14:48:21,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 14:48:21,951 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 50 [2020-10-27 14:48:21,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:48:21,952 INFO L225 Difference]: With dead ends: 112 [2020-10-27 14:48:21,952 INFO L226 Difference]: Without dead ends: 78 [2020-10-27 14:48:21,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2020-10-27 14:48:21,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-10-27 14:48:21,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 58. [2020-10-27 14:48:21,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-27 14:48:21,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-10-27 14:48:21,979 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 50 [2020-10-27 14:48:21,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:48:21,979 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-10-27 14:48:21,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 14:48:21,980 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-10-27 14:48:21,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-27 14:48:21,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:48:21,982 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 4, 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] [2020-10-27 14:48:21,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 14:48:21,983 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:48:21,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:48:21,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1927391664, now seen corresponding path program 3 times [2020-10-27 14:48:21,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:48:21,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202919672] [2020-10-27 14:48:21,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:48:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:22,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:22,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:22,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:26,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:26,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-27 14:48:26,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:48:26,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4198 [2020-10-27 14:48:26,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 14:48:26,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-27 14:48:26,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-27 14:48:26,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:26,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:48:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:26,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:26,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:26,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:48:26,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:26,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:48:26,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:26,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:26,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:26,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:26,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:26,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:48:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:26,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:26,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:26,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:26,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-27 14:48:26,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:48:26,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 14:48:26,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:26,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 14:48:26,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:48:26,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 14:48:26,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:26,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-27 14:48:26,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:26,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:26,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:26,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:26,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:26,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:48:26,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:26,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:48:26,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:26,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:48:26,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:26,667 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 2 proven. 54 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-27 14:48:26,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202919672] [2020-10-27 14:48:26,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:48:26,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-27 14:48:26,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600816221] [2020-10-27 14:48:26,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-27 14:48:26,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:48:26,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-27 14:48:26,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2020-10-27 14:48:26,671 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 21 states. [2020-10-27 14:48:27,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:48:27,710 INFO L93 Difference]: Finished difference Result 109 states and 114 transitions. [2020-10-27 14:48:27,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 14:48:27,711 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 55 [2020-10-27 14:48:27,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:48:27,712 INFO L225 Difference]: With dead ends: 109 [2020-10-27 14:48:27,713 INFO L226 Difference]: Without dead ends: 72 [2020-10-27 14:48:27,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=198, Invalid=1134, Unknown=0, NotChecked=0, Total=1332 [2020-10-27 14:48:27,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-27 14:48:27,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2020-10-27 14:48:27,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-27 14:48:27,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 71 transitions. [2020-10-27 14:48:27,736 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 71 transitions. Word has length 55 [2020-10-27 14:48:27,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:48:27,737 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 71 transitions. [2020-10-27 14:48:27,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-27 14:48:27,737 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2020-10-27 14:48:27,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-27 14:48:27,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:48:27,741 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:48:27,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 14:48:27,741 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:48:27,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:48:27,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1094834973, now seen corresponding path program 4 times [2020-10-27 14:48:27,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:48:27,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926504266] [2020-10-27 14:48:27,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:48:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:27,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:27,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:28,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:32,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:32,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-27 14:48:32,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:48:32,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4593 [2020-10-27 14:48:32,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:32,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 14:48:32,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-27 14:48:32,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 14:48:32,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:32,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:48:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:32,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:32,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:32,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:48:32,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:32,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:48:32,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:32,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:32,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:32,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:32,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:32,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:48:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:32,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:32,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:32,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:32,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-27 14:48:32,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:48:32,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-27 14:48:32,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:32,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 14:48:32,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:48:32,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 14:48:32,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:32,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-27 14:48:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:32,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:32,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:32,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:32,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:32,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:48:32,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:32,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:48:32,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:32,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:48:32,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:32,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 14:48:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:32,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:32,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:32,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:32,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:32,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:48:32,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:32,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:48:32,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:32,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:48:32,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:32,935 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 4 proven. 80 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-27 14:48:32,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926504266] [2020-10-27 14:48:32,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:48:32,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-27 14:48:32,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937904736] [2020-10-27 14:48:32,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-27 14:48:32,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:48:32,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-27 14:48:32,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2020-10-27 14:48:32,938 INFO L87 Difference]: Start difference. First operand 69 states and 71 transitions. Second operand 24 states. [2020-10-27 14:48:34,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:48:34,303 INFO L93 Difference]: Finished difference Result 129 states and 134 transitions. [2020-10-27 14:48:34,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-27 14:48:34,305 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 66 [2020-10-27 14:48:34,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:48:34,306 INFO L225 Difference]: With dead ends: 129 [2020-10-27 14:48:34,306 INFO L226 Difference]: Without dead ends: 83 [2020-10-27 14:48:34,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=239, Invalid=1567, Unknown=0, NotChecked=0, Total=1806 [2020-10-27 14:48:34,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-27 14:48:34,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2020-10-27 14:48:34,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-27 14:48:34,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 82 transitions. [2020-10-27 14:48:34,319 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 82 transitions. Word has length 66 [2020-10-27 14:48:34,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:48:34,319 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 82 transitions. [2020-10-27 14:48:34,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-27 14:48:34,320 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 82 transitions. [2020-10-27 14:48:34,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-27 14:48:34,321 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:48:34,321 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:48:34,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 14:48:34,321 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:48:34,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:48:34,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1146766380, now seen corresponding path program 5 times [2020-10-27 14:48:34,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:48:34,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356157659] [2020-10-27 14:48:34,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:48:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:34,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:34,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:35,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:38,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:38,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-27 14:48:38,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:48:38,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4452 [2020-10-27 14:48:38,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:38,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 14:48:38,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-27 14:48:38,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 14:48:38,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:38,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:48:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:38,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:38,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:38,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:48:38,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:38,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:48:38,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:38,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:38,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:38,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:38,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:38,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:48:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:38,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:38,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:38,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:38,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 14:48:38,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:48:38,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-27 14:48:38,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:38,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 14:48:38,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:48:38,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 14:48:38,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:39,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 14:48:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:39,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:39,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:39,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:39,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:39,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:48:39,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:39,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:39,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:48:39,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:39,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:39,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 14:48:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:39,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:39,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:39,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:39,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:39,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:48:39,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:39,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:39,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:48:39,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:39,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:39,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 14:48:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:39,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:39,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:39,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:39,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:39,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:48:39,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:39,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:39,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:48:39,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:39,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:39,184 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 6 proven. 86 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-27 14:48:39,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356157659] [2020-10-27 14:48:39,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:48:39,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-27 14:48:39,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380299309] [2020-10-27 14:48:39,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-27 14:48:39,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:48:39,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-27 14:48:39,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2020-10-27 14:48:39,187 INFO L87 Difference]: Start difference. First operand 80 states and 82 transitions. Second operand 19 states. [2020-10-27 14:48:39,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:48:39,989 INFO L93 Difference]: Finished difference Result 155 states and 162 transitions. [2020-10-27 14:48:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 14:48:39,990 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 77 [2020-10-27 14:48:39,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:48:39,992 INFO L225 Difference]: With dead ends: 155 [2020-10-27 14:48:39,992 INFO L226 Difference]: Without dead ends: 100 [2020-10-27 14:48:39,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2020-10-27 14:48:39,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-27 14:48:40,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 85. [2020-10-27 14:48:40,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-27 14:48:40,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 87 transitions. [2020-10-27 14:48:40,005 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 87 transitions. Word has length 77 [2020-10-27 14:48:40,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:48:40,005 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 87 transitions. [2020-10-27 14:48:40,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-27 14:48:40,006 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2020-10-27 14:48:40,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-27 14:48:40,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:48:40,007 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:48:40,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 14:48:40,007 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:48:40,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:48:40,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1274686964, now seen corresponding path program 6 times [2020-10-27 14:48:40,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:48:40,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869145854] [2020-10-27 14:48:40,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:48:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:40,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:40,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:41,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:45,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:45,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-27 14:48:45,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:48:45,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-27 14:48:45,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:45,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 14:48:45,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-27 14:48:45,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-27 14:48:45,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:45,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:48:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:45,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:45,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:45,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:48:45,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:45,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:48:45,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:45,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:45,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:45,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:45,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:45,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:48:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:45,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:45,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:45,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:45,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-27 14:48:45,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:48:45,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-27 14:48:45,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 14:48:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:48:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-27 14:48:45,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:45,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-27 14:48:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:45,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:45,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:45,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:45,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:45,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:48:45,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:45,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:48:45,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:45,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:48:45,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:45,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 14:48:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:45,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:45,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:45,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:45,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:45,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:48:45,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:45,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:48:45,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:45,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:48:45,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:45,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 14:48:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:45,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:45,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:45,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:45,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:45,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:48:45,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:45,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:48:45,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:45,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:48:45,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:45,725 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 6 proven. 138 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-27 14:48:45,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869145854] [2020-10-27 14:48:45,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:48:45,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-27 14:48:45,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319848405] [2020-10-27 14:48:45,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-27 14:48:45,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:48:45,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-27 14:48:45,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2020-10-27 14:48:45,728 INFO L87 Difference]: Start difference. First operand 85 states and 87 transitions. Second operand 28 states. [2020-10-27 14:48:47,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:48:47,510 INFO L93 Difference]: Finished difference Result 157 states and 162 transitions. [2020-10-27 14:48:47,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-27 14:48:47,510 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 82 [2020-10-27 14:48:47,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:48:47,511 INFO L225 Difference]: With dead ends: 157 [2020-10-27 14:48:47,512 INFO L226 Difference]: Without dead ends: 99 [2020-10-27 14:48:47,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=315, Invalid=2135, Unknown=0, NotChecked=0, Total=2450 [2020-10-27 14:48:47,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-27 14:48:47,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 96. [2020-10-27 14:48:47,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-27 14:48:47,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 98 transitions. [2020-10-27 14:48:47,527 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 98 transitions. Word has length 82 [2020-10-27 14:48:47,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:48:47,528 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 98 transitions. [2020-10-27 14:48:47,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-27 14:48:47,530 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 98 transitions. [2020-10-27 14:48:47,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-27 14:48:47,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:48:47,532 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:48:47,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 14:48:47,532 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:48:47,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:48:47,533 INFO L82 PathProgramCache]: Analyzing trace with hash 357652771, now seen corresponding path program 7 times [2020-10-27 14:48:47,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:48:47,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [350382025] [2020-10-27 14:48:47,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:48:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:47,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:47,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:48,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:52,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:52,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 14:48:52,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:48:52,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4728 [2020-10-27 14:48:52,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:52,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 14:48:52,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-27 14:48:52,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 14:48:52,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:52,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:48:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:52,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:52,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:52,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:48:52,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:52,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 14:48:52,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:52,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:52,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:52,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:52,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:52,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:48:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:52,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:52,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:52,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:52,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 14:48:52,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:48:52,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-10-27 14:48:52,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:52,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 14:48:52,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:48:52,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 14:48:52,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:53,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 14:48:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:53,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:53,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:53,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:53,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:53,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:48:53,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:53,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:48:53,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:53,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:48:53,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:53,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-27 14:48:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:53,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:53,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:53,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:53,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:53,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:48:53,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:53,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:48:53,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:53,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:48:53,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:53,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-27 14:48:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:53,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:53,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:53,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:53,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:53,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:48:53,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:48:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:53,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:48:53,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:53,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 14:48:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:53,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:53,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:53,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:53,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:53,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:48:53,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:53,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:48:53,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:53,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:48:53,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:53,221 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 8 proven. 177 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-27 14:48:53,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [350382025] [2020-10-27 14:48:53,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:48:53,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-27 14:48:53,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044577676] [2020-10-27 14:48:53,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-27 14:48:53,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:48:53,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-27 14:48:53,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=816, Unknown=0, NotChecked=0, Total=930 [2020-10-27 14:48:53,223 INFO L87 Difference]: Start difference. First operand 96 states and 98 transitions. Second operand 31 states. [2020-10-27 14:48:55,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:48:55,442 INFO L93 Difference]: Finished difference Result 179 states and 184 transitions. [2020-10-27 14:48:55,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 14:48:55,443 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 93 [2020-10-27 14:48:55,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:48:55,445 INFO L225 Difference]: With dead ends: 179 [2020-10-27 14:48:55,445 INFO L226 Difference]: Without dead ends: 112 [2020-10-27 14:48:55,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=362, Invalid=2608, Unknown=0, NotChecked=0, Total=2970 [2020-10-27 14:48:55,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-27 14:48:55,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2020-10-27 14:48:55,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-27 14:48:55,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 109 transitions. [2020-10-27 14:48:55,468 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 109 transitions. Word has length 93 [2020-10-27 14:48:55,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:48:55,468 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 109 transitions. [2020-10-27 14:48:55,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-27 14:48:55,468 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 109 transitions. [2020-10-27 14:48:55,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-27 14:48:55,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:48:55,470 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:48:55,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 14:48:55,471 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:48:55,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:48:55,471 INFO L82 PathProgramCache]: Analyzing trace with hash 375076336, now seen corresponding path program 8 times [2020-10-27 14:48:55,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:48:55,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1796606657] [2020-10-27 14:48:55,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:48:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:55,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:55,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:57,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:57,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-27 14:48:57,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:48:57,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2403 [2020-10-27 14:48:57,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:57,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 14:48:57,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 14:48:57,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 14:48:57,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:57,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:48:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:57,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:57,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:57,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:48:57,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:57,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:48:57,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:57,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:57,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:48:57,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:57,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:57,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:48:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:57,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:57,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:58,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:58,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 14:48:58,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:48:58,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-10-27 14:48:58,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:58,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 14:48:58,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:48:58,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 14:48:58,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:58,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-27 14:48:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:58,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:58,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:58,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:58,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:58,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:48:58,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:58,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:58,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:48:58,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:58,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:58,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-27 14:48:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:58,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:58,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:58,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:58,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:58,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:48:58,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:58,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:58,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:48:58,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:58,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:58,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-27 14:48:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:58,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:58,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:58,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:58,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:58,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:48:58,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:58,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:58,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:48:58,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:58,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:58,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-27 14:48:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:58,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:58,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:58,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:58,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:58,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:48:58,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:58,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:58,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:48:58,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:58,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:58,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-27 14:48:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:58,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:58,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:48:58,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:48:58,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:48:58,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:48:58,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:48:58,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:48:58,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:48:58,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:48:58,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:48:58,515 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 10 proven. 156 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-10-27 14:48:58,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1796606657] [2020-10-27 14:48:58,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:48:58,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-27 14:48:58,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698524842] [2020-10-27 14:48:58,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-27 14:48:58,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:48:58,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-27 14:48:58,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2020-10-27 14:48:58,518 INFO L87 Difference]: Start difference. First operand 107 states and 109 transitions. Second operand 23 states. [2020-10-27 14:48:59,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:48:59,397 INFO L93 Difference]: Finished difference Result 198 states and 204 transitions. [2020-10-27 14:48:59,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-27 14:48:59,398 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 104 [2020-10-27 14:48:59,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:48:59,399 INFO L225 Difference]: With dead ends: 198 [2020-10-27 14:48:59,399 INFO L226 Difference]: Without dead ends: 122 [2020-10-27 14:48:59,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=343, Invalid=1063, Unknown=0, NotChecked=0, Total=1406 [2020-10-27 14:48:59,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-27 14:48:59,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 112. [2020-10-27 14:48:59,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-27 14:48:59,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 114 transitions. [2020-10-27 14:48:59,421 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 114 transitions. Word has length 104 [2020-10-27 14:48:59,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:48:59,421 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 114 transitions. [2020-10-27 14:48:59,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-27 14:48:59,421 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 114 transitions. [2020-10-27 14:48:59,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-27 14:48:59,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:48:59,422 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:48:59,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 14:48:59,423 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:48:59,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:48:59,423 INFO L82 PathProgramCache]: Analyzing trace with hash -335954172, now seen corresponding path program 9 times [2020-10-27 14:48:59,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:48:59,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1824650109] [2020-10-27 14:48:59,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:48:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:48:59,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:48:59,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:01,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:04,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:04,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-27 14:49:04,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:49:04,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 14:49:04,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:04,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 14:49:04,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-27 14:49:04,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 14:49:04,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:04,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:49:04,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:04,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:04,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:04,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:49:04,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:04,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 14:49:04,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:04,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:04,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:04,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:04,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:04,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:49:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:04,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:04,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:04,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:04,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 14:49:04,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:49:04,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-10-27 14:49:04,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:04,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 14:49:04,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:49:04,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-27 14:49:04,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:05,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 14:49:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:05,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:05,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:05,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:05,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:05,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:05,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:05,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:05,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-27 14:49:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:05,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:05,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:05,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:05,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:05,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:49:05,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:05,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:05,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:05,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:05,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:05,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 14:49:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:05,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:05,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:05,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:05,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:05,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:05,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:05,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:05,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:05,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:05,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:05,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 14:49:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:05,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:05,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:05,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:05,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:05,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:05,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:05,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:05,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:05,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:05,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:05,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 14:49:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:05,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:05,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:05,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:05,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:05,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:49:05,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:05,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:05,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:05,164 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 10 proven. 195 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-10-27 14:49:05,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1824650109] [2020-10-27 14:49:05,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:49:05,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-27 14:49:05,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239893755] [2020-10-27 14:49:05,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-27 14:49:05,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:49:05,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-27 14:49:05,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2020-10-27 14:49:05,166 INFO L87 Difference]: Start difference. First operand 112 states and 114 transitions. Second operand 25 states. [2020-10-27 14:49:06,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:49:06,290 INFO L93 Difference]: Finished difference Result 211 states and 218 transitions. [2020-10-27 14:49:06,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-27 14:49:06,291 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 109 [2020-10-27 14:49:06,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:49:06,293 INFO L225 Difference]: With dead ends: 211 [2020-10-27 14:49:06,293 INFO L226 Difference]: Without dead ends: 132 [2020-10-27 14:49:06,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=395, Invalid=1245, Unknown=0, NotChecked=0, Total=1640 [2020-10-27 14:49:06,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-27 14:49:06,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 117. [2020-10-27 14:49:06,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-27 14:49:06,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 119 transitions. [2020-10-27 14:49:06,305 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 119 transitions. Word has length 109 [2020-10-27 14:49:06,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:49:06,306 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 119 transitions. [2020-10-27 14:49:06,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-27 14:49:06,306 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 119 transitions. [2020-10-27 14:49:06,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-27 14:49:06,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:49:06,307 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:49:06,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 14:49:06,308 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:49:06,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:49:06,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1568284428, now seen corresponding path program 10 times [2020-10-27 14:49:06,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:49:06,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588538764] [2020-10-27 14:49:06,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:49:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:06,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:06,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:08,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:11,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:11,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-27 14:49:11,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:49:11,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-27 14:49:11,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:11,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 14:49:11,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-27 14:49:11,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 14:49:11,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:11,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:49:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:11,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:11,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:11,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:49:11,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:11,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:49:11,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:11,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:11,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:11,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:11,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:11,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:49:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:11,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:11,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:11,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:11,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-27 14:49:11,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:49:11,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-27 14:49:11,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:11,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 14:49:11,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:49:11,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 14:49:11,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:11,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-27 14:49:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:11,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:11,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:11,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:11,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:11,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:49:11,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:11,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:11,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:11,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:11,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:11,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-27 14:49:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:11,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:11,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:11,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:11,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:11,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:49:11,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:11,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:11,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:11,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:11,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:11,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 14:49:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:11,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:11,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:11,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:11,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:11,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:49:11,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:11,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:11,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-27 14:49:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:11,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:11,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:11,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:11,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:11,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:49:11,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:11,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:11,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:11,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:11,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:11,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 14:49:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:11,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:11,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:11,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:11,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:11,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:11,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:11,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:11,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:11,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:11,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:11,955 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 10 proven. 239 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2020-10-27 14:49:11,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588538764] [2020-10-27 14:49:11,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:49:11,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-27 14:49:11,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175728159] [2020-10-27 14:49:11,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-27 14:49:11,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:49:11,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-27 14:49:11,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2020-10-27 14:49:11,958 INFO L87 Difference]: Start difference. First operand 117 states and 119 transitions. Second operand 27 states. [2020-10-27 14:49:13,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:49:13,165 INFO L93 Difference]: Finished difference Result 224 states and 232 transitions. [2020-10-27 14:49:13,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-27 14:49:13,166 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 114 [2020-10-27 14:49:13,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:49:13,167 INFO L225 Difference]: With dead ends: 224 [2020-10-27 14:49:13,168 INFO L226 Difference]: Without dead ends: 142 [2020-10-27 14:49:13,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=451, Invalid=1441, Unknown=0, NotChecked=0, Total=1892 [2020-10-27 14:49:13,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-27 14:49:13,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 122. [2020-10-27 14:49:13,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-27 14:49:13,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 124 transitions. [2020-10-27 14:49:13,181 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 124 transitions. Word has length 114 [2020-10-27 14:49:13,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:49:13,181 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 124 transitions. [2020-10-27 14:49:13,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-27 14:49:13,182 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 124 transitions. [2020-10-27 14:49:13,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-27 14:49:13,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:49:13,183 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 8, 8, 8, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:49:13,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 14:49:13,183 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:49:13,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:49:13,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1108043776, now seen corresponding path program 11 times [2020-10-27 14:49:13,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:49:13,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [769731113] [2020-10-27 14:49:13,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:49:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:13,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:13,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:15,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:18,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:18,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-27 14:49:18,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:49:18,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-27 14:49:18,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:18,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 14:49:18,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-27 14:49:18,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 14:49:18,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:18,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:49:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:18,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:18,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:18,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:49:18,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:18,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:49:18,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:18,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:18,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:18,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:18,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:18,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:49:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:18,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:18,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:18,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:18,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-27 14:49:18,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:49:18,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-27 14:49:18,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:18,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 14:49:18,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:49:18,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-27 14:49:18,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:19,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-27 14:49:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:19,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:19,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:19,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:19,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:19,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:49:19,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:19,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:49:19,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:19,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:49:19,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:19,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 14:49:19,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:19,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:19,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:19,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:19,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:19,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:19,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:19,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:49:19,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:19,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:49:19,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:19,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 14:49:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:19,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:19,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:19,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:19,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:19,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:19,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:19,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:49:19,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:19,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:49:19,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:19,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 14:49:19,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:19,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:19,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:19,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:19,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:19,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:49:19,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:19,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:49:19,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:19,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:49:19,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:19,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 14:49:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:19,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:19,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:19,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:19,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:19,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:19,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:19,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:49:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:19,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:49:19,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:19,509 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 10 proven. 346 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-10-27 14:49:19,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [769731113] [2020-10-27 14:49:19,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:49:19,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-27 14:49:19,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173611901] [2020-10-27 14:49:19,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-27 14:49:19,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:49:19,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-27 14:49:19,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1156, Unknown=0, NotChecked=0, Total=1332 [2020-10-27 14:49:19,512 INFO L87 Difference]: Start difference. First operand 122 states and 124 transitions. Second operand 37 states. [2020-10-27 14:49:22,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:49:22,440 INFO L93 Difference]: Finished difference Result 221 states and 226 transitions. [2020-10-27 14:49:22,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-27 14:49:22,444 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 119 [2020-10-27 14:49:22,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:49:22,445 INFO L225 Difference]: With dead ends: 221 [2020-10-27 14:49:22,446 INFO L226 Difference]: Without dead ends: 136 [2020-10-27 14:49:22,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=553, Invalid=3737, Unknown=0, NotChecked=0, Total=4290 [2020-10-27 14:49:22,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-27 14:49:22,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 133. [2020-10-27 14:49:22,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-27 14:49:22,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 135 transitions. [2020-10-27 14:49:22,459 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 135 transitions. Word has length 119 [2020-10-27 14:49:22,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:49:22,459 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 135 transitions. [2020-10-27 14:49:22,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-27 14:49:22,459 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 135 transitions. [2020-10-27 14:49:22,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-27 14:49:22,461 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:49:22,461 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:49:22,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 14:49:22,461 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:49:22,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:49:22,462 INFO L82 PathProgramCache]: Analyzing trace with hash 22329651, now seen corresponding path program 12 times [2020-10-27 14:49:22,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:49:22,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1458108763] [2020-10-27 14:49:22,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:49:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:22,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:22,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:25,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:27,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:27,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-27 14:49:27,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:49:27,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-27 14:49:27,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:27,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 14:49:27,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-27 14:49:27,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 14:49:27,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:27,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:49:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:27,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:27,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:27,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:49:27,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:27,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:49:27,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:27,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:27,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:27,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:27,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:27,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:49:27,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:27,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:27,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:27,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:27,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-27 14:49:27,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:49:27,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-27 14:49:27,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:27,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 14:49:27,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:49:27,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 14:49:27,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:28,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-27 14:49:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:28,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:28,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:28,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:28,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:28,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:49:28,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:28,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:28,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:28,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:28,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:28,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-27 14:49:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:28,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:28,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:28,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:28,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:28,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:28,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:28,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:28,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:28,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:28,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:28,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 14:49:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:28,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:28,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:28,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:28,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:28,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:28,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:28,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:28,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:28,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:28,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:28,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 14:49:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:28,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:28,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:28,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:28,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:28,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:28,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:28,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:28,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:28,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 14:49:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:28,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:28,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:28,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:28,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:28,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:28,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:28,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:28,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:28,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:28,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:28,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 14:49:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:28,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:28,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:28,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:28,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:28,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:28,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:28,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:28,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:28,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:28,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:28,218 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 12 proven. 317 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-10-27 14:49:28,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1458108763] [2020-10-27 14:49:28,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:49:28,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-27 14:49:28,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029775746] [2020-10-27 14:49:28,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-27 14:49:28,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:49:28,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-27 14:49:28,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=657, Unknown=0, NotChecked=0, Total=870 [2020-10-27 14:49:28,221 INFO L87 Difference]: Start difference. First operand 133 states and 135 transitions. Second operand 30 states. [2020-10-27 14:49:29,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:49:29,652 INFO L93 Difference]: Finished difference Result 252 states and 260 transitions. [2020-10-27 14:49:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-27 14:49:29,652 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 130 [2020-10-27 14:49:29,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:49:29,654 INFO L225 Difference]: With dead ends: 252 [2020-10-27 14:49:29,654 INFO L226 Difference]: Without dead ends: 158 [2020-10-27 14:49:29,656 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=564, Invalid=1788, Unknown=0, NotChecked=0, Total=2352 [2020-10-27 14:49:29,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-27 14:49:29,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 138. [2020-10-27 14:49:29,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-27 14:49:29,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 140 transitions. [2020-10-27 14:49:29,670 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 140 transitions. Word has length 130 [2020-10-27 14:49:29,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:49:29,671 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 140 transitions. [2020-10-27 14:49:29,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-27 14:49:29,671 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 140 transitions. [2020-10-27 14:49:29,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-27 14:49:29,672 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:49:29,673 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 9, 9, 9, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:49:29,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 14:49:29,673 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:49:29,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:49:29,673 INFO L82 PathProgramCache]: Analyzing trace with hash -224224457, now seen corresponding path program 13 times [2020-10-27 14:49:29,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:49:29,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1633157763] [2020-10-27 14:49:29,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:49:29,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:29,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:29,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:33,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:34,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:34,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-27 14:49:34,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:49:34,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 14:49:34,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:34,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 14:49:34,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-27 14:49:34,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-27 14:49:34,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:35,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:49:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:35,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:35,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:35,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:49:35,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:35,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:49:35,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:35,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:35,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:35,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:35,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:35,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:49:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:35,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:35,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:35,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:35,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 14:49:35,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:49:35,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-27 14:49:35,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:35,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 14:49:35,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:49:35,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 14:49:35,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:36,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 14:49:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:36,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:36,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:36,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:36,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:36,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:49:36,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:36,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:49:36,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:36,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:49:36,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:36,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 14:49:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:36,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:36,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:36,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:36,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:36,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:49:36,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:36,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:49:36,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:36,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:49:36,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:36,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-27 14:49:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:36,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:36,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:36,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:36,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:36,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:49:36,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:49:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:49:36,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:36,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 14:49:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:36,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:36,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:36,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:36,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:36,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:36,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:49:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:36,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:49:36,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:36,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-27 14:49:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:36,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:36,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:36,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:36,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:36,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:36,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:36,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:49:36,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:36,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:49:36,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:36,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 14:49:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:36,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:36,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:36,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:36,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:36,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:49:36,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:36,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 14:49:36,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:36,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 14:49:36,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:36,838 INFO L134 CoverageAnalysis]: Checked inductivity of 538 backedges. 12 proven. 459 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-27 14:49:36,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1633157763] [2020-10-27 14:49:36,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:49:36,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-10-27 14:49:36,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745035638] [2020-10-27 14:49:36,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-10-27 14:49:36,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:49:36,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-10-27 14:49:36,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1425, Unknown=0, NotChecked=0, Total=1640 [2020-10-27 14:49:36,840 INFO L87 Difference]: Start difference. First operand 138 states and 140 transitions. Second operand 41 states. [2020-10-27 14:49:40,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:49:40,061 INFO L93 Difference]: Finished difference Result 249 states and 254 transitions. [2020-10-27 14:49:40,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-27 14:49:40,061 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 135 [2020-10-27 14:49:40,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:49:40,063 INFO L225 Difference]: With dead ends: 249 [2020-10-27 14:49:40,063 INFO L226 Difference]: Without dead ends: 152 [2020-10-27 14:49:40,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=703, Invalid=4553, Unknown=0, NotChecked=0, Total=5256 [2020-10-27 14:49:40,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-27 14:49:40,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 149. [2020-10-27 14:49:40,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-27 14:49:40,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 151 transitions. [2020-10-27 14:49:40,080 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 151 transitions. Word has length 135 [2020-10-27 14:49:40,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:49:40,080 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 151 transitions. [2020-10-27 14:49:40,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-10-27 14:49:40,080 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 151 transitions. [2020-10-27 14:49:40,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-27 14:49:40,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:49:40,082 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:49:40,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 14:49:40,082 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:49:40,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:49:40,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1492312028, now seen corresponding path program 14 times [2020-10-27 14:49:40,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:49:40,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [181408309] [2020-10-27 14:49:40,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:49:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:40,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:40,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:44,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:45,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:45,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-27 14:49:45,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 14:49:45,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 14:49:45,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:45,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 14:49:45,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-27 14:49:45,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 14:49:45,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:45,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:49:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:45,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:45,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:45,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:49:45,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:45,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:49:45,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:45,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:45,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:45,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:45,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:45,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:49:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:45,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:45,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:45,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:45,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-27 14:49:45,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:49:45,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-27 14:49:45,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 14:49:45,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:49:45,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 14:49:45,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:45,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 14:49:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:45,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:45,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:45,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:45,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:45,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:45,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:45,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:45,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:45,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:45,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:45,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 14:49:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:45,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:45,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:45,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:45,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:45,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:49:45,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:45,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:45,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:45,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:45,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:45,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-27 14:49:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:45,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:45,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:45,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:45,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:45,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:45,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:45,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:45,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:45,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:45,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:45,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-27 14:49:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:45,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:45,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:45,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:45,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:45,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:45,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:45,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:45,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-27 14:49:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:45,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:45,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:45,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:45,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:45,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:45,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:45,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:45,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:45,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:45,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 14:49:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:45,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:45,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:45,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:45,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:45,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:45,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:45,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:45,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:45,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:45,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:45,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-27 14:49:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:45,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:45,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:45,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:45,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:45,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:49:45,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:45,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:45,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:45,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:45,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:45,985 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 14 proven. 406 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-10-27 14:49:45,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [181408309] [2020-10-27 14:49:45,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:49:45,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-27 14:49:45,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512853981] [2020-10-27 14:49:45,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-27 14:49:45,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:49:45,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-27 14:49:45,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=795, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 14:49:45,988 INFO L87 Difference]: Start difference. First operand 149 states and 151 transitions. Second operand 33 states. [2020-10-27 14:49:47,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:49:47,580 INFO L93 Difference]: Finished difference Result 280 states and 288 transitions. [2020-10-27 14:49:47,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-27 14:49:47,581 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 146 [2020-10-27 14:49:47,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:49:47,583 INFO L225 Difference]: With dead ends: 280 [2020-10-27 14:49:47,583 INFO L226 Difference]: Without dead ends: 174 [2020-10-27 14:49:47,584 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=690, Invalid=2172, Unknown=0, NotChecked=0, Total=2862 [2020-10-27 14:49:47,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-27 14:49:47,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 154. [2020-10-27 14:49:47,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-27 14:49:47,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 156 transitions. [2020-10-27 14:49:47,603 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 156 transitions. Word has length 146 [2020-10-27 14:49:47,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:49:47,604 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 156 transitions. [2020-10-27 14:49:47,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-27 14:49:47,604 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 156 transitions. [2020-10-27 14:49:47,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-27 14:49:47,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:49:47,607 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 10, 10, 10, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:49:47,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-27 14:49:47,608 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:49:47,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:49:47,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1039550680, now seen corresponding path program 15 times [2020-10-27 14:49:47,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:49:47,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [12090784] [2020-10-27 14:49:47,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:49:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:47,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:47,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:52,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:52,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 14:49:52,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:49:52,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 14:49:52,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 14:49:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-27 14:49:52,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 14:49:52,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:52,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:49:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:52,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:52,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:52,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:49:52,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:52,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:49:52,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:52,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:52,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:49:52,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:52,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:52,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:49:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:52,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:52,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:53,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:53,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-27 14:49:53,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:49:53,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-27 14:49:53,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:53,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 14:49:53,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:49:53,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-27 14:49:53,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:53,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-27 14:49:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:53,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:53,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:53,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:53,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:53,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:49:53,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:53,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:53,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:53,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:53,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:53,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 14:49:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:53,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:53,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:53,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:53,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:53,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:49:53,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:53,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:53,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:53,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:53,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:53,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-27 14:49:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:53,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:53,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:53,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:53,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:53,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:53,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:53,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:53,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:53,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:53,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:53,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-27 14:49:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:53,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:53,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:53,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:53,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:53,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:49:53,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:53,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:53,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:53,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:53,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:53,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-27 14:49:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:53,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:53,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:53,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:53,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:53,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:53,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:53,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:53,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:53,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:53,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:53,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 14:49:53,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:53,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:53,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:53,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:53,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:53,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:49:53,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:53,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:53,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:53,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:53,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:53,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 14:49:53,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:53,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:53,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:49:53,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:49:53,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:49:53,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:49:53,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:49:53,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:49:53,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:49:53,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:49:53,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:49:53,614 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 14 proven. 469 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-10-27 14:49:53,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [12090784] [2020-10-27 14:49:53,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:49:53,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-27 14:49:53,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364171891] [2020-10-27 14:49:53,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-27 14:49:53,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:49:53,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-27 14:49:53,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=293, Invalid=897, Unknown=0, NotChecked=0, Total=1190 [2020-10-27 14:49:53,616 INFO L87 Difference]: Start difference. First operand 154 states and 156 transitions. Second operand 35 states. [2020-10-27 14:49:55,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:49:55,413 INFO L93 Difference]: Finished difference Result 293 states and 302 transitions. [2020-10-27 14:49:55,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-27 14:49:55,419 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 151 [2020-10-27 14:49:55,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:49:55,420 INFO L225 Difference]: With dead ends: 293 [2020-10-27 14:49:55,420 INFO L226 Difference]: Without dead ends: 184 [2020-10-27 14:49:55,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=764, Invalid=2428, Unknown=0, NotChecked=0, Total=3192 [2020-10-27 14:49:55,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-27 14:49:55,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 159. [2020-10-27 14:49:55,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-10-27 14:49:55,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 161 transitions. [2020-10-27 14:49:55,436 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 161 transitions. Word has length 151 [2020-10-27 14:49:55,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:49:55,437 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 161 transitions. [2020-10-27 14:49:55,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-27 14:49:55,437 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 161 transitions. [2020-10-27 14:49:55,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-10-27 14:49:55,438 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:49:55,439 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 11, 11, 11, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:49:55,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-27 14:49:55,439 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:49:55,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:49:55,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1095500576, now seen corresponding path program 16 times [2020-10-27 14:49:55,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:49:55,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037396439] [2020-10-27 14:49:55,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:49:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:49:55,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:49:55,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:00,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:00,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-27 14:50:00,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:50:00,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 14:50:00,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 14:50:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-27 14:50:00,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 14:50:00,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:00,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:50:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:00,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:00,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:00,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:50:00,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:00,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:50:00,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:00,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:00,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:50:00,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:00,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:00,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:50:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:00,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:00,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:00,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:00,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-27 14:50:00,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:50:00,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-10-27 14:50:00,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:00,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 14:50:00,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:50:00,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 14:50:00,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:02,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 14:50:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:02,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:02,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:02,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:02,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:02,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:02,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:02,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:02,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:02,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:02,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-27 14:50:02,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:02,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:02,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:02,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:02,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:02,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:02,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:02,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:02,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:02,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:02,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:02,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-27 14:50:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:02,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:02,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:02,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:02,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:02,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:02,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:02,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:02,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:02,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-27 14:50:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:02,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:02,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:02,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:02,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:02,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:02,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:02,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:02,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:02,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:02,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:02,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-27 14:50:02,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:02,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:02,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:02,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:02,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:02,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:02,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:02,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:02,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:02,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:02,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:02,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 14:50:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:02,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:02,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:02,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:02,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:02,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:02,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:02,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:02,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:02,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:02,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:02,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-27 14:50:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:02,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:02,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:02,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:02,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:02,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:02,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:02,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:02,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:02,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:02,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:02,258 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 14 proven. 537 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-10-27 14:50:02,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037396439] [2020-10-27 14:50:02,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:50:02,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-27 14:50:02,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747045805] [2020-10-27 14:50:02,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-27 14:50:02,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:50:02,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-27 14:50:02,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=1005, Unknown=0, NotChecked=0, Total=1332 [2020-10-27 14:50:02,261 INFO L87 Difference]: Start difference. First operand 159 states and 161 transitions. Second operand 37 states. [2020-10-27 14:50:04,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:50:04,483 INFO L93 Difference]: Finished difference Result 306 states and 316 transitions. [2020-10-27 14:50:04,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-27 14:50:04,484 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 156 [2020-10-27 14:50:04,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:50:04,486 INFO L225 Difference]: With dead ends: 306 [2020-10-27 14:50:04,487 INFO L226 Difference]: Without dead ends: 194 [2020-10-27 14:50:04,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=880, Invalid=2660, Unknown=0, NotChecked=0, Total=3540 [2020-10-27 14:50:04,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-27 14:50:04,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 164. [2020-10-27 14:50:04,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-27 14:50:04,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 166 transitions. [2020-10-27 14:50:04,504 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 166 transitions. Word has length 156 [2020-10-27 14:50:04,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:50:04,504 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 166 transitions. [2020-10-27 14:50:04,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-27 14:50:04,505 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 166 transitions. [2020-10-27 14:50:04,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-27 14:50:04,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:50:04,506 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:50:04,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-27 14:50:04,506 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:50:04,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:50:04,507 INFO L82 PathProgramCache]: Analyzing trace with hash 730746836, now seen corresponding path program 17 times [2020-10-27 14:50:04,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:50:04,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1415888090] [2020-10-27 14:50:04,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:50:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:04,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:04,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:09,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:09,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-27 14:50:09,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:50:09,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 14:50:09,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:09,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 14:50:09,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-27 14:50:09,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 14:50:09,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:09,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:50:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:09,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:09,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:09,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:50:09,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:09,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:50:09,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:09,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:09,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:50:09,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:09,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:09,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:50:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:09,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:09,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:10,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:10,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 14:50:10,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:50:10,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-10-27 14:50:10,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:10,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 14:50:10,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:50:10,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-27 14:50:10,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:11,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 14:50:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:11,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:11,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:11,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:11,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:11,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:11,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:11,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:11,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:11,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:11,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:11,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-27 14:50:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:11,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:11,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:11,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:11,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:11,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:11,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:11,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:11,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:11,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:11,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:11,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-27 14:50:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:11,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:11,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:11,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:11,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:11,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:11,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:11,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:11,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2020-10-27 14:50:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:11,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:11,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:11,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:11,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:11,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:11,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:11,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:11,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:11,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:11,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:11,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-10-27 14:50:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:11,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:11,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:11,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:11,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:11,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:11,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:11,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:11,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:11,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:11,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:11,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-27 14:50:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:11,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:11,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:11,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:11,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:11,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:11,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:11,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:11,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:11,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-27 14:50:11,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:11,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:11,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:11,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:11,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:11,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:11,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:11,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:11,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:11,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:11,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:11,656 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 14 proven. 610 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-10-27 14:50:11,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1415888090] [2020-10-27 14:50:11,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:50:11,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-27 14:50:11,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482285086] [2020-10-27 14:50:11,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-27 14:50:11,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:50:11,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-27 14:50:11,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=1119, Unknown=0, NotChecked=0, Total=1482 [2020-10-27 14:50:11,659 INFO L87 Difference]: Start difference. First operand 164 states and 166 transitions. Second operand 39 states. [2020-10-27 14:50:14,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:50:14,260 INFO L93 Difference]: Finished difference Result 319 states and 330 transitions. [2020-10-27 14:50:14,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-27 14:50:14,261 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 161 [2020-10-27 14:50:14,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:50:14,263 INFO L225 Difference]: With dead ends: 319 [2020-10-27 14:50:14,263 INFO L226 Difference]: Without dead ends: 204 [2020-10-27 14:50:14,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=964, Invalid=2942, Unknown=0, NotChecked=0, Total=3906 [2020-10-27 14:50:14,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-10-27 14:50:14,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 169. [2020-10-27 14:50:14,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-27 14:50:14,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 171 transitions. [2020-10-27 14:50:14,281 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 171 transitions. Word has length 161 [2020-10-27 14:50:14,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:50:14,281 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 171 transitions. [2020-10-27 14:50:14,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-27 14:50:14,282 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 171 transitions. [2020-10-27 14:50:14,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-27 14:50:14,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:50:14,283 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 13, 13, 13, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:50:14,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-27 14:50:14,283 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:50:14,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:50:14,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1667490276, now seen corresponding path program 18 times [2020-10-27 14:50:14,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:50:14,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882268074] [2020-10-27 14:50:14,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:50:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:14,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:14,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:19,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:19,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-27 14:50:19,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:50:19,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-27 14:50:19,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:19,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 14:50:19,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-27 14:50:19,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-27 14:50:19,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:19,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:50:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:19,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:19,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:19,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:50:19,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:19,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:50:19,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:19,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:19,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:50:19,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:19,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:19,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:50:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:19,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:19,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:19,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:19,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 14:50:19,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:50:19,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-10-27 14:50:19,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:19,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-27 14:50:19,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:50:19,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-27 14:50:19,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:20,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-27 14:50:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:20,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:20,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:20,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:20,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:20,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:20,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:20,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:20,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:20,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:20,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:20,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 14:50:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:20,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:20,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:20,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:20,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:20,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:20,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:20,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:20,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:20,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:20,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:20,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-10-27 14:50:20,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:20,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:20,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:20,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:20,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:20,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:20,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:20,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:20,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:20,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:20,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:20,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 14:50:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:20,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:20,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:20,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:20,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:20,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:20,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:20,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:20,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:20,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:20,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:20,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-27 14:50:20,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:20,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:20,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:20,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:20,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:20,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:20,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:20,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:20,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:20,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:20,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:20,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-27 14:50:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:20,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:20,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:20,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:20,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:20,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:20,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:20,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:20,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:20,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:20,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:20,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-10-27 14:50:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:20,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:20,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:20,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:20,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:20,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:20,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:20,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:20,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:20,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:20,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:20,685 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 14 proven. 688 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-10-27 14:50:20,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882268074] [2020-10-27 14:50:20,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:50:20,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-10-27 14:50:20,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109891541] [2020-10-27 14:50:20,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-10-27 14:50:20,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:50:20,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-10-27 14:50:20,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=401, Invalid=1239, Unknown=0, NotChecked=0, Total=1640 [2020-10-27 14:50:20,688 INFO L87 Difference]: Start difference. First operand 169 states and 171 transitions. Second operand 41 states. [2020-10-27 14:50:22,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:50:22,895 INFO L93 Difference]: Finished difference Result 332 states and 344 transitions. [2020-10-27 14:50:22,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-27 14:50:22,896 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 166 [2020-10-27 14:50:22,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:50:22,898 INFO L225 Difference]: With dead ends: 332 [2020-10-27 14:50:22,898 INFO L226 Difference]: Without dead ends: 214 [2020-10-27 14:50:22,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1010, Invalid=3280, Unknown=0, NotChecked=0, Total=4290 [2020-10-27 14:50:22,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-27 14:50:22,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 174. [2020-10-27 14:50:22,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-27 14:50:22,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 176 transitions. [2020-10-27 14:50:22,919 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 176 transitions. Word has length 166 [2020-10-27 14:50:22,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:50:22,919 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 176 transitions. [2020-10-27 14:50:22,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-10-27 14:50:22,919 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 176 transitions. [2020-10-27 14:50:22,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-27 14:50:22,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:50:22,921 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 14, 14, 14, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:50:22,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-27 14:50:22,921 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:50:22,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:50:22,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1448439504, now seen corresponding path program 19 times [2020-10-27 14:50:22,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:50:22,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366766052] [2020-10-27 14:50:22,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:50:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:22,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:23,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:27,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:27,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-27 14:50:27,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:50:27,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-27 14:50:27,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:27,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 14:50:27,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-27 14:50:27,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 14:50:27,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:28,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:50:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:28,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:28,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:28,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:50:28,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:28,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:50:28,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:50:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:28,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:28,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:50:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:28,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:28,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:28,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:28,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-27 14:50:28,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:50:28,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-10-27 14:50:28,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:28,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 14:50:28,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:50:28,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-27 14:50:28,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:29,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-27 14:50:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:29,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:29,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:29,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:29,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:29,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:29,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:29,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:29,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:29,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:29,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:29,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-27 14:50:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:29,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:29,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:29,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:29,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:29,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:29,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:29,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:29,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:29,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-27 14:50:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:29,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:29,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:29,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:29,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:29,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:29,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:29,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:29,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:29,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:29,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:29,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-27 14:50:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:29,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:29,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:29,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:29,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:29,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:29,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:29,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:29,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:29,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:29,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:29,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-27 14:50:29,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:29,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:29,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:29,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:29,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:29,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:29,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:29,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:29,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:29,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:29,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:29,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-27 14:50:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:29,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:29,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:29,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:29,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:29,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:29,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:29,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:29,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:29,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:29,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:29,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-27 14:50:29,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:29,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:29,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:29,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:29,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:29,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:29,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:29,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:29,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:29,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:29,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:29,433 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 14 proven. 771 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-10-27 14:50:29,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [366766052] [2020-10-27 14:50:29,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:50:29,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2020-10-27 14:50:29,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248451822] [2020-10-27 14:50:29,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-10-27 14:50:29,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:50:29,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-10-27 14:50:29,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=441, Invalid=1365, Unknown=0, NotChecked=0, Total=1806 [2020-10-27 14:50:29,435 INFO L87 Difference]: Start difference. First operand 174 states and 176 transitions. Second operand 43 states. [2020-10-27 14:50:31,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:50:31,950 INFO L93 Difference]: Finished difference Result 345 states and 358 transitions. [2020-10-27 14:50:31,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-10-27 14:50:31,951 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 171 [2020-10-27 14:50:31,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:50:31,952 INFO L225 Difference]: With dead ends: 345 [2020-10-27 14:50:31,952 INFO L226 Difference]: Without dead ends: 224 [2020-10-27 14:50:31,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 709 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1100, Invalid=3592, Unknown=0, NotChecked=0, Total=4692 [2020-10-27 14:50:31,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-27 14:50:31,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 179. [2020-10-27 14:50:31,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-10-27 14:50:31,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 181 transitions. [2020-10-27 14:50:31,970 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 181 transitions. Word has length 171 [2020-10-27 14:50:31,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:50:31,971 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 181 transitions. [2020-10-27 14:50:31,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-10-27 14:50:31,971 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 181 transitions. [2020-10-27 14:50:31,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-27 14:50:31,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:50:31,972 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 15, 15, 15, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:50:31,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-27 14:50:31,973 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:50:31,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:50:31,973 INFO L82 PathProgramCache]: Analyzing trace with hash -934883608, now seen corresponding path program 20 times [2020-10-27 14:50:31,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:50:31,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204717531] [2020-10-27 14:50:31,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:50:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:32,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:32,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:37,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:37,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-27 14:50:37,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:50:37,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-27 14:50:37,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:37,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 14:50:37,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-27 14:50:37,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 14:50:37,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:37,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:50:37,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:37,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:37,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:37,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:50:37,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:37,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 14:50:37,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:37,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:37,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:50:37,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:37,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:37,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:50:37,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:37,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:37,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:37,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:37,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-27 14:50:37,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:50:37,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-10-27 14:50:37,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:37,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 14:50:37,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:50:37,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 14:50:37,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:39,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-27 14:50:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:39,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:39,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:39,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:39,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:39,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:39,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:39,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:39,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:39,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:39,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:39,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-27 14:50:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:39,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:39,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:39,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:39,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:39,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:50:39,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:39,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:39,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:39,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:39,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:39,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-27 14:50:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:39,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:39,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:39,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:39,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:39,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:39,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:39,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:39,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:39,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:39,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:39,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-27 14:50:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:39,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:39,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:39,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:39,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:39,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:39,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:39,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:39,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:39,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-27 14:50:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:39,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:39,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:39,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:39,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:39,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:39,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:39,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:39,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:39,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:39,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:39,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-27 14:50:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:39,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:39,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:39,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:39,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:39,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:39,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:39,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:39,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:39,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:39,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:39,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-27 14:50:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:39,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:39,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:39,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:39,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:39,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:39,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:39,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:39,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:39,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:39,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:39,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 14 proven. 859 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-10-27 14:50:39,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204717531] [2020-10-27 14:50:39,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:50:39,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2020-10-27 14:50:39,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010390287] [2020-10-27 14:50:39,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 45 states [2020-10-27 14:50:39,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:50:39,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2020-10-27 14:50:39,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1497, Unknown=0, NotChecked=0, Total=1980 [2020-10-27 14:50:39,627 INFO L87 Difference]: Start difference. First operand 179 states and 181 transitions. Second operand 45 states. [2020-10-27 14:50:42,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:50:42,890 INFO L93 Difference]: Finished difference Result 358 states and 372 transitions. [2020-10-27 14:50:42,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-27 14:50:42,891 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 176 [2020-10-27 14:50:42,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:50:42,893 INFO L225 Difference]: With dead ends: 358 [2020-10-27 14:50:42,894 INFO L226 Difference]: Without dead ends: 234 [2020-10-27 14:50:42,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 777 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1240, Invalid=3872, Unknown=0, NotChecked=0, Total=5112 [2020-10-27 14:50:42,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-10-27 14:50:42,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 184. [2020-10-27 14:50:42,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-10-27 14:50:42,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 186 transitions. [2020-10-27 14:50:42,922 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 186 transitions. Word has length 176 [2020-10-27 14:50:42,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:50:42,922 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 186 transitions. [2020-10-27 14:50:42,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 45 states. [2020-10-27 14:50:42,923 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 186 transitions. [2020-10-27 14:50:42,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-27 14:50:42,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:50:42,924 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 16, 16, 16, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:50:42,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-27 14:50:42,924 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:50:42,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:50:42,925 INFO L82 PathProgramCache]: Analyzing trace with hash -108567092, now seen corresponding path program 21 times [2020-10-27 14:50:42,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:50:42,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45346556] [2020-10-27 14:50:42,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:50:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:42,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:43,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:47,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:47,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-27 14:50:47,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:50:47,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-27 14:50:47,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 14:50:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-27 14:50:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-27 14:50:47,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:48,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:50:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:48,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:48,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:48,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:50:48,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:48,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 14:50:48,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:48,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:48,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:50:48,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:48,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:48,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:50:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:48,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:48,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:48,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:48,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 14:50:48,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:50:48,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 519 [2020-10-27 14:50:48,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:48,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 14:50:48,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:50:48,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 14:50:48,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:49,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-27 14:50:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:49,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:49,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:49,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:49,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:49,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:49,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:49,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:49,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:49,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:49,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:49,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-27 14:50:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:49,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:49,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:49,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:49,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:49,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:49,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:49,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:49,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:49,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:49,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:49,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-27 14:50:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:49,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:49,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:49,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:49,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:49,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 14:50:49,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:49,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:49,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:49,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:49,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:49,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-27 14:50:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:49,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:49,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:49,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:49,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:49,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:49,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:49,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:49,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:49,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:49,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:49,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-27 14:50:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:49,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:49,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:49,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:49,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:49,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:49,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:49,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:49,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:49,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:49,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:49,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-27 14:50:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:49,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:49,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:49,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:49,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:49,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:49,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:49,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:49,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:49,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:49,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:49,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-27 14:50:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:49,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:49,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:49,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:50:49,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:49,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:50:49,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:49,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:49,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:50:49,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:49,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:49,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 14 proven. 952 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-10-27 14:50:49,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [45346556] [2020-10-27 14:50:49,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:50:49,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47] total 47 [2020-10-27 14:50:49,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218457366] [2020-10-27 14:50:49,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 47 states [2020-10-27 14:50:49,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:50:49,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2020-10-27 14:50:49,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=527, Invalid=1635, Unknown=0, NotChecked=0, Total=2162 [2020-10-27 14:50:49,840 INFO L87 Difference]: Start difference. First operand 184 states and 186 transitions. Second operand 47 states. [2020-10-27 14:50:52,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:50:52,651 INFO L93 Difference]: Finished difference Result 371 states and 386 transitions. [2020-10-27 14:50:52,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-10-27 14:50:52,652 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 181 [2020-10-27 14:50:52,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:50:52,655 INFO L225 Difference]: With dead ends: 371 [2020-10-27 14:50:52,656 INFO L226 Difference]: Without dead ends: 244 [2020-10-27 14:50:52,658 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 848 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1292, Invalid=4258, Unknown=0, NotChecked=0, Total=5550 [2020-10-27 14:50:52,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-10-27 14:50:52,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 189. [2020-10-27 14:50:52,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-27 14:50:52,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 191 transitions. [2020-10-27 14:50:52,674 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 191 transitions. Word has length 181 [2020-10-27 14:50:52,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:50:52,675 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 191 transitions. [2020-10-27 14:50:52,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 47 states. [2020-10-27 14:50:52,675 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 191 transitions. [2020-10-27 14:50:52,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-27 14:50:52,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:50:52,676 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 17, 17, 17, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:50:52,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-27 14:50:52,677 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:50:52,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:50:52,677 INFO L82 PathProgramCache]: Analyzing trace with hash 379651052, now seen corresponding path program 22 times [2020-10-27 14:50:52,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:50:52,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1574797658] [2020-10-27 14:50:52,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:50:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:52,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:52,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:57,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:57,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-10-27 14:50:57,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:50:57,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-27 14:50:57,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:57,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 14:50:57,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-27 14:50:57,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 14:50:57,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:58,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:50:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:58,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:58,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:58,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:50:58,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:50:58,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:50:58,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:58,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:50:58,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:50:58,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:50:58,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:50:58,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:50:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:50:58,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:58,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:50:58,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:50:58,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 14:50:58,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:50:58,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 667 [2020-10-27 14:50:58,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:50:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-27 14:50:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:50:58,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 14:50:58,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:00,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-27 14:51:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:00,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:00,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:00,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:00,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:00,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:00,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:00,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:00,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:00,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:00,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:00,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-27 14:51:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:00,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:00,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:00,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:00,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:00,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:51:00,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:00,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:00,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:00,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:00,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:00,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-27 14:51:00,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:00,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:00,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:00,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:00,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:00,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:00,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:00,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:00,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:00,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:00,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:00,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-27 14:51:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:00,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:00,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:00,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:00,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:00,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:00,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:00,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:00,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:00,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:00,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:00,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-27 14:51:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:00,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:00,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:00,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:00,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:00,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:00,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:00,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:00,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:00,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:00,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:00,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-27 14:51:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:00,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:00,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:00,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:00,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:00,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:00,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:00,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:00,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:00,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:00,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:00,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-10-27 14:51:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:00,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:00,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:00,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:00,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:00,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:00,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:00,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:00,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:00,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:00,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:00,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1274 backedges. 14 proven. 1050 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-10-27 14:51:00,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1574797658] [2020-10-27 14:51:00,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:51:00,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2020-10-27 14:51:00,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4519063] [2020-10-27 14:51:00,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 49 states [2020-10-27 14:51:00,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:51:00,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2020-10-27 14:51:00,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=573, Invalid=1779, Unknown=0, NotChecked=0, Total=2352 [2020-10-27 14:51:00,784 INFO L87 Difference]: Start difference. First operand 189 states and 191 transitions. Second operand 49 states. [2020-10-27 14:51:04,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:51:04,422 INFO L93 Difference]: Finished difference Result 384 states and 400 transitions. [2020-10-27 14:51:04,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-10-27 14:51:04,423 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 186 [2020-10-27 14:51:04,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:51:04,425 INFO L225 Difference]: With dead ends: 384 [2020-10-27 14:51:04,425 INFO L226 Difference]: Without dead ends: 254 [2020-10-27 14:51:04,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 922 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1444, Invalid=4562, Unknown=0, NotChecked=0, Total=6006 [2020-10-27 14:51:04,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-27 14:51:04,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 194. [2020-10-27 14:51:04,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-27 14:51:04,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 196 transitions. [2020-10-27 14:51:04,445 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 196 transitions. Word has length 186 [2020-10-27 14:51:04,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:51:04,445 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 196 transitions. [2020-10-27 14:51:04,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 49 states. [2020-10-27 14:51:04,445 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 196 transitions. [2020-10-27 14:51:04,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-27 14:51:04,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:51:04,447 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 18, 18, 18, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:51:04,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-27 14:51:04,447 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:51:04,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:51:04,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1717564616, now seen corresponding path program 23 times [2020-10-27 14:51:04,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:51:04,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660024416] [2020-10-27 14:51:04,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:51:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:04,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:04,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:09,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:09,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-27 14:51:09,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:51:09,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-27 14:51:09,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:09,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 14:51:09,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-27 14:51:09,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 14:51:09,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:09,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:51:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:09,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:09,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:09,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:51:09,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:09,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:51:09,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:09,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:09,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:51:09,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:09,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:09,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:51:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:09,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:09,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:10,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:10,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-27 14:51:10,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:51:10,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-10-27 14:51:10,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 14:51:10,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:51:10,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-27 14:51:10,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:11,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-27 14:51:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:11,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:11,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:11,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:11,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:11,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:51:11,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:11,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:11,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:11,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:11,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:11,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-10-27 14:51:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:11,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:11,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:11,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:11,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:11,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:11,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:11,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:11,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:11,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:11,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-27 14:51:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:11,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:11,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:11,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:11,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:11,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:11,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:11,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:11,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:11,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:11,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:11,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-27 14:51:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:11,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:11,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:11,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:11,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:11,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:11,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:11,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:11,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:11,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:11,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:11,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-10-27 14:51:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:11,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:11,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:11,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:11,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:11,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:11,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:11,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:11,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:11,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-10-27 14:51:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:11,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:11,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:11,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:11,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:11,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:11,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:11,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:11,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:11,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:11,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:11,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-27 14:51:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:11,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:11,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:11,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:11,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:11,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:11,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:11,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:11,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:11,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:11,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:11,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1377 backedges. 14 proven. 1153 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-10-27 14:51:11,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660024416] [2020-10-27 14:51:11,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:51:11,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2020-10-27 14:51:11,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236219091] [2020-10-27 14:51:11,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 51 states [2020-10-27 14:51:11,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:51:11,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2020-10-27 14:51:11,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=621, Invalid=1929, Unknown=0, NotChecked=0, Total=2550 [2020-10-27 14:51:11,526 INFO L87 Difference]: Start difference. First operand 194 states and 196 transitions. Second operand 51 states. [2020-10-27 14:51:14,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:51:14,784 INFO L93 Difference]: Finished difference Result 397 states and 414 transitions. [2020-10-27 14:51:14,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-10-27 14:51:14,785 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 191 [2020-10-27 14:51:14,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:51:14,787 INFO L225 Difference]: With dead ends: 397 [2020-10-27 14:51:14,787 INFO L226 Difference]: Without dead ends: 264 [2020-10-27 14:51:14,789 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 999 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1500, Invalid=4980, Unknown=0, NotChecked=0, Total=6480 [2020-10-27 14:51:14,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-10-27 14:51:14,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 199. [2020-10-27 14:51:14,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-10-27 14:51:14,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 201 transitions. [2020-10-27 14:51:14,810 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 201 transitions. Word has length 191 [2020-10-27 14:51:14,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:51:14,810 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 201 transitions. [2020-10-27 14:51:14,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 51 states. [2020-10-27 14:51:14,811 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 201 transitions. [2020-10-27 14:51:14,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-27 14:51:14,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:51:14,812 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 19, 19, 19, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:51:14,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-27 14:51:14,812 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:51:14,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:51:14,813 INFO L82 PathProgramCache]: Analyzing trace with hash -1548304144, now seen corresponding path program 24 times [2020-10-27 14:51:14,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:51:14,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [746734936] [2020-10-27 14:51:14,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:51:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:14,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:14,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:19,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:19,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-27 14:51:19,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:51:19,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-27 14:51:19,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:19,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 14:51:19,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-27 14:51:19,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 14:51:19,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:20,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:51:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:20,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:20,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:20,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:51:20,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:20,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:51:20,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:20,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:20,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:51:20,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:20,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:20,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:51:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:20,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:20,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:20,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:20,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-27 14:51:20,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:51:20,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 722 [2020-10-27 14:51:20,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:20,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 14:51:20,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:51:20,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-27 14:51:20,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:23,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-27 14:51:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:23,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:23,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:23,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:23,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:23,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:23,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:23,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:23,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:23,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:23,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:23,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-27 14:51:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:23,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:23,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:23,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:23,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:23,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:23,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:23,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:23,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:23,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:23,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:23,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-27 14:51:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:23,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:23,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:23,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:23,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:23,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:23,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:23,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:23,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:23,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:23,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:23,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-27 14:51:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:23,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:23,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:23,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:23,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:23,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:23,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:23,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:23,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:23,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:23,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:23,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-10-27 14:51:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:23,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:23,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:23,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:23,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:23,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:51:23,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:23,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:23,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:23,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:23,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:23,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-10-27 14:51:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:23,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:23,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:23,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:23,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:23,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:23,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:23,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:23,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:23,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-10-27 14:51:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:23,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:23,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:23,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:23,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:23,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:23,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:23,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:23,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:23,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:23,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:23,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1485 backedges. 14 proven. 1261 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-10-27 14:51:23,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [746734936] [2020-10-27 14:51:23,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:51:23,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53] total 53 [2020-10-27 14:51:23,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99348230] [2020-10-27 14:51:23,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 53 states [2020-10-27 14:51:23,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:51:23,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2020-10-27 14:51:23,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=671, Invalid=2085, Unknown=0, NotChecked=0, Total=2756 [2020-10-27 14:51:23,339 INFO L87 Difference]: Start difference. First operand 199 states and 201 transitions. Second operand 53 states. [2020-10-27 14:51:27,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:51:27,136 INFO L93 Difference]: Finished difference Result 410 states and 428 transitions. [2020-10-27 14:51:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-10-27 14:51:27,137 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 196 [2020-10-27 14:51:27,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:51:27,139 INFO L225 Difference]: With dead ends: 410 [2020-10-27 14:51:27,139 INFO L226 Difference]: Without dead ends: 274 [2020-10-27 14:51:27,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1079 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1664, Invalid=5308, Unknown=0, NotChecked=0, Total=6972 [2020-10-27 14:51:27,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-27 14:51:27,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 204. [2020-10-27 14:51:27,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-10-27 14:51:27,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 206 transitions. [2020-10-27 14:51:27,163 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 206 transitions. Word has length 196 [2020-10-27 14:51:27,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:51:27,163 INFO L481 AbstractCegarLoop]: Abstraction has 204 states and 206 transitions. [2020-10-27 14:51:27,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 53 states. [2020-10-27 14:51:27,163 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 206 transitions. [2020-10-27 14:51:27,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-27 14:51:27,165 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:51:27,165 INFO L422 BasicCegarLoop]: trace histogram [28, 28, 20, 20, 20, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:51:27,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-27 14:51:27,165 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:51:27,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:51:27,166 INFO L82 PathProgramCache]: Analyzing trace with hash -2145723452, now seen corresponding path program 25 times [2020-10-27 14:51:27,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:51:27,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224447766] [2020-10-27 14:51:27,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:51:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:27,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:27,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:32,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:32,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-27 14:51:32,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:51:32,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-27 14:51:32,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:32,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 14:51:32,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-27 14:51:32,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 14:51:32,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:32,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:51:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:32,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:32,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:32,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:51:32,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:32,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 14:51:32,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:32,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:32,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:51:32,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:32,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:32,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:51:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:32,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:32,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:33,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:33,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 14:51:33,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:51:33,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 679 [2020-10-27 14:51:33,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:33,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 14:51:33,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:51:33,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 14:51:33,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:34,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-27 14:51:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:34,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:34,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:34,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:34,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:34,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:34,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:34,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:34,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:34,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:34,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:34,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-27 14:51:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:34,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:34,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:34,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:34,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:34,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:34,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:34,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:34,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:34,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:34,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:34,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-27 14:51:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:34,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:34,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:34,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:34,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:34,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:34,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:34,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:34,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:34,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:34,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:34,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-27 14:51:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:34,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:34,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:34,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:34,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:34,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:34,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:34,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:34,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:34,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:34,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:34,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-27 14:51:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:34,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:34,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:34,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:34,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:34,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:34,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:34,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:34,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:34,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:34,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:34,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-10-27 14:51:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:34,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:34,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:34,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:34,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:34,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:34,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:34,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:34,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:34,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:34,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:34,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-27 14:51:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:34,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:34,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:34,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 14:51:34,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:34,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 14:51:34,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:34,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:34,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 14:51:34,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:34,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:34,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1598 backedges. 14 proven. 1374 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2020-10-27 14:51:34,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224447766] [2020-10-27 14:51:34,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 14:51:34,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55] total 55 [2020-10-27 14:51:34,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435961447] [2020-10-27 14:51:34,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 55 states [2020-10-27 14:51:34,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 14:51:34,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2020-10-27 14:51:34,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=723, Invalid=2247, Unknown=0, NotChecked=0, Total=2970 [2020-10-27 14:51:34,585 INFO L87 Difference]: Start difference. First operand 204 states and 206 transitions. Second operand 55 states. [2020-10-27 14:51:38,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 14:51:38,269 INFO L93 Difference]: Finished difference Result 423 states and 442 transitions. [2020-10-27 14:51:38,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-10-27 14:51:38,270 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 201 [2020-10-27 14:51:38,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 14:51:38,272 INFO L225 Difference]: With dead ends: 423 [2020-10-27 14:51:38,272 INFO L226 Difference]: Without dead ends: 284 [2020-10-27 14:51:38,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1162 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1724, Invalid=5758, Unknown=0, NotChecked=0, Total=7482 [2020-10-27 14:51:38,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-10-27 14:51:38,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 209. [2020-10-27 14:51:38,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-27 14:51:38,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 211 transitions. [2020-10-27 14:51:38,302 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 211 transitions. Word has length 201 [2020-10-27 14:51:38,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 14:51:38,303 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 211 transitions. [2020-10-27 14:51:38,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 55 states. [2020-10-27 14:51:38,303 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 211 transitions. [2020-10-27 14:51:38,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-10-27 14:51:38,304 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 14:51:38,305 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 21, 21, 21, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 14:51:38,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-27 14:51:38,305 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 14:51:38,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 14:51:38,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1959544308, now seen corresponding path program 26 times [2020-10-27 14:51:38,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 14:51:38,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495608606] [2020-10-27 14:51:38,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 14:51:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:38,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:38,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:43,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:43,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 232 [2020-10-27 14:51:43,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:51:43,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-27 14:51:43,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:43,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 14:51:43,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-27 14:51:43,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 14:51:43,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:43,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 14:51:43,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:43,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:43,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:43,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 14:51:43,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 14:51:43,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 14:51:43,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:43,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 14:51:43,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 14:51:43,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 14:51:43,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 14:51:43,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 14:51:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 14:51:43,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:43,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 14:51:44,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 14:51:44,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-27 14:51:44,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 14:51:44,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 768 [2020-10-27 14:51:44,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 14:51:44,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-27 14:51:44,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 14:51:44,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 14:51:44,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0