/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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-cav19/array_tiling_tcpy.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 03:15:18,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 03:15:18,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 03:15:18,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 03:15:18,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 03:15:18,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 03:15:18,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 03:15:18,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 03:15:18,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 03:15:18,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 03:15:18,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 03:15:18,885 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 03:15:18,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 03:15:18,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 03:15:18,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 03:15:18,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 03:15:18,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 03:15:18,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 03:15:18,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 03:15:18,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 03:15:18,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 03:15:18,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 03:15:18,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 03:15:18,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 03:15:18,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 03:15:18,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 03:15:18,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 03:15:18,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 03:15:18,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 03:15:18,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 03:15:18,940 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 03:15:18,941 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 03:15:18,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 03:15:18,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 03:15:18,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 03:15:18,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 03:15:18,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 03:15:18,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 03:15:18,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 03:15:18,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 03:15:18,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 03:15:18,949 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 [2020-10-29 03:15:18,997 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 03:15:18,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 03:15:19,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 03:15:19,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 03:15:19,003 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 03:15:19,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 03:15:19,003 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 03:15:19,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 03:15:19,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 03:15:19,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 03:15:19,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 03:15:19,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 03:15:19,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 03:15:19,005 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 03:15:19,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 03:15:19,005 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 03:15:19,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 03:15:19,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 03:15:19,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 03:15:19,006 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 03:15:19,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 03:15:19,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 03:15:19,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 03:15:19,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 03:15:19,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 03:15:19,007 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 03:15:19,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 03:15:19,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 03:15:19,008 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 03:15:19,008 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 03:15:19,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 03:15:19,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 03:15:19,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 03:15:19,393 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 03:15:19,394 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 03:15:19,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-cav19/array_tiling_tcpy.c [2020-10-29 03:15:19,479 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2265f3822/cd1876f820fd4cb3ae3955b6ad0e619a/FLAGaea61b3ac [2020-10-29 03:15:20,142 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 03:15:20,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-cav19/array_tiling_tcpy.c [2020-10-29 03:15:20,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2265f3822/cd1876f820fd4cb3ae3955b6ad0e619a/FLAGaea61b3ac [2020-10-29 03:15:20,525 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2265f3822/cd1876f820fd4cb3ae3955b6ad0e619a [2020-10-29 03:15:20,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 03:15:20,535 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 03:15:20,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 03:15:20,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 03:15:20,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 03:15:20,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:15:20" (1/1) ... [2020-10-29 03:15:20,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43c15857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:15:20, skipping insertion in model container [2020-10-29 03:15:20,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:15:20" (1/1) ... [2020-10-29 03:15:20,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 03:15:20,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 03:15:20,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:15:20,743 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 03:15:20,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:15:20,782 INFO L208 MainTranslator]: Completed translation [2020-10-29 03:15:20,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:15:20 WrapperNode [2020-10-29 03:15:20,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 03:15:20,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 03:15:20,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 03:15:20,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 03:15:20,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:15:20" (1/1) ... [2020-10-29 03:15:20,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:15:20" (1/1) ... [2020-10-29 03:15:20,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:15:20" (1/1) ... [2020-10-29 03:15:20,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:15:20" (1/1) ... [2020-10-29 03:15:20,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:15:20" (1/1) ... [2020-10-29 03:15:20,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:15:20" (1/1) ... [2020-10-29 03:15:20,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:15:20" (1/1) ... [2020-10-29 03:15:20,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 03:15:20,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 03:15:20,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 03:15:20,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 03:15:20,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:15:20" (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 [2020-10-29 03:15:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 03:15:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 03:15:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 03:15:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 03:15:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 03:15:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 03:15:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 03:15:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 03:15:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 03:15:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 03:15:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 03:15:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 03:15:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 03:15:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 03:15:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 03:15:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 03:15:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 03:15:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 03:15:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 03:15:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 03:15:21,357 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 03:15:21,357 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-29 03:15:21,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:15:21 BoogieIcfgContainer [2020-10-29 03:15:21,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 03:15:21,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 03:15:21,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 03:15:21,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 03:15:21,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 03:15:20" (1/3) ... [2020-10-29 03:15:21,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ada86ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:15:21, skipping insertion in model container [2020-10-29 03:15:21,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:15:20" (2/3) ... [2020-10-29 03:15:21,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ada86ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:15:21, skipping insertion in model container [2020-10-29 03:15:21,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:15:21" (3/3) ... [2020-10-29 03:15:21,388 INFO L111 eAbstractionObserver]: Analyzing ICFG array_tiling_tcpy.c [2020-10-29 03:15:21,405 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 03:15:21,411 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 03:15:21,425 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 03:15:21,464 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 03:15:21,464 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 03:15:21,464 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 03:15:21,464 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 03:15:21,464 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 03:15:21,465 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 03:15:21,465 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 03:15:21,465 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 03:15:21,492 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-10-29 03:15:21,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-29 03:15:21,500 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:15:21,501 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] [2020-10-29 03:15:21,502 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:15:21,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:15:21,513 INFO L82 PathProgramCache]: Analyzing trace with hash -565863932, now seen corresponding path program 1 times [2020-10-29 03:15:21,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:15:21,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010785197] [2020-10-29 03:15:21,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:15:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:21,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:21,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:22,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:22,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 03:15:22,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:15:22,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-10-29 03:15:22,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:22,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:22,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 03:15:22,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:15:22,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 03:15:22,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 03:15:22,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:15:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:22,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:22,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:22,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:15:22,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:22,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 03:15:22,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:22,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:22,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:22,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:22,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:22,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:22,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:15:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:22,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:22,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:22,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:22,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:22,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:15:22,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:22,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:22,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:22,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:22,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:22,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:22,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:22,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:15:22,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010785197] [2020-10-29 03:15:22,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:15:22,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 03:15:22,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968498305] [2020-10-29 03:15:22,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 03:15:22,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:15:22,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 03:15:22,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-29 03:15:22,487 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 6 states. [2020-10-29 03:15:22,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:15:22,735 INFO L93 Difference]: Finished difference Result 67 states and 86 transitions. [2020-10-29 03:15:22,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 03:15:22,738 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-10-29 03:15:22,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:15:22,747 INFO L225 Difference]: With dead ends: 67 [2020-10-29 03:15:22,747 INFO L226 Difference]: Without dead ends: 32 [2020-10-29 03:15:22,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 03:15:22,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-29 03:15:22,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2020-10-29 03:15:22,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-29 03:15:22,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-29 03:15:22,799 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 20 [2020-10-29 03:15:22,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:15:22,799 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-29 03:15:22,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 03:15:22,800 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-29 03:15:22,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-29 03:15:22,801 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:15:22,801 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] [2020-10-29 03:15:22,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 03:15:22,801 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:15:22,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:15:22,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1224923804, now seen corresponding path program 1 times [2020-10-29 03:15:22,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:15:22,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570978828] [2020-10-29 03:15:22,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:15:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:22,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:22,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:23,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:23,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 03:15:23,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:15:23,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-10-29 03:15:23,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:23,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:23,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 03:15:23,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 03:15:23,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 03:15:23,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:23,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:15:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:23,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:23,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:23,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:15:23,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:23,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:23,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:23,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:23,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:23,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:23,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:23,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:23,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:15:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:23,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:23,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:23,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:23,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:23,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:15:23,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:23,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:23,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 03:15:23,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:23,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 03:15:23,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:23,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:15:23,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570978828] [2020-10-29 03:15:23,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:15:23,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 03:15:23,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181646395] [2020-10-29 03:15:23,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 03:15:23,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:15:23,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 03:15:23,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-29 03:15:23,994 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 8 states. [2020-10-29 03:15:24,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:15:24,324 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2020-10-29 03:15:24,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 03:15:24,325 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-29 03:15:24,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:15:24,326 INFO L225 Difference]: With dead ends: 49 [2020-10-29 03:15:24,327 INFO L226 Difference]: Without dead ends: 37 [2020-10-29 03:15:24,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-10-29 03:15:24,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-29 03:15:24,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2020-10-29 03:15:24,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-29 03:15:24,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-29 03:15:24,337 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 22 [2020-10-29 03:15:24,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:15:24,338 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-29 03:15:24,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 03:15:24,338 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-29 03:15:24,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-29 03:15:24,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:15:24,339 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:15:24,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 03:15:24,340 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:15:24,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:15:24,340 INFO L82 PathProgramCache]: Analyzing trace with hash 2084816262, now seen corresponding path program 2 times [2020-10-29 03:15:24,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:15:24,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1998904281] [2020-10-29 03:15:24,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:15:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:24,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:24,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:24,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 03:15:24,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:24,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-29 03:15:24,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:24,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 03:15:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:15:24,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 03:15:24,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:25,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:15:25,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:25,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:25,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:25,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:15:25,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:25,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:15:25,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:25,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:25,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:25,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:25,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:25,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:25,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:15:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:25,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:25,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:25,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:25,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:25,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:15:25,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:25,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:25,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:25,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:15:25,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1998904281] [2020-10-29 03:15:25,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:15:25,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 03:15:25,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141427998] [2020-10-29 03:15:25,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 03:15:25,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:15:25,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 03:15:25,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-10-29 03:15:25,063 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 10 states. [2020-10-29 03:15:25,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:15:25,596 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-29 03:15:25,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 03:15:25,597 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2020-10-29 03:15:25,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:15:25,598 INFO L225 Difference]: With dead ends: 40 [2020-10-29 03:15:25,598 INFO L226 Difference]: Without dead ends: 37 [2020-10-29 03:15:25,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:15:25,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-29 03:15:25,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2020-10-29 03:15:25,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-29 03:15:25,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-10-29 03:15:25,608 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 24 [2020-10-29 03:15:25,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:15:25,609 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-10-29 03:15:25,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 03:15:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-10-29 03:15:25,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-29 03:15:25,610 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:15:25,610 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] [2020-10-29 03:15:25,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 03:15:25,611 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:15:25,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:15:25,611 INFO L82 PathProgramCache]: Analyzing trace with hash -2090428688, now seen corresponding path program 1 times [2020-10-29 03:15:25,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:15:25,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430483956] [2020-10-29 03:15:25,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:15:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:25,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:25,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:25,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 03:15:25,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:25,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-29 03:15:25,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:25,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:25,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 03:15:25,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:15:25,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 03:15:25,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:26,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:15:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:26,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:26,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:26,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:15:26,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:26,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:26,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:26,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:26,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:26,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:26,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:26,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:26,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:15:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:26,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:26,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:26,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:26,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:26,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:15:26,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:26,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:26,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:26,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:26,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:26,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:26,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 03:15:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:26,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:26,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:26,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:26,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:26,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:26,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:26,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:26,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:26,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:26,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:26,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:26,140 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:15:26,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430483956] [2020-10-29 03:15:26,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:15:26,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 03:15:26,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985040301] [2020-10-29 03:15:26,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 03:15:26,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:15:26,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 03:15:26,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-29 03:15:26,143 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 11 states. [2020-10-29 03:15:26,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:15:26,709 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-29 03:15:26,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 03:15:26,710 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 32 [2020-10-29 03:15:26,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:15:26,711 INFO L225 Difference]: With dead ends: 49 [2020-10-29 03:15:26,711 INFO L226 Difference]: Without dead ends: 46 [2020-10-29 03:15:26,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2020-10-29 03:15:26,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-29 03:15:26,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2020-10-29 03:15:26,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-29 03:15:26,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-10-29 03:15:26,724 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 32 [2020-10-29 03:15:26,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:15:26,724 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-10-29 03:15:26,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 03:15:26,724 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-10-29 03:15:26,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-29 03:15:26,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:15:26,726 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:15:26,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 03:15:26,726 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:15:26,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:15:26,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1954652582, now seen corresponding path program 2 times [2020-10-29 03:15:26,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:15:26,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [922458258] [2020-10-29 03:15:26,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:15:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:26,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:27,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:27,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-10-29 03:15:27,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:27,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-29 03:15:27,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:27,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:27,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 03:15:27,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:15:27,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-29 03:15:27,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:27,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:15:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:27,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:27,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:27,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:15:27,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:27,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:27,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:27,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:27,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:27,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:27,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:27,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:27,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:15:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:27,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:27,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:27,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:27,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:27,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:15:27,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:27,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:27,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:27,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:27,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 03:15:27,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:27,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:27,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:27,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:27,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:27,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:27,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:27,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:27,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:27,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:27,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:27,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:27,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:15:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:27,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:27,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:27,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:27,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:27,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:27,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:27,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:27,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:27,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:27,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:27,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:27,592 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 03:15:27,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [922458258] [2020-10-29 03:15:27,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:15:27,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 03:15:27,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951427010] [2020-10-29 03:15:27,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 03:15:27,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:15:27,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 03:15:27,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:15:27,595 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 14 states. [2020-10-29 03:15:28,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:15:28,569 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2020-10-29 03:15:28,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 03:15:28,577 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 40 [2020-10-29 03:15:28,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:15:28,580 INFO L225 Difference]: With dead ends: 70 [2020-10-29 03:15:28,580 INFO L226 Difference]: Without dead ends: 67 [2020-10-29 03:15:28,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2020-10-29 03:15:28,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-10-29 03:15:28,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 60. [2020-10-29 03:15:28,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-29 03:15:28,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2020-10-29 03:15:28,630 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 40 [2020-10-29 03:15:28,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:15:28,630 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2020-10-29 03:15:28,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 03:15:28,630 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2020-10-29 03:15:28,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-29 03:15:28,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:15:28,635 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-29 03:15:28,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 03:15:28,635 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:15:28,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:15:28,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1728185860, now seen corresponding path program 3 times [2020-10-29 03:15:28,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:15:28,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [354391436] [2020-10-29 03:15:28,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:15:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:28,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:29,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:29,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-29 03:15:29,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:29,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 466 [2020-10-29 03:15:29,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:29,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:29,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 03:15:29,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:15:29,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 03:15:29,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:29,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:15:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:29,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:29,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:29,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:15:29,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:29,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:29,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:29,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:29,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:29,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:29,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:29,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:29,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:15:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:29,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:29,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:29,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:29,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:29,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:15:29,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:29,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:29,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:29,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:29,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:29,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:29,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 03:15:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:29,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:29,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:29,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:29,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:29,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:29,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:29,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:29,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:29,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:29,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:29,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:29,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:15:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:29,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:29,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:29,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:29,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:29,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:29,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:29,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:29,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:29,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:29,550 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 03:15:29,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [354391436] [2020-10-29 03:15:29,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:15:29,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 03:15:29,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917455859] [2020-10-29 03:15:29,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 03:15:29,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:15:29,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 03:15:29,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-29 03:15:29,553 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand 13 states. [2020-10-29 03:15:30,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:15:30,380 INFO L93 Difference]: Finished difference Result 80 states and 85 transitions. [2020-10-29 03:15:30,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 03:15:30,381 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 42 [2020-10-29 03:15:30,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:15:30,383 INFO L225 Difference]: With dead ends: 80 [2020-10-29 03:15:30,386 INFO L226 Difference]: Without dead ends: 77 [2020-10-29 03:15:30,387 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2020-10-29 03:15:30,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-29 03:15:30,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 51. [2020-10-29 03:15:30,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-29 03:15:30,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-10-29 03:15:30,416 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 42 [2020-10-29 03:15:30,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:15:30,416 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-10-29 03:15:30,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 03:15:30,416 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-10-29 03:15:30,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-29 03:15:30,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:15:30,421 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:15:30,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 03:15:30,421 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:15:30,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:15:30,423 INFO L82 PathProgramCache]: Analyzing trace with hash 590683076, now seen corresponding path program 4 times [2020-10-29 03:15:30,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:15:30,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [439371863] [2020-10-29 03:15:30,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:15:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:30,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:31,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:31,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-29 03:15:31,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:31,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 580 [2020-10-29 03:15:31,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:31,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:31,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 03:15:31,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:15:31,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-29 03:15:31,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:31,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:15:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:31,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:31,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:31,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:15:31,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:31,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:31,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:31,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:31,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:31,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:31,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:31,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:31,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:15:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:31,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:31,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:31,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:31,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:31,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:15:31,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:31,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:31,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:31,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:31,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:31,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:31,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 03:15:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:31,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:31,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:31,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:31,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:31,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:15:31,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:31,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:31,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:31,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:31,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:31,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:31,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:15:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:31,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:31,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:31,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:31,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:31,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 03:15:31,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:31,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:31,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:31,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:31,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:31,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:31,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:15:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:31,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:31,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:31,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:31,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:31,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 03:15:31,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:31,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:31,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:31,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:31,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:31,751 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 22 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 03:15:31,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [439371863] [2020-10-29 03:15:31,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:15:31,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 03:15:31,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295963355] [2020-10-29 03:15:31,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 03:15:31,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:15:31,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 03:15:31,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-10-29 03:15:31,755 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 16 states. [2020-10-29 03:15:33,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:15:33,011 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2020-10-29 03:15:33,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 03:15:33,012 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 48 [2020-10-29 03:15:33,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:15:33,013 INFO L225 Difference]: With dead ends: 82 [2020-10-29 03:15:33,013 INFO L226 Difference]: Without dead ends: 79 [2020-10-29 03:15:33,014 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=101, Invalid=711, Unknown=0, NotChecked=0, Total=812 [2020-10-29 03:15:33,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-29 03:15:33,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2020-10-29 03:15:33,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-29 03:15:33,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 77 transitions. [2020-10-29 03:15:33,048 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 77 transitions. Word has length 48 [2020-10-29 03:15:33,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:15:33,050 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 77 transitions. [2020-10-29 03:15:33,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 03:15:33,050 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 77 transitions. [2020-10-29 03:15:33,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-29 03:15:33,053 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:15:33,053 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:15:33,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 03:15:33,054 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:15:33,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:15:33,054 INFO L82 PathProgramCache]: Analyzing trace with hash -2076707482, now seen corresponding path program 5 times [2020-10-29 03:15:33,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:15:33,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915566245] [2020-10-29 03:15:33,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:15:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:33,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:33,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:33,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-29 03:15:33,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:33,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 514 [2020-10-29 03:15:33,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:33,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:33,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 03:15:33,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:15:33,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-29 03:15:33,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:34,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:15:34,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:34,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:34,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:34,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:15:34,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:34,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:15:34,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:34,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:34,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:34,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:34,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:34,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:34,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:15:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:34,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:34,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:34,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:34,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:34,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:15:34,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:34,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:34,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:34,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:34,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:34,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:34,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 03:15:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:34,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:34,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:34,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:34,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:34,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:15:34,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:34,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:34,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:34,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:34,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:34,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:34,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:15:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:34,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:34,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:34,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:34,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:34,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:34,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:34,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:34,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:34,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:34,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:34,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:34,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:15:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:34,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:34,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:34,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:34,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:34,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:34,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:34,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:34,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:34,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:34,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:34,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:34,382 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 03:15:34,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1915566245] [2020-10-29 03:15:34,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:15:34,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 03:15:34,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120427009] [2020-10-29 03:15:34,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 03:15:34,384 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:15:34,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 03:15:34,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2020-10-29 03:15:34,385 INFO L87 Difference]: Start difference. First operand 72 states and 77 transitions. Second operand 16 states. [2020-10-29 03:15:35,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:15:35,795 INFO L93 Difference]: Finished difference Result 103 states and 113 transitions. [2020-10-29 03:15:35,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 03:15:35,796 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 50 [2020-10-29 03:15:35,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:15:35,798 INFO L225 Difference]: With dead ends: 103 [2020-10-29 03:15:35,798 INFO L226 Difference]: Without dead ends: 100 [2020-10-29 03:15:35,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=123, Invalid=869, Unknown=0, NotChecked=0, Total=992 [2020-10-29 03:15:35,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-10-29 03:15:35,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 74. [2020-10-29 03:15:35,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-29 03:15:35,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 80 transitions. [2020-10-29 03:15:35,826 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 80 transitions. Word has length 50 [2020-10-29 03:15:35,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:15:35,827 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 80 transitions. [2020-10-29 03:15:35,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 03:15:35,827 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 80 transitions. [2020-10-29 03:15:35,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-29 03:15:35,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:15:35,830 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 03:15:35,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 03:15:35,831 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:15:35,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:15:35,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1343558008, now seen corresponding path program 6 times [2020-10-29 03:15:35,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:15:35,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015014471] [2020-10-29 03:15:35,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:15:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:35,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:36,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:36,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 03:15:36,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:36,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 708 [2020-10-29 03:15:36,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:36,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:36,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 03:15:36,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:15:36,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 03:15:36,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:37,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:15:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:37,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:37,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:37,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:15:37,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:37,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:15:37,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:37,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:37,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:37,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:37,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:15:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:37,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:37,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:37,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:37,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:37,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:15:37,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:37,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:37,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:37,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:37,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:37,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 03:15:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:37,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:37,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:37,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:37,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:37,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 03:15:37,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:37,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:37,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:37,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:37,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:37,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 22 [2020-10-29 03:15:37,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:15:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:37,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:37,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:37,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:37,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:37,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:37,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:37,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:37,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:37,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:37,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:37,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:37,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:15:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:37,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:37,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:37,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:37,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:37,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:15:37,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:37,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:37,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:37,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:37,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:37,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:37,373 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 03:15:37,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015014471] [2020-10-29 03:15:37,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:15:37,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 03:15:37,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154990094] [2020-10-29 03:15:37,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 03:15:37,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:15:37,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 03:15:37,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-29 03:15:37,383 INFO L87 Difference]: Start difference. First operand 74 states and 80 transitions. Second operand 15 states. [2020-10-29 03:15:38,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:15:38,602 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2020-10-29 03:15:38,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 03:15:38,608 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 52 [2020-10-29 03:15:38,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:15:38,609 INFO L225 Difference]: With dead ends: 95 [2020-10-29 03:15:38,609 INFO L226 Difference]: Without dead ends: 92 [2020-10-29 03:15:38,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=82, Invalid=620, Unknown=0, NotChecked=0, Total=702 [2020-10-29 03:15:38,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-29 03:15:38,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 59. [2020-10-29 03:15:38,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-29 03:15:38,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-10-29 03:15:38,629 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 52 [2020-10-29 03:15:38,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:15:38,629 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-10-29 03:15:38,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 03:15:38,629 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-10-29 03:15:38,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-29 03:15:38,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:15:38,630 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:15:38,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 03:15:38,631 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:15:38,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:15:38,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1892364498, now seen corresponding path program 7 times [2020-10-29 03:15:38,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:15:38,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1638179930] [2020-10-29 03:15:38,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:15:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:38,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:38,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:38,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-29 03:15:38,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:38,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-10-29 03:15:38,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:38,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:38,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 03:15:38,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:15:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-29 03:15:38,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:39,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:15:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:39,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:39,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:39,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:15:39,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:39,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:15:39,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:39,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:39,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:39,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:39,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:39,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:39,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:15:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:39,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:39,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:39,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:39,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:39,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:39,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:39,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:39,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:39,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:39,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:39,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:39,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 03:15:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:39,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:39,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:39,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:39,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:39,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:39,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:39,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:39,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:39,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:39,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:39,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:39,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:15:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:39,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:39,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:39,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:39,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:39,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:39,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:39,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:39,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:39,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:39,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:39,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:39,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:15:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:39,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:39,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:39,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:39,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:39,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:39,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:39,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:39,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:39,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:39,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:39,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:39,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:15:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:39,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:39,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:39,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:39,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:39,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:39,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:39,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:39,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:39,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:39,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:39,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:39,188 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 40 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-29 03:15:39,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1638179930] [2020-10-29 03:15:39,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:15:39,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 03:15:39,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451185945] [2020-10-29 03:15:39,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 03:15:39,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:15:39,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 03:15:39,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:15:39,191 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 12 states. [2020-10-29 03:15:39,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:15:39,552 INFO L93 Difference]: Finished difference Result 91 states and 97 transitions. [2020-10-29 03:15:39,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 03:15:39,553 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2020-10-29 03:15:39,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:15:39,554 INFO L225 Difference]: With dead ends: 91 [2020-10-29 03:15:39,554 INFO L226 Difference]: Without dead ends: 62 [2020-10-29 03:15:39,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-10-29 03:15:39,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-29 03:15:39,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2020-10-29 03:15:39,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-10-29 03:15:39,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 62 transitions. [2020-10-29 03:15:39,571 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 62 transitions. Word has length 56 [2020-10-29 03:15:39,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:15:39,571 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 62 transitions. [2020-10-29 03:15:39,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 03:15:39,571 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2020-10-29 03:15:39,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-29 03:15:39,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:15:39,575 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:15:39,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 03:15:39,576 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:15:39,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:15:39,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1549998384, now seen corresponding path program 8 times [2020-10-29 03:15:39,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:15:39,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211493819] [2020-10-29 03:15:39,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:15:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:39,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:40,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:40,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 03:15:40,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:40,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 794 [2020-10-29 03:15:40,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:40,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:40,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 03:15:40,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:15:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 03:15:40,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:41,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:15:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:41,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:41,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:41,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:15:41,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:41,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:41,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:41,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:41,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:41,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:41,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:41,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:41,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:15:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:41,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:41,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:41,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:41,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:41,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:15:41,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:41,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:41,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:41,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:41,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:41,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:41,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 03:15:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:41,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:41,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:41,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:41,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:41,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:15:41,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:41,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:41,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:41,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:41,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:15:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:41,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:41,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:41,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:41,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:41,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 03:15:41,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:41,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:41,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:41,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:41,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:41,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:41,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:15:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:41,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:41,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:41,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:41,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:41,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:15:41,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:41,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:41,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:41,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:41,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:41,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:41,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:15:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:41,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:41,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:41,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:41,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:41,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:15:41,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:41,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:41,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:41,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:41,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:41,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:41,226 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 8 proven. 41 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-29 03:15:41,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211493819] [2020-10-29 03:15:41,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:15:41,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 03:15:41,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584741057] [2020-10-29 03:15:41,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 03:15:41,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:15:41,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 03:15:41,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:15:41,228 INFO L87 Difference]: Start difference. First operand 61 states and 62 transitions. Second operand 18 states. [2020-10-29 03:15:41,963 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-29 03:15:42,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:15:42,953 INFO L93 Difference]: Finished difference Result 95 states and 102 transitions. [2020-10-29 03:15:42,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 03:15:42,955 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 58 [2020-10-29 03:15:42,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:15:42,958 INFO L225 Difference]: With dead ends: 95 [2020-10-29 03:15:42,959 INFO L226 Difference]: Without dead ends: 92 [2020-10-29 03:15:42,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=118, Invalid=938, Unknown=0, NotChecked=0, Total=1056 [2020-10-29 03:15:42,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-29 03:15:42,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 86. [2020-10-29 03:15:42,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-29 03:15:42,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2020-10-29 03:15:42,987 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 58 [2020-10-29 03:15:42,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:15:42,988 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2020-10-29 03:15:42,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 03:15:42,988 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2020-10-29 03:15:42,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-29 03:15:42,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:15:42,989 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:15:42,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 03:15:42,989 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:15:42,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:15:42,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1046322674, now seen corresponding path program 9 times [2020-10-29 03:15:42,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:15:42,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092937515] [2020-10-29 03:15:42,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:15:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:43,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:43,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:43,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 03:15:43,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:43,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 710 [2020-10-29 03:15:43,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:43,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:43,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 03:15:43,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:15:43,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 03:15:43,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:44,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:15:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:44,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:44,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:44,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:15:44,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:44,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:44,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:44,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:44,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:15:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:44,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:44,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:44,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:44,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:44,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:15:44,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:44,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:44,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:44,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:44,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:44,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:44,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 03:15:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:44,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:44,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:44,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:44,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:44,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:44,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:44,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:44,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:44,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:15:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:44,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:44,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:44,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:44,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:44,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:15:44,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:44,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:44,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:44,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:44,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:44,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:44,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:15:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:44,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:44,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:44,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:44,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:44,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:44,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:44,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:44,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:44,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:44,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:44,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:44,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:15:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:44,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:44,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:44,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:44,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:44,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:15:44,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:44,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:44,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:44,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:44,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:44,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:44,627 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 8 proven. 48 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-29 03:15:44,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092937515] [2020-10-29 03:15:44,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:15:44,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 03:15:44,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242474938] [2020-10-29 03:15:44,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 03:15:44,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:15:44,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 03:15:44,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:15:44,630 INFO L87 Difference]: Start difference. First operand 86 states and 92 transitions. Second operand 18 states. [2020-10-29 03:15:46,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:15:46,687 INFO L93 Difference]: Finished difference Result 121 states and 133 transitions. [2020-10-29 03:15:46,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 03:15:46,688 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 60 [2020-10-29 03:15:46,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:15:46,691 INFO L225 Difference]: With dead ends: 121 [2020-10-29 03:15:46,691 INFO L226 Difference]: Without dead ends: 118 [2020-10-29 03:15:46,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=129, Invalid=1061, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 03:15:46,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-29 03:15:46,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 88. [2020-10-29 03:15:46,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-10-29 03:15:46,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 95 transitions. [2020-10-29 03:15:46,715 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 95 transitions. Word has length 60 [2020-10-29 03:15:46,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:15:46,716 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 95 transitions. [2020-10-29 03:15:46,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 03:15:46,716 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 95 transitions. [2020-10-29 03:15:46,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-29 03:15:46,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:15:46,717 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 03:15:46,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 03:15:46,718 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:15:46,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:15:46,719 INFO L82 PathProgramCache]: Analyzing trace with hash 734860436, now seen corresponding path program 10 times [2020-10-29 03:15:46,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:15:46,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534504635] [2020-10-29 03:15:46,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:15:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:46,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:47,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:47,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 03:15:47,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:47,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 668 [2020-10-29 03:15:47,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:47,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:47,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 03:15:47,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:15:47,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-29 03:15:47,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:47,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:15:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:47,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:47,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:47,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:15:47,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:47,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:47,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:47,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:47,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:47,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:47,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:47,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:47,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:15:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:47,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:47,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:47,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:47,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:47,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:15:47,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:47,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:47,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:47,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:47,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:47,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:47,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 03:15:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:47,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:47,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:47,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:47,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:47,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:47,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:47,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:47,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:47,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:47,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:47,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:47,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:15:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:47,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:47,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:47,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:47,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:47,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:47,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:47,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:47,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:47,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:47,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:47,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:47,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:15:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:47,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:47,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:47,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:47,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:47,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:47,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:47,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:47,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:47,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:47,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:47,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:47,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:15:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:47,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:47,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:47,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:47,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:47,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:47,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:47,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:47,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:47,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:47,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:47,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:47,974 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 8 proven. 57 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-29 03:15:47,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534504635] [2020-10-29 03:15:47,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:15:47,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 03:15:47,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494878265] [2020-10-29 03:15:47,975 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 03:15:47,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:15:47,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 03:15:47,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2020-10-29 03:15:47,976 INFO L87 Difference]: Start difference. First operand 88 states and 95 transitions. Second operand 17 states. [2020-10-29 03:15:49,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:15:49,277 INFO L93 Difference]: Finished difference Result 109 states and 117 transitions. [2020-10-29 03:15:49,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 03:15:49,280 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 62 [2020-10-29 03:15:49,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:15:49,282 INFO L225 Difference]: With dead ends: 109 [2020-10-29 03:15:49,282 INFO L226 Difference]: Without dead ends: 106 [2020-10-29 03:15:49,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2020-10-29 03:15:49,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-29 03:15:49,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 69. [2020-10-29 03:15:49,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-29 03:15:49,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2020-10-29 03:15:49,300 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 62 [2020-10-29 03:15:49,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:15:49,300 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2020-10-29 03:15:49,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 03:15:49,300 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2020-10-29 03:15:49,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-29 03:15:49,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:15:49,301 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:15:49,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 03:15:49,301 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:15:49,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:15:49,303 INFO L82 PathProgramCache]: Analyzing trace with hash -271135174, now seen corresponding path program 11 times [2020-10-29 03:15:49,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:15:49,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [991716587] [2020-10-29 03:15:49,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:15:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:49,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:49,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:49,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 03:15:49,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:49,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 600 [2020-10-29 03:15:49,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:49,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:49,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 03:15:49,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:15:49,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 03:15:49,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:51,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:15:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:51,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:51,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:51,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:15:51,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:51,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:51,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:51,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:51,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:51,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:51,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:51,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:51,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:15:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:51,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:51,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:51,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:51,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:51,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:15:51,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:51,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:51,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:51,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:51,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:51,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:51,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 03:15:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:51,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:51,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:51,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:51,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:51,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 03:15:51,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:51,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:51,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:51,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:15:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:51,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:51,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:51,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:51,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:51,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:15:51,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:51,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:51,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:51,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:51,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:51,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:51,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:15:51,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:51,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:51,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:51,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:51,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:51,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 03:15:51,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:51,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:51,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:51,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:51,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:51,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:51,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:15:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:51,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:51,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:51,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:51,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:51,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:15:51,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:51,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:51,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:51,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:51,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:51,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:15:51,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:15:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:51,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:51,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:51,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:51,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:51,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 03:15:51,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:51,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:51,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:51,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:51,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:51,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:51,319 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 50 proven. 19 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-29 03:15:51,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [991716587] [2020-10-29 03:15:51,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:15:51,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 03:15:51,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316295900] [2020-10-29 03:15:51,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 03:15:51,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:15:51,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 03:15:51,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2020-10-29 03:15:51,322 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 19 states. [2020-10-29 03:15:52,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:15:52,655 INFO L93 Difference]: Finished difference Result 104 states and 111 transitions. [2020-10-29 03:15:52,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 03:15:52,656 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 66 [2020-10-29 03:15:52,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:15:52,657 INFO L225 Difference]: With dead ends: 104 [2020-10-29 03:15:52,657 INFO L226 Difference]: Without dead ends: 72 [2020-10-29 03:15:52,659 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=181, Invalid=941, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 03:15:52,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-29 03:15:52,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2020-10-29 03:15:52,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-29 03:15:52,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2020-10-29 03:15:52,676 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 66 [2020-10-29 03:15:52,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:15:52,677 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2020-10-29 03:15:52,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 03:15:52,677 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2020-10-29 03:15:52,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-29 03:15:52,678 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:15:52,678 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:15:52,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 03:15:52,678 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:15:52,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:15:52,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1728529244, now seen corresponding path program 12 times [2020-10-29 03:15:52,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:15:52,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798231135] [2020-10-29 03:15:52,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:15:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:52,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:53,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:53,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-29 03:15:53,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:53,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 688 [2020-10-29 03:15:53,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:53,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:53,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 03:15:53,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:15:53,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 03:15:53,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:54,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:15:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:54,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:54,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:54,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:15:54,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:54,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:54,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:54,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:54,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:54,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:54,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:54,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:54,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:15:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:54,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:54,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:54,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:54,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:54,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:15:54,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:54,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:54,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:54,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:54,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:54,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:54,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 03:15:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:54,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:54,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:54,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:54,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:54,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:54,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:54,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:54,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:54,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:54,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:54,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:54,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:15:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:54,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:54,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:54,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:54,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:54,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:54,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:54,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:54,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:54,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:54,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:54,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:15:54,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:54,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:54,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:54,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:54,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:54,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:54,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:54,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:54,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:54,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:54,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:54,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:54,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:15:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:54,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:54,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:54,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:54,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:54,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:54,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:54,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:54,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:54,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:54,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:54,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:54,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:15:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:54,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:54,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:54,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:54,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:54,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:54,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:54,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:54,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:54,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:54,398 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 10 proven. 66 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-29 03:15:54,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798231135] [2020-10-29 03:15:54,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:15:54,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-29 03:15:54,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307439199] [2020-10-29 03:15:54,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 03:15:54,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:15:54,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 03:15:54,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2020-10-29 03:15:54,400 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 20 states. [2020-10-29 03:15:56,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:15:56,220 INFO L93 Difference]: Finished difference Result 110 states and 118 transitions. [2020-10-29 03:15:56,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 03:15:56,221 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 68 [2020-10-29 03:15:56,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:15:56,222 INFO L225 Difference]: With dead ends: 110 [2020-10-29 03:15:56,222 INFO L226 Difference]: Without dead ends: 107 [2020-10-29 03:15:56,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=133, Invalid=1199, Unknown=0, NotChecked=0, Total=1332 [2020-10-29 03:15:56,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-29 03:15:56,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 100. [2020-10-29 03:15:56,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-10-29 03:15:56,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 107 transitions. [2020-10-29 03:15:56,244 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 107 transitions. Word has length 68 [2020-10-29 03:15:56,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:15:56,244 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 107 transitions. [2020-10-29 03:15:56,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 03:15:56,244 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 107 transitions. [2020-10-29 03:15:56,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-29 03:15:56,245 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:15:56,245 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:15:56,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 03:15:56,246 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:15:56,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:15:56,246 INFO L82 PathProgramCache]: Analyzing trace with hash -739313666, now seen corresponding path program 13 times [2020-10-29 03:15:56,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:15:56,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [964105195] [2020-10-29 03:15:56,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:15:56,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:56,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:56,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:56,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 03:15:56,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:56,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 670 [2020-10-29 03:15:56,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:56,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:56,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 03:15:56,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:15:56,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-29 03:15:56,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:57,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:15:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:57,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:57,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:57,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:15:57,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:57,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:57,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:57,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:57,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:57,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:57,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:57,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:57,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:15:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:57,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:57,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:57,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:57,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:57,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:15:57,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:57,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:57,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:15:57,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:57,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:15:57,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:57,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 03:15:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:57,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:57,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:57,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:57,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:57,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:15:57,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:57,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:57,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:57,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:57,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:15:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:57,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:57,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:57,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:57,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:57,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:57,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:57,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:57,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:57,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:57,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:57,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:57,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:15:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:57,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:57,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:57,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:57,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:57,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:57,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:57,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:57,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:57,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:57,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:57,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:57,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:15:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:57,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:57,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:57,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:57,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:57,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:57,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:57,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:57,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:57,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:57,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:57,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:15:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:15:57,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:15:57,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:15:57,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:15:57,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:15:57,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:15:57,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:15:57,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:15:57,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:15:57,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:15:57,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:15:57,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:15:57,755 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 10 proven. 75 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-29 03:15:57,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [964105195] [2020-10-29 03:15:57,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:15:57,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-29 03:15:57,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140708155] [2020-10-29 03:15:57,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 03:15:57,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:15:57,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 03:15:57,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2020-10-29 03:15:57,757 INFO L87 Difference]: Start difference. First operand 100 states and 107 transitions. Second operand 20 states. [2020-10-29 03:16:00,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:16:00,093 INFO L93 Difference]: Finished difference Result 139 states and 153 transitions. [2020-10-29 03:16:00,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-29 03:16:00,094 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 70 [2020-10-29 03:16:00,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:16:00,096 INFO L225 Difference]: With dead ends: 139 [2020-10-29 03:16:00,096 INFO L226 Difference]: Without dead ends: 136 [2020-10-29 03:16:00,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=158, Invalid=1482, Unknown=0, NotChecked=0, Total=1640 [2020-10-29 03:16:00,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-29 03:16:00,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 102. [2020-10-29 03:16:00,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-29 03:16:00,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 110 transitions. [2020-10-29 03:16:00,118 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 110 transitions. Word has length 70 [2020-10-29 03:16:00,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:16:00,119 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 110 transitions. [2020-10-29 03:16:00,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 03:16:00,119 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 110 transitions. [2020-10-29 03:16:00,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-29 03:16:00,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:16:00,120 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 03:16:00,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 03:16:00,121 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:16:00,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:16:00,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1514402784, now seen corresponding path program 14 times [2020-10-29 03:16:00,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:16:00,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1604289420] [2020-10-29 03:16:00,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:16:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:00,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:00,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:00,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 03:16:00,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:00,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 727 [2020-10-29 03:16:00,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:00,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:00,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 03:16:00,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:16:00,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 03:16:00,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:01,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:16:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:01,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:01,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:01,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:16:01,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:01,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:01,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:01,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:01,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:01,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:01,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:01,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:01,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:16:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:01,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:01,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:01,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:01,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:01,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:16:01,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:01,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:01,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:01,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:01,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:01,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:01,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:16:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:01,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:01,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:01,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:01,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:01,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:01,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:01,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:01,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:01,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:01,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:01,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:01,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:16:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:01,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:01,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:01,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:01,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:01,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:01,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:01,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:01,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:01,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:16:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:01,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:01,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:01,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:01,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:01,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:01,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:01,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:01,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:01,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:01,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:01,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:01,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 03:16:01,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:01,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:01,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:01,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:01,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:01,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:01,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:01,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:01,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:01,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 03:16:01,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:01,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:01,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:01,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:01,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:01,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:01,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:01,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:01,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:01,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:01,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:01,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:01,642 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 10 proven. 86 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-29 03:16:01,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1604289420] [2020-10-29 03:16:01,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:16:01,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 03:16:01,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510135157] [2020-10-29 03:16:01,643 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 03:16:01,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:16:01,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 03:16:01,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=305, Unknown=0, NotChecked=0, Total=342 [2020-10-29 03:16:01,644 INFO L87 Difference]: Start difference. First operand 102 states and 110 transitions. Second operand 19 states. [2020-10-29 03:16:03,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:16:03,406 INFO L93 Difference]: Finished difference Result 123 states and 132 transitions. [2020-10-29 03:16:03,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 03:16:03,407 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 72 [2020-10-29 03:16:03,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:16:03,409 INFO L225 Difference]: With dead ends: 123 [2020-10-29 03:16:03,409 INFO L226 Difference]: Without dead ends: 120 [2020-10-29 03:16:03,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=110, Invalid=1012, Unknown=0, NotChecked=0, Total=1122 [2020-10-29 03:16:03,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-29 03:16:03,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 79. [2020-10-29 03:16:03,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-29 03:16:03,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 80 transitions. [2020-10-29 03:16:03,425 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 80 transitions. Word has length 72 [2020-10-29 03:16:03,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:16:03,425 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 80 transitions. [2020-10-29 03:16:03,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 03:16:03,425 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 80 transitions. [2020-10-29 03:16:03,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-29 03:16:03,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:16:03,426 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:16:03,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 03:16:03,427 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:16:03,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:16:03,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1452400326, now seen corresponding path program 15 times [2020-10-29 03:16:03,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:16:03,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293478204] [2020-10-29 03:16:03,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:16:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:03,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:04,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:04,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 03:16:04,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:04,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 696 [2020-10-29 03:16:04,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:04,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 03:16:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:16:04,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 03:16:04,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:04,441 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2020-10-29 03:16:05,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:16:05,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:05,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:05,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:05,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:16:05,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:05,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:05,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:05,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:05,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:05,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:05,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:16:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:05,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:05,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:05,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:05,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:05,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:16:05,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:05,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:05,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:05,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:05,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 03:16:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:05,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:05,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:05,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:05,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:05,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:05,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:05,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:05,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:05,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:05,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:05,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:05,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:16:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:05,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:05,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:05,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:05,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:05,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:05,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:05,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:05,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:05,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:05,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:05,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:05,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:16:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:05,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:05,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:05,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:05,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:05,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:05,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:05,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:05,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:05,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:05,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:05,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:05,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:16:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:05,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:05,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:05,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:05,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:05,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:05,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:05,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:05,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:05,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:05,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:05,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:05,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:16:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:05,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:05,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:05,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:05,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:05,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:05,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:05,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:05,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:05,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:05,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 03:16:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:05,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:05,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:05,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:05,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:05,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:05,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:05,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:05,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:05,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:05,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:05,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:05,496 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 12 proven. 88 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 03:16:05,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293478204] [2020-10-29 03:16:05,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:16:05,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 03:16:05,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606289214] [2020-10-29 03:16:05,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 03:16:05,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:16:05,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 03:16:05,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2020-10-29 03:16:05,499 INFO L87 Difference]: Start difference. First operand 79 states and 80 transitions. Second operand 21 states. [2020-10-29 03:16:06,103 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-10-29 03:16:07,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:16:07,828 INFO L93 Difference]: Finished difference Result 121 states and 130 transitions. [2020-10-29 03:16:07,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 03:16:07,829 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 76 [2020-10-29 03:16:07,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:16:07,830 INFO L225 Difference]: With dead ends: 121 [2020-10-29 03:16:07,830 INFO L226 Difference]: Without dead ends: 118 [2020-10-29 03:16:07,831 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=125, Invalid=1281, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 03:16:07,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-29 03:16:07,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 112. [2020-10-29 03:16:07,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-29 03:16:07,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 120 transitions. [2020-10-29 03:16:07,856 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 120 transitions. Word has length 76 [2020-10-29 03:16:07,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:16:07,856 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 120 transitions. [2020-10-29 03:16:07,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 03:16:07,857 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 120 transitions. [2020-10-29 03:16:07,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-29 03:16:07,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:16:07,859 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:16:07,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 03:16:07,860 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:16:07,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:16:07,860 INFO L82 PathProgramCache]: Analyzing trace with hash -573320856, now seen corresponding path program 16 times [2020-10-29 03:16:07,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:16:07,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478340735] [2020-10-29 03:16:07,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:16:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:07,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:08,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:08,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-29 03:16:08,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:08,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 722 [2020-10-29 03:16:08,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:08,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:08,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 03:16:08,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:16:08,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 03:16:08,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:09,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:16:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:09,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:09,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:09,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:16:09,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:09,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:16:09,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:09,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:09,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:09,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:09,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:09,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:09,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:16:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:09,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:09,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:09,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:09,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:09,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:16:09,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:09,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:09,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:09,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:09,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 03:16:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:09,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:09,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:09,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:09,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:09,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:09,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:09,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:09,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:09,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:09,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:09,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:09,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:16:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:09,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:09,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:09,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:09,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:09,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:09,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:09,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:09,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:09,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:09,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:09,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:09,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:16:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:09,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:09,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:09,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:09,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:09,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:09,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:09,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:09,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:09,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:09,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:09,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:09,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:16:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:09,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:09,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:09,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:09,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:09,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:09,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:09,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:09,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:09,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:09,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:09,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:09,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:16:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:09,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:09,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:09,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:09,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:09,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:09,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:09,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:09,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:09,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:09,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:09,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:09,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 03:16:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:09,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:09,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:09,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:09,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:09,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:09,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:09,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:09,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:09,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:09,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:09,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:09,946 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 12 proven. 97 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 03:16:09,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478340735] [2020-10-29 03:16:09,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:16:09,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 03:16:09,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289392250] [2020-10-29 03:16:09,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 03:16:09,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:16:09,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 03:16:09,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2020-10-29 03:16:09,948 INFO L87 Difference]: Start difference. First operand 112 states and 120 transitions. Second operand 22 states. [2020-10-29 03:16:12,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:16:12,585 INFO L93 Difference]: Finished difference Result 155 states and 171 transitions. [2020-10-29 03:16:12,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-29 03:16:12,586 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 78 [2020-10-29 03:16:12,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:16:12,588 INFO L225 Difference]: With dead ends: 155 [2020-10-29 03:16:12,588 INFO L226 Difference]: Without dead ends: 152 [2020-10-29 03:16:12,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=153, Invalid=1569, Unknown=0, NotChecked=0, Total=1722 [2020-10-29 03:16:12,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-29 03:16:12,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 114. [2020-10-29 03:16:12,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-29 03:16:12,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2020-10-29 03:16:12,613 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 78 [2020-10-29 03:16:12,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:16:12,613 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2020-10-29 03:16:12,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 03:16:12,613 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2020-10-29 03:16:12,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-29 03:16:12,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:16:12,615 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:16:12,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 03:16:12,615 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:16:12,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:16:12,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1671191670, now seen corresponding path program 17 times [2020-10-29 03:16:12,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:16:12,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944788873] [2020-10-29 03:16:12,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:16:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:12,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:13,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:13,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-29 03:16:13,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:13,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 863 [2020-10-29 03:16:13,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:13,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:13,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 03:16:13,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:16:13,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 03:16:13,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:14,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:16:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:14,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:14,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:14,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:16:14,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:14,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:14,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:14,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:14,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:14,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:14,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:14,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:14,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:16:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:14,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:14,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:14,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:14,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:14,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:16:14,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:14,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:14,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:14,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:14,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:14,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:14,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:16:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:14,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:14,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:14,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:14,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:14,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:16:14,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:14,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:14,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:14,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:14,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:14,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:14,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:16:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:14,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:14,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:14,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:14,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:14,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:16:14,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:14,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:14,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:14,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:14,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:14,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:16:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:14,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:14,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:14,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:14,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:14,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:16:14,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:14,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:14,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:14,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:14,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:14,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:15,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 03:16:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:15,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:15,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:15,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:15,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:15,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:16:15,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:15,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:15,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:15,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:15,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:15,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:15,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 03:16:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:15,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:15,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:15,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:15,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:15,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:16:15,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:15,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:15,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:15,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:15,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:15,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:15,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 03:16:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:15,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:15,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:15,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:15,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:15,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:16:15,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:15,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:15,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:15,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:15,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:15,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:15,064 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 12 proven. 108 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 03:16:15,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944788873] [2020-10-29 03:16:15,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:16:15,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 03:16:15,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707172106] [2020-10-29 03:16:15,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 03:16:15,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:16:15,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 03:16:15,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=420, Unknown=0, NotChecked=0, Total=462 [2020-10-29 03:16:15,067 INFO L87 Difference]: Start difference. First operand 114 states and 123 transitions. Second operand 22 states. [2020-10-29 03:16:18,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:16:18,564 INFO L93 Difference]: Finished difference Result 157 states and 174 transitions. [2020-10-29 03:16:18,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-29 03:16:18,565 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 80 [2020-10-29 03:16:18,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:16:18,567 INFO L225 Difference]: With dead ends: 157 [2020-10-29 03:16:18,567 INFO L226 Difference]: Without dead ends: 154 [2020-10-29 03:16:18,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=131, Invalid=1509, Unknown=0, NotChecked=0, Total=1640 [2020-10-29 03:16:18,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-29 03:16:18,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 116. [2020-10-29 03:16:18,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-29 03:16:18,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 126 transitions. [2020-10-29 03:16:18,591 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 126 transitions. Word has length 80 [2020-10-29 03:16:18,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:16:18,591 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 126 transitions. [2020-10-29 03:16:18,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 03:16:18,591 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 126 transitions. [2020-10-29 03:16:18,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-29 03:16:18,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:16:18,593 INFO L422 BasicCegarLoop]: trace histogram [7, 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] [2020-10-29 03:16:18,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 03:16:18,593 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:16:18,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:16:18,593 INFO L82 PathProgramCache]: Analyzing trace with hash -163089108, now seen corresponding path program 18 times [2020-10-29 03:16:18,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:16:18,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930356047] [2020-10-29 03:16:18,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:16:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:18,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:19,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:19,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-29 03:16:19,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:19,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 855 [2020-10-29 03:16:19,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:19,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:19,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 03:16:19,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:16:19,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-29 03:16:19,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:20,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:16:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:20,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:20,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:20,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:16:20,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:20,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:20,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:20,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:20,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:20,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:20,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:20,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:20,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:16:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:20,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:20,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:20,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:20,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:20,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:20,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:20,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:20,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:20,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:20,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:20,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:20,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:16:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:20,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:20,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:20,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:20,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:20,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:16:20,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:20,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:20,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:20,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:20,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:16:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:20,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:20,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:20,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:20,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:20,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:20,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:20,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:20,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:20,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:20,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:20,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:20,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:16:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:20,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:20,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:20,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:20,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:20,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:20,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:20,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:20,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:20,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:20,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:16:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:20,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:20,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:20,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:20,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:20,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:20,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:20,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:20,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:20,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:20,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:20,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:20,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 03:16:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:20,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:20,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:20,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:20,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:20,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:20,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:20,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:20,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:20,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 03:16:20,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:20,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:20,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:20,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:20,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:20,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:20,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:20,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:20,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:20,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:20,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:20,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:20,457 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 12 proven. 121 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 03:16:20,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930356047] [2020-10-29 03:16:20,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:16:20,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 03:16:20,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833373584] [2020-10-29 03:16:20,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 03:16:20,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:16:20,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 03:16:20,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-29 03:16:20,460 INFO L87 Difference]: Start difference. First operand 116 states and 126 transitions. Second operand 21 states. [2020-10-29 03:16:22,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:16:22,782 INFO L93 Difference]: Finished difference Result 138 states and 149 transitions. [2020-10-29 03:16:22,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-29 03:16:22,783 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 82 [2020-10-29 03:16:22,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:16:22,785 INFO L225 Difference]: With dead ends: 138 [2020-10-29 03:16:22,785 INFO L226 Difference]: Without dead ends: 135 [2020-10-29 03:16:22,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=121, Invalid=1285, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 03:16:22,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-29 03:16:22,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 87. [2020-10-29 03:16:22,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-29 03:16:22,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 88 transitions. [2020-10-29 03:16:22,803 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 88 transitions. Word has length 82 [2020-10-29 03:16:22,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:16:22,803 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 88 transitions. [2020-10-29 03:16:22,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 03:16:22,804 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 88 transitions. [2020-10-29 03:16:22,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-29 03:16:22,804 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:16:22,805 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:16:22,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 03:16:22,805 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:16:22,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:16:22,805 INFO L82 PathProgramCache]: Analyzing trace with hash -274239440, now seen corresponding path program 19 times [2020-10-29 03:16:22,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:16:22,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988989643] [2020-10-29 03:16:22,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:16:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:22,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:23,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:23,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 03:16:23,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:23,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 701 [2020-10-29 03:16:23,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:23,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:23,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 03:16:23,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:16:23,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 03:16:23,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:24,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:16:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:24,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:24,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:24,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:16:24,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:24,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:24,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:24,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:24,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:24,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:24,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:24,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:24,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:16:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:24,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:24,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:24,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:24,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:24,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:16:24,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:24,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:24,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:24,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:24,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:24,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:24,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 03:16:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:24,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:24,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:24,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:24,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:24,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:24,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:24,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:24,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:24,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:24,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:24,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:24,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:16:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:24,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:24,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:24,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:24,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:24,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:24,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:24,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:24,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:24,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:24,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:24,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:24,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:16:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:24,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:24,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:24,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:24,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:24,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:24,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:24,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:24,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:24,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:24,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:24,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:24,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:16:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:24,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:24,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:24,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:24,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:24,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:24,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:24,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:24,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:24,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:24,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:24,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:24,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:16:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:24,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:24,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:24,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:24,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:24,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:24,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:24,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:24,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:24,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:24,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:24,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:24,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 03:16:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:24,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:24,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:24,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:24,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:24,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:24,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:24,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:24,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:24,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:24,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:24,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:24,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 03:16:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:24,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:24,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:24,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:24,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:24,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:24,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:24,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:24,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:24,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:24,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:24,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 14 proven. 114 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-29 03:16:24,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988989643] [2020-10-29 03:16:24,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:16:24,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 03:16:24,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861862618] [2020-10-29 03:16:24,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 03:16:24,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:16:24,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 03:16:24,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2020-10-29 03:16:24,823 INFO L87 Difference]: Start difference. First operand 87 states and 88 transitions. Second operand 22 states. [2020-10-29 03:16:27,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:16:27,183 INFO L93 Difference]: Finished difference Result 134 states and 144 transitions. [2020-10-29 03:16:27,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 03:16:27,186 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 84 [2020-10-29 03:16:27,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:16:27,188 INFO L225 Difference]: With dead ends: 134 [2020-10-29 03:16:27,188 INFO L226 Difference]: Without dead ends: 131 [2020-10-29 03:16:27,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=131, Invalid=1429, Unknown=0, NotChecked=0, Total=1560 [2020-10-29 03:16:27,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-29 03:16:27,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 124. [2020-10-29 03:16:27,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-29 03:16:27,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 133 transitions. [2020-10-29 03:16:27,214 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 133 transitions. Word has length 84 [2020-10-29 03:16:27,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:16:27,214 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 133 transitions. [2020-10-29 03:16:27,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 03:16:27,215 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 133 transitions. [2020-10-29 03:16:27,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-29 03:16:27,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:16:27,216 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:16:27,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-29 03:16:27,216 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:16:27,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:16:27,217 INFO L82 PathProgramCache]: Analyzing trace with hash 707109074, now seen corresponding path program 20 times [2020-10-29 03:16:27,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:16:27,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1532831787] [2020-10-29 03:16:27,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:16:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:27,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:28,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:28,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 03:16:28,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:28,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 859 [2020-10-29 03:16:28,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:28,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:28,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 03:16:28,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:16:28,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-29 03:16:28,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:29,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:16:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:29,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:29,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:29,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:16:29,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:29,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:16:29,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:29,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:29,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:29,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:29,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:16:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:29,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:29,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:29,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:29,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:29,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:16:29,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:29,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:29,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:29,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:29,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:29,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:29,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 03:16:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:29,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:29,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:29,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:29,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:29,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:29,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:29,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:29,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:29,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:29,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:29,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:29,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:16:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:29,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:29,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:29,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:29,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:29,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:29,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:29,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:29,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:29,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:29,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:29,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:29,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:16:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:29,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:29,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:29,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:29,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:29,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:29,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:29,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:29,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:29,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:29,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:29,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:29,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:16:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:29,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:29,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:29,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:29,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:29,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:29,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:29,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:29,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:29,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:29,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:29,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:29,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:16:29,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:29,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:29,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:29,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:29,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:29,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:29,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:29,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:29,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:29,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:29,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:29,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:29,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 03:16:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:29,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:29,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:29,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:29,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:29,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:29,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:29,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:29,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:29,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:29,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 03:16:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:29,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:29,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:29,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:29,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:29,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:29,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:29,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:29,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:29,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:29,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:29,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:29,450 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 14 proven. 123 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-29 03:16:29,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1532831787] [2020-10-29 03:16:29,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:16:29,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-29 03:16:29,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711315146] [2020-10-29 03:16:29,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-29 03:16:29,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:16:29,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-29 03:16:29,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=461, Unknown=0, NotChecked=0, Total=506 [2020-10-29 03:16:29,452 INFO L87 Difference]: Start difference. First operand 124 states and 133 transitions. Second operand 23 states. [2020-10-29 03:16:31,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:16:31,986 INFO L93 Difference]: Finished difference Result 171 states and 189 transitions. [2020-10-29 03:16:31,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-29 03:16:31,987 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 86 [2020-10-29 03:16:31,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:16:31,990 INFO L225 Difference]: With dead ends: 171 [2020-10-29 03:16:31,990 INFO L226 Difference]: Without dead ends: 168 [2020-10-29 03:16:31,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=138, Invalid=1584, Unknown=0, NotChecked=0, Total=1722 [2020-10-29 03:16:31,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-10-29 03:16:32,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 126. [2020-10-29 03:16:32,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-29 03:16:32,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 136 transitions. [2020-10-29 03:16:32,030 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 136 transitions. Word has length 86 [2020-10-29 03:16:32,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:16:32,030 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 136 transitions. [2020-10-29 03:16:32,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-29 03:16:32,030 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 136 transitions. [2020-10-29 03:16:32,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-29 03:16:32,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:16:32,031 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:16:32,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-29 03:16:32,031 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:16:32,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:16:32,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1109774092, now seen corresponding path program 21 times [2020-10-29 03:16:32,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:16:32,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1193577370] [2020-10-29 03:16:32,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:16:32,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:32,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:32,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:32,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-29 03:16:32,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:32,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 913 [2020-10-29 03:16:32,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:32,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:32,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 03:16:32,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:16:32,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 03:16:32,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:34,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:16:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:34,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:34,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:34,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:16:34,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:34,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:34,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:34,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:34,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:34,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:34,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:34,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:34,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:16:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:34,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:34,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:34,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:34,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:34,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:16:34,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:34,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:34,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:34,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:34,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:34,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:34,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:16:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:34,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:34,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:34,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:34,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:34,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:34,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:34,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:34,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:34,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:34,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:34,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:34,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:16:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:34,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:34,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:34,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:34,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:34,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:34,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:34,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:34,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:34,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:34,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:34,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:34,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:16:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:34,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:34,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:34,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:34,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:34,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:34,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:34,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:34,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:34,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:34,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:34,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:34,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 03:16:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:34,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:34,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:34,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:34,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:34,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:34,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:34,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:34,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:34,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:34,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:34,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:34,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 03:16:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:34,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:34,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:34,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:34,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:34,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:34,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:34,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:34,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:34,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:34,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:34,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:34,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 03:16:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:34,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:34,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:34,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:34,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:34,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:34,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:34,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:34,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:34,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:34,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:34,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:34,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 03:16:34,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:34,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:34,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:34,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:34,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:34,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:34,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:34,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:34,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:34,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:34,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:34,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:34,217 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 14 proven. 134 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-29 03:16:34,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1193577370] [2020-10-29 03:16:34,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:16:34,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 03:16:34,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467108659] [2020-10-29 03:16:34,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 03:16:34,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:16:34,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 03:16:34,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2020-10-29 03:16:34,219 INFO L87 Difference]: Start difference. First operand 126 states and 136 transitions. Second operand 24 states. [2020-10-29 03:16:37,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:16:37,564 INFO L93 Difference]: Finished difference Result 174 states and 193 transitions. [2020-10-29 03:16:37,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-29 03:16:37,565 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 88 [2020-10-29 03:16:37,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:16:37,568 INFO L225 Difference]: With dead ends: 174 [2020-10-29 03:16:37,568 INFO L226 Difference]: Without dead ends: 171 [2020-10-29 03:16:37,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=178, Invalid=2078, Unknown=0, NotChecked=0, Total=2256 [2020-10-29 03:16:37,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-29 03:16:37,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 128. [2020-10-29 03:16:37,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-29 03:16:37,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 139 transitions. [2020-10-29 03:16:37,609 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 139 transitions. Word has length 88 [2020-10-29 03:16:37,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:16:37,609 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 139 transitions. [2020-10-29 03:16:37,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 03:16:37,610 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 139 transitions. [2020-10-29 03:16:37,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-29 03:16:37,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:16:37,611 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:16:37,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-29 03:16:37,611 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:16:37,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:16:37,612 INFO L82 PathProgramCache]: Analyzing trace with hash 917192854, now seen corresponding path program 22 times [2020-10-29 03:16:37,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:16:37,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76830058] [2020-10-29 03:16:37,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:16:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:37,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:38,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:38,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 03:16:38,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:38,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 898 [2020-10-29 03:16:38,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:38,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 03:16:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:16:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 03:16:38,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:40,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:16:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:40,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:40,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:40,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:16:40,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:40,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:40,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:40,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:40,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:40,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:40,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:40,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:40,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:16:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:40,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:40,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:40,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:40,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:40,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:16:40,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:40,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:40,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:40,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:40,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:40,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:40,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:16:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:40,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:40,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:40,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:40,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:40,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:40,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:40,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:40,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:40,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:40,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:40,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:40,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:16:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:40,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:40,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:40,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:40,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:40,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:40,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:40,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:40,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:40,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:40,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:40,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:40,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:16:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:40,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:40,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:40,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:40,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:40,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:40,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:40,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:40,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:40,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:40,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:40,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:40,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:16:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:40,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:40,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:40,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:40,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:40,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:40,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:40,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:40,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:40,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:40,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 03:16:40,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:40,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:40,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:40,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:40,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:40,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:40,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:40,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:40,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:40,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:40,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:40,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:40,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 03:16:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:40,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:40,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:40,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:40,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:40,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:40,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:40,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:40,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:40,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:40,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:40,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:40,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 03:16:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:40,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:40,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:40,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:40,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:40,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:40,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:40,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:40,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:40,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:40,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:40,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:40,225 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 14 proven. 147 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-29 03:16:40,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76830058] [2020-10-29 03:16:40,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:16:40,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 03:16:40,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048049940] [2020-10-29 03:16:40,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 03:16:40,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:16:40,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 03:16:40,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=506, Unknown=0, NotChecked=0, Total=552 [2020-10-29 03:16:40,227 INFO L87 Difference]: Start difference. First operand 128 states and 139 transitions. Second operand 24 states. [2020-10-29 03:16:43,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:16:43,829 INFO L93 Difference]: Finished difference Result 177 states and 197 transitions. [2020-10-29 03:16:43,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-29 03:16:43,830 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 90 [2020-10-29 03:16:43,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:16:43,833 INFO L225 Difference]: With dead ends: 177 [2020-10-29 03:16:43,833 INFO L226 Difference]: Without dead ends: 174 [2020-10-29 03:16:43,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=182, Invalid=2074, Unknown=0, NotChecked=0, Total=2256 [2020-10-29 03:16:43,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-29 03:16:43,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 130. [2020-10-29 03:16:43,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-29 03:16:43,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 142 transitions. [2020-10-29 03:16:43,864 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 142 transitions. Word has length 90 [2020-10-29 03:16:43,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:16:43,865 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 142 transitions. [2020-10-29 03:16:43,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 03:16:43,865 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 142 transitions. [2020-10-29 03:16:43,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-29 03:16:43,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:16:43,866 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:16:43,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-29 03:16:43,866 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:16:43,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:16:43,867 INFO L82 PathProgramCache]: Analyzing trace with hash -890112102, now seen corresponding path program 23 times [2020-10-29 03:16:43,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:16:43,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065878650] [2020-10-29 03:16:43,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:16:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:43,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:44,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:44,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 03:16:44,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:44,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-10-29 03:16:44,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:44,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:44,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 03:16:44,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:16:44,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-29 03:16:44,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:44,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:16:44,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:44,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:44,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:44,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:16:44,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:44,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:44,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:44,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:44,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:44,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:44,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:44,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:44,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:16:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:44,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:44,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:44,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:44,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:44,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:16:44,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:44,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:44,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:44,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:44,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:44,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:44,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 03:16:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:44,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:44,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:44,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:44,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:44,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:44,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:44,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:44,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:44,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:44,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:44,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:44,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:16:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:44,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:44,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:44,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:44,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:44,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:44,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:44,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:44,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:44,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:44,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:44,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:44,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:16:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:44,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:44,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:44,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:44,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:44,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:44,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:44,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:44,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:44,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:44,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:44,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:44,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:16:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:44,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:44,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:44,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:44,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:44,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:44,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:44,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:44,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:44,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:44,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:44,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:44,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:16:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:44,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:44,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:44,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:44,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:44,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:44,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:44,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:44,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:44,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:44,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:44,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:44,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 03:16:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:44,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:44,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:44,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:44,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:44,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:44,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:44,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:44,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:44,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:44,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:44,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:44,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 03:16:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:44,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:44,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:44,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:44,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:44,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:44,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:44,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:44,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:44,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:44,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:44,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:44,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 03:16:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:44,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:44,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:44,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:44,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:44,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:44,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:44,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:44,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:44,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:44,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:44,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:44,723 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 115 proven. 45 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-29 03:16:44,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065878650] [2020-10-29 03:16:44,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:16:44,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 03:16:44,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111206612] [2020-10-29 03:16:44,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 03:16:44,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:16:44,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 03:16:44,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:16:44,726 INFO L87 Difference]: Start difference. First operand 130 states and 142 transitions. Second operand 18 states. [2020-10-29 03:16:45,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:16:45,345 INFO L93 Difference]: Finished difference Result 175 states and 195 transitions. [2020-10-29 03:16:45,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 03:16:45,345 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 92 [2020-10-29 03:16:45,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:16:45,347 INFO L225 Difference]: With dead ends: 175 [2020-10-29 03:16:45,348 INFO L226 Difference]: Without dead ends: 130 [2020-10-29 03:16:45,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=497, Unknown=0, NotChecked=0, Total=650 [2020-10-29 03:16:45,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-29 03:16:45,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-29 03:16:45,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-29 03:16:45,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 141 transitions. [2020-10-29 03:16:45,375 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 141 transitions. Word has length 92 [2020-10-29 03:16:45,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:16:45,376 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 141 transitions. [2020-10-29 03:16:45,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 03:16:45,376 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 141 transitions. [2020-10-29 03:16:45,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-29 03:16:45,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:16:45,377 INFO L422 BasicCegarLoop]: trace histogram [8, 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] [2020-10-29 03:16:45,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-29 03:16:45,377 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:16:45,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:16:45,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1082724424, now seen corresponding path program 24 times [2020-10-29 03:16:45,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:16:45,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077378578] [2020-10-29 03:16:45,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:16:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:45,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:46,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:46,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 03:16:46,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:46,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 858 [2020-10-29 03:16:46,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:46,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:46,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 03:16:46,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:16:46,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 03:16:46,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:47,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:16:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:47,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:47,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:47,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:16:47,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:47,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:47,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:47,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:47,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:47,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:47,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:47,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:47,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:16:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:47,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:47,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:47,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:47,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:47,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:16:47,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:47,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:47,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:47,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:47,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:47,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:47,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:16:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:47,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:47,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:47,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:47,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:47,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:47,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:47,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:47,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:47,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:16:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:47,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:47,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:47,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:47,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:47,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:47,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:47,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:47,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:47,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:47,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:47,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:47,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:16:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:47,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:47,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:47,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:47,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:47,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:16:47,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:47,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:47,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:47,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:47,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:47,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:47,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:16:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:47,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:47,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:47,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:47,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:47,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:16:47,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:47,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:47,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:47,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:47,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:47,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:47,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 03:16:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:47,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:47,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:47,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:47,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:47,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:47,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:47,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:47,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:47,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:47,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:47,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:47,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 03:16:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:47,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:47,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:47,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:47,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:47,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:47,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:47,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:47,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:47,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:47,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:47,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:47,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 03:16:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:47,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:47,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:47,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:47,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:47,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:16:47,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:47,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:47,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:47,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:47,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:47,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:47,320 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 14 proven. 162 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-29 03:16:47,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077378578] [2020-10-29 03:16:47,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:16:47,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-29 03:16:47,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523738844] [2020-10-29 03:16:47,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-29 03:16:47,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:16:47,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-29 03:16:47,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-10-29 03:16:47,322 INFO L87 Difference]: Start difference. First operand 130 states and 141 transitions. Second operand 23 states. [2020-10-29 03:16:50,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:16:50,184 INFO L93 Difference]: Finished difference Result 152 states and 164 transitions. [2020-10-29 03:16:50,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-29 03:16:50,185 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 92 [2020-10-29 03:16:50,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:16:50,187 INFO L225 Difference]: With dead ends: 152 [2020-10-29 03:16:50,187 INFO L226 Difference]: Without dead ends: 149 [2020-10-29 03:16:50,189 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=130, Invalid=1676, Unknown=0, NotChecked=0, Total=1806 [2020-10-29 03:16:50,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-29 03:16:50,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 97. [2020-10-29 03:16:50,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-29 03:16:50,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 98 transitions. [2020-10-29 03:16:50,208 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 98 transitions. Word has length 92 [2020-10-29 03:16:50,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:16:50,209 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 98 transitions. [2020-10-29 03:16:50,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-29 03:16:50,209 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 98 transitions. [2020-10-29 03:16:50,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-29 03:16:50,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:16:50,210 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:16:50,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-29 03:16:50,210 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:16:50,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:16:50,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1334732348, now seen corresponding path program 25 times [2020-10-29 03:16:50,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:16:50,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426795443] [2020-10-29 03:16:50,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:16:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:50,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:51,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:51,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-29 03:16:51,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:51,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1037 [2020-10-29 03:16:51,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:51,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:51,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-29 03:16:51,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:16:51,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-29 03:16:51,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:51,623 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 51 [2020-10-29 03:16:51,785 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2020-10-29 03:16:53,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:16:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:53,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:53,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:53,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:16:53,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:53,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:53,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:53,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:53,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:53,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:16:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:53,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:53,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:53,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:53,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:53,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:16:53,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:53,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:53,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:16:53,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:53,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:16:53,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:53,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 03:16:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:53,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:53,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:53,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:53,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:53,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:53,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:53,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:53,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:53,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:53,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:53,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:53,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:16:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:53,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:53,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:53,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:53,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:53,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:53,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:53,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:53,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:53,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:53,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:53,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:53,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:16:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:53,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:53,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:53,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:53,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:53,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:53,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:53,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:53,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:53,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:53,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:53,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:53,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:16:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:53,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:53,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:53,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:53,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:53,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:53,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:53,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:53,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:53,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:53,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:53,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:53,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:16:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:53,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:53,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:53,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:53,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:53,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:16:53,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:53,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:53,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:53,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:53,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:53,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:53,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 03:16:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:53,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:53,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:53,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:53,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:53,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:53,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:53,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:53,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:53,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:53,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:53,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:53,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 03:16:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:53,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:53,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:53,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:53,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:53,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:16:53,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:53,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:53,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:53,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:53,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:53,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:53,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 03:16:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:53,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:53,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:53,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:16:53,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:53,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:16:53,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:53,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:53,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:16:53,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:16:53,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:16:53,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:53,450 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 16 proven. 153 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-29 03:16:53,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426795443] [2020-10-29 03:16:53,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:16:53,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 03:16:53,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239066068] [2020-10-29 03:16:53,451 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 03:16:53,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:16:53,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 03:16:53,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2020-10-29 03:16:53,452 INFO L87 Difference]: Start difference. First operand 97 states and 98 transitions. Second operand 24 states. [2020-10-29 03:16:54,653 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2020-10-29 03:16:54,913 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2020-10-29 03:16:57,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:16:57,379 INFO L93 Difference]: Finished difference Result 148 states and 159 transitions. [2020-10-29 03:16:57,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-29 03:16:57,380 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 94 [2020-10-29 03:16:57,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:16:57,382 INFO L225 Difference]: With dead ends: 148 [2020-10-29 03:16:57,382 INFO L226 Difference]: Without dead ends: 145 [2020-10-29 03:16:57,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=176, Invalid=2080, Unknown=0, NotChecked=0, Total=2256 [2020-10-29 03:16:57,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-29 03:16:57,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 138. [2020-10-29 03:16:57,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-29 03:16:57,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 148 transitions. [2020-10-29 03:16:57,427 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 148 transitions. Word has length 94 [2020-10-29 03:16:57,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:16:57,427 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 148 transitions. [2020-10-29 03:16:57,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 03:16:57,427 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 148 transitions. [2020-10-29 03:16:57,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-29 03:16:57,431 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:16:57,431 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:16:57,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-29 03:16:57,431 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:16:57,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:16:57,432 INFO L82 PathProgramCache]: Analyzing trace with hash 516535390, now seen corresponding path program 26 times [2020-10-29 03:16:57,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:16:57,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842299532] [2020-10-29 03:16:57,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:16:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:16:57,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:16:58,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:16:58,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-29 03:16:58,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:16:58,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1034 [2020-10-29 03:16:58,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:16:58,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:16:58,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-29 03:16:58,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:16:58,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-29 03:16:58,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:16:59,157 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 53 [2020-10-29 03:17:00,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:17:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:00,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:00,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:00,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:17:00,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:00,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:00,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:00,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:00,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:00,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:00,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:00,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:00,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:17:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:00,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:00,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:00,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:00,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:00,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:17:00,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:00,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:00,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:00,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:00,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:00,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:00,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:17:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:00,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:00,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:00,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:00,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:00,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:00,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:00,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:00,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:00,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:00,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:00,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:00,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:17:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:00,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:00,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:00,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:00,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:00,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:17:00,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:00,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:00,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:00,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:00,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:00,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:00,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:17:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:00,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:00,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:00,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:00,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:00,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:00,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:00,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:00,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:00,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:00,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:00,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:00,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 03:17:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:00,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:00,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:00,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:00,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:00,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:00,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:00,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:00,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:00,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:00,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:00,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:00,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 03:17:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:00,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:00,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:00,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:00,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:00,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:17:00,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:00,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:00,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:00,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:00,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:00,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:00,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 03:17:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:00,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:00,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:00,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:00,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:00,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:00,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:00,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:00,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:00,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:00,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:00,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:00,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 03:17:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:00,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:00,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:00,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:00,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:00,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:00,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:00,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:00,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:00,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:00,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:00,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:00,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 03:17:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:00,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:00,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:00,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:00,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:00,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:17:00,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:00,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:00,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:00,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:00,874 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 16 proven. 164 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-29 03:17:00,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842299532] [2020-10-29 03:17:00,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:17:00,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-29 03:17:00,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596197866] [2020-10-29 03:17:00,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-29 03:17:00,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:17:00,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-29 03:17:00,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=598, Unknown=0, NotChecked=0, Total=650 [2020-10-29 03:17:00,876 INFO L87 Difference]: Start difference. First operand 138 states and 148 transitions. Second operand 26 states. [2020-10-29 03:17:04,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:17:04,926 INFO L93 Difference]: Finished difference Result 189 states and 209 transitions. [2020-10-29 03:17:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-29 03:17:04,928 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 96 [2020-10-29 03:17:04,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:17:04,930 INFO L225 Difference]: With dead ends: 189 [2020-10-29 03:17:04,930 INFO L226 Difference]: Without dead ends: 186 [2020-10-29 03:17:04,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=187, Invalid=2363, Unknown=0, NotChecked=0, Total=2550 [2020-10-29 03:17:04,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2020-10-29 03:17:04,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 140. [2020-10-29 03:17:04,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-29 03:17:04,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 151 transitions. [2020-10-29 03:17:04,961 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 151 transitions. Word has length 96 [2020-10-29 03:17:04,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:17:04,962 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 151 transitions. [2020-10-29 03:17:04,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-29 03:17:04,962 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 151 transitions. [2020-10-29 03:17:04,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-29 03:17:04,963 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:17:04,963 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:17:04,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-29 03:17:04,963 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:17:04,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:17:04,963 INFO L82 PathProgramCache]: Analyzing trace with hash 208273920, now seen corresponding path program 27 times [2020-10-29 03:17:04,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:17:04,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148479381] [2020-10-29 03:17:04,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:17:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:05,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:05,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:05,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 03:17:05,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:05,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 977 [2020-10-29 03:17:05,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:05,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:05,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-29 03:17:05,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:17:05,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 03:17:05,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:07,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:17:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:07,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:07,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:07,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:17:07,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:07,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:07,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:07,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:07,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:07,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:07,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:07,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:07,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:17:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:07,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:07,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:07,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:07,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:07,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:07,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:07,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:07,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:07,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:07,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:17:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:07,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:07,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:07,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:07,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:07,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:07,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:07,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:07,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:07,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:07,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:07,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:07,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:17:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:07,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:07,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:07,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:07,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:07,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:07,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:07,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:07,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:07,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:07,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:07,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:07,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:17:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:07,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:07,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:07,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:07,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:07,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:07,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:07,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:07,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:07,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:07,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:07,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:07,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:17:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:07,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:07,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:07,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:07,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:07,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:07,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:07,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:07,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:07,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:07,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:07,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:07,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 03:17:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:07,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:07,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:07,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:07,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:07,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:07,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:07,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:07,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:07,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:07,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:07,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:07,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 03:17:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:07,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:07,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:07,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:07,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:07,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:07,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:07,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:07,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:07,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:07,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:07,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:07,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 03:17:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:07,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:07,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:07,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:07,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:07,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:07,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:07,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:07,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:07,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:07,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:07,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:07,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 03:17:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:07,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:07,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:07,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:07,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:07,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:07,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:07,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:07,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:07,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:07,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:07,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:07,551 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 16 proven. 177 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-29 03:17:07,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148479381] [2020-10-29 03:17:07,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:17:07,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-29 03:17:07,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920618652] [2020-10-29 03:17:07,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-29 03:17:07,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:17:07,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-29 03:17:07,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=600, Unknown=0, NotChecked=0, Total=650 [2020-10-29 03:17:07,554 INFO L87 Difference]: Start difference. First operand 140 states and 151 transitions. Second operand 26 states. [2020-10-29 03:17:11,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:17:11,603 INFO L93 Difference]: Finished difference Result 192 states and 213 transitions. [2020-10-29 03:17:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-29 03:17:11,604 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 98 [2020-10-29 03:17:11,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:17:11,606 INFO L225 Difference]: With dead ends: 192 [2020-10-29 03:17:11,607 INFO L226 Difference]: Without dead ends: 189 [2020-10-29 03:17:11,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=190, Invalid=2360, Unknown=0, NotChecked=0, Total=2550 [2020-10-29 03:17:11,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-10-29 03:17:11,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 142. [2020-10-29 03:17:11,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-29 03:17:11,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 154 transitions. [2020-10-29 03:17:11,644 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 154 transitions. Word has length 98 [2020-10-29 03:17:11,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:17:11,644 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 154 transitions. [2020-10-29 03:17:11,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-29 03:17:11,644 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 154 transitions. [2020-10-29 03:17:11,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 03:17:11,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:17:11,645 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:17:11,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-29 03:17:11,646 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:17:11,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:17:11,646 INFO L82 PathProgramCache]: Analyzing trace with hash 321744674, now seen corresponding path program 28 times [2020-10-29 03:17:11,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:17:11,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752919638] [2020-10-29 03:17:11,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:17:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:11,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:12,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:12,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 03:17:12,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:12,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1149 [2020-10-29 03:17:12,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:12,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-29 03:17:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:17:12,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 03:17:12,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:14,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:17:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:14,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:14,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:14,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:17:14,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:14,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:14,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:14,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:14,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:14,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:17:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:14,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:14,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:14,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:14,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:14,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:17:14,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:14,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:14,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:14,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:14,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:14,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:14,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:17:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:14,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:14,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:14,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:14,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:14,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:14,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:14,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:14,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:14,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:14,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:14,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:14,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:17:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:14,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:14,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:14,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:14,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:14,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:14,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:14,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:14,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:14,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:14,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:14,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:14,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:17:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:14,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:14,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:14,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:14,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:14,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:14,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:14,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:14,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:14,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:14,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:14,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:14,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:17:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:14,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:14,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:14,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:14,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:14,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:14,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:14,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:14,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:14,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:14,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:14,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:14,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 03:17:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:14,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:14,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:14,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:14,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:14,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:14,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:14,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:14,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:14,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:14,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:14,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:14,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 03:17:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:14,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:14,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:14,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:14,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:14,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:14,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:14,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:14,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:14,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:14,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:14,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:14,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 03:17:14,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:14,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:14,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:14,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:14,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:14,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:14,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:14,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:14,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:14,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:14,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:14,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:14,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 03:17:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:14,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:14,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:14,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:14,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:14,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:14,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:14,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:14,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:14,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:14,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:14,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:14,242 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 16 proven. 192 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-29 03:17:14,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752919638] [2020-10-29 03:17:14,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:17:14,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-29 03:17:14,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463541991] [2020-10-29 03:17:14,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-29 03:17:14,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:17:14,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-29 03:17:14,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=600, Unknown=0, NotChecked=0, Total=650 [2020-10-29 03:17:14,243 INFO L87 Difference]: Start difference. First operand 142 states and 154 transitions. Second operand 26 states. [2020-10-29 03:17:18,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:17:18,524 INFO L93 Difference]: Finished difference Result 195 states and 217 transitions. [2020-10-29 03:17:18,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-29 03:17:18,525 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 100 [2020-10-29 03:17:18,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:17:18,527 INFO L225 Difference]: With dead ends: 195 [2020-10-29 03:17:18,527 INFO L226 Difference]: Without dead ends: 192 [2020-10-29 03:17:18,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=202, Invalid=2554, Unknown=0, NotChecked=0, Total=2756 [2020-10-29 03:17:18,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-29 03:17:18,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 144. [2020-10-29 03:17:18,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-29 03:17:18,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 157 transitions. [2020-10-29 03:17:18,566 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 157 transitions. Word has length 100 [2020-10-29 03:17:18,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:17:18,566 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 157 transitions. [2020-10-29 03:17:18,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-29 03:17:18,566 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 157 transitions. [2020-10-29 03:17:18,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-29 03:17:18,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:17:18,567 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:17:18,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-29 03:17:18,568 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:17:18,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:17:18,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1699208794, now seen corresponding path program 29 times [2020-10-29 03:17:18,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:17:18,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1409323181] [2020-10-29 03:17:18,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:17:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:18,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:19,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:19,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-29 03:17:19,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:19,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 902 [2020-10-29 03:17:19,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:19,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:19,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-29 03:17:19,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:17:19,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-29 03:17:19,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:21,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:17:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:21,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:21,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:21,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:17:21,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:21,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:17:21,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:21,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:21,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:21,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:21,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:21,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:21,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:17:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:21,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:21,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:21,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:21,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:21,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:21,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:21,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:21,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:21,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:21,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:21,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:21,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 03:17:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:21,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:21,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:21,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:21,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:21,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:17:21,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:21,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:21,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:21,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:21,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:17:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:21,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:21,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:21,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:21,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:21,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:17:21,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:21,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:21,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:21,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:21,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:21,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:21,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:17:21,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:21,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:21,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:21,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:21,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:21,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:17:21,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:21,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:21,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:21,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:21,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:21,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:21,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:17:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:21,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:21,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:21,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:21,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:21,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:17:21,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:21,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:21,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:21,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:21,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:21,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:21,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:17:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:21,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:21,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:21,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:21,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:21,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:17:21,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:21,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:21,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:21,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:21,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:21,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:21,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 03:17:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:21,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:21,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:21,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:21,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:21,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:17:21,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:21,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:21,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:21,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:21,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 03:17:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:21,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:21,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:21,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:21,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:21,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:17:21,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:21,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:21,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:21,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:21,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:21,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:21,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 03:17:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:21,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:21,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:21,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:21,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:21,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:17:21,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:21,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:21,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:21,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:21,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:21,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:21,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 03:17:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:21,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:21,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:21,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:21,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:21,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:17:21,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:21,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:21,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:21,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:21,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:21,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:21,940 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 130 proven. 75 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-29 03:17:21,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1409323181] [2020-10-29 03:17:21,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:17:21,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-29 03:17:21,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770353493] [2020-10-29 03:17:21,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-29 03:17:21,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:17:21,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-29 03:17:21,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=540, Unknown=0, NotChecked=0, Total=650 [2020-10-29 03:17:21,943 INFO L87 Difference]: Start difference. First operand 144 states and 157 transitions. Second operand 26 states. [2020-10-29 03:17:23,243 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2020-10-29 03:17:24,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:17:24,978 INFO L93 Difference]: Finished difference Result 192 states and 214 transitions. [2020-10-29 03:17:24,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-29 03:17:24,979 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 102 [2020-10-29 03:17:24,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:17:24,981 INFO L225 Difference]: With dead ends: 192 [2020-10-29 03:17:24,982 INFO L226 Difference]: Without dead ends: 144 [2020-10-29 03:17:24,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=347, Invalid=1909, Unknown=0, NotChecked=0, Total=2256 [2020-10-29 03:17:24,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-29 03:17:25,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-10-29 03:17:25,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-29 03:17:25,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 156 transitions. [2020-10-29 03:17:25,012 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 156 transitions. Word has length 102 [2020-10-29 03:17:25,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:17:25,012 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 156 transitions. [2020-10-29 03:17:25,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-29 03:17:25,012 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 156 transitions. [2020-10-29 03:17:25,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-29 03:17:25,013 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:17:25,013 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:17:25,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-29 03:17:25,013 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:17:25,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:17:25,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1992956868, now seen corresponding path program 30 times [2020-10-29 03:17:25,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:17:25,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [983227630] [2020-10-29 03:17:25,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:17:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:25,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:26,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:26,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 03:17:26,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:26,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1368 [2020-10-29 03:17:26,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:26,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:26,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 03:17:26,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:17:26,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 03:17:26,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:27,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:17:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:27,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:27,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:27,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:17:27,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:27,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:17:27,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:27,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:27,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:27,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:27,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:27,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:27,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:17:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:27,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:27,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:27,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:27,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:27,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:17:27,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:27,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:27,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:27,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:27,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:27,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:27,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:17:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:27,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:27,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:27,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:27,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:27,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:27,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:27,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:27,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:27,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:17:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:27,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:27,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:27,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:27,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:27,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:17:27,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:27,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:27,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:27,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:27,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:27,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:17:27,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:17:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:27,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:27,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:27,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:27,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:27,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:27,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:27,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:27,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:27,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:27,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:27,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:27,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:17:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:27,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:27,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:27,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:27,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:27,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:27,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:27,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:27,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:27,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:27,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 03:17:27,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:27,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:27,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:27,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:27,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:27,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:27,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:27,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:27,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:27,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:27,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:27,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:27,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 03:17:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:27,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:27,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:27,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:27,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:27,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:27,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:27,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:27,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:27,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:27,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:27,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:27,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 03:17:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:27,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:27,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:27,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:27,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:27,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:27,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:27,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:27,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:27,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:27,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:27,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:27,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 03:17:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:27,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:27,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:27,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:27,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:27,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:27,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:27,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:27,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:27,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:27,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:27,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:27,894 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 16 proven. 209 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-29 03:17:27,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [983227630] [2020-10-29 03:17:27,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:17:27,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-29 03:17:27,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998198944] [2020-10-29 03:17:27,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-29 03:17:27,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:17:27,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-29 03:17:27,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-10-29 03:17:27,895 INFO L87 Difference]: Start difference. First operand 144 states and 156 transitions. Second operand 25 states. [2020-10-29 03:17:31,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:17:31,382 INFO L93 Difference]: Finished difference Result 166 states and 179 transitions. [2020-10-29 03:17:31,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-29 03:17:31,383 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 102 [2020-10-29 03:17:31,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:17:31,385 INFO L225 Difference]: With dead ends: 166 [2020-10-29 03:17:31,385 INFO L226 Difference]: Without dead ends: 163 [2020-10-29 03:17:31,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=137, Invalid=1933, Unknown=0, NotChecked=0, Total=2070 [2020-10-29 03:17:31,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-29 03:17:31,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 107. [2020-10-29 03:17:31,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-10-29 03:17:31,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 108 transitions. [2020-10-29 03:17:31,412 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 108 transitions. Word has length 102 [2020-10-29 03:17:31,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:17:31,412 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 108 transitions. [2020-10-29 03:17:31,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-29 03:17:31,412 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 108 transitions. [2020-10-29 03:17:31,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-29 03:17:31,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:17:31,413 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:17:31,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-29 03:17:31,413 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:17:31,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:17:31,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1982059064, now seen corresponding path program 31 times [2020-10-29 03:17:31,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:17:31,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807136135] [2020-10-29 03:17:31,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:17:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:31,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:32,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:32,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 03:17:32,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:32,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 944 [2020-10-29 03:17:32,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:32,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:32,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-29 03:17:32,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:17:32,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 03:17:32,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:33,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:17:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:33,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:34,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:34,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:17:34,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:34,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:34,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:34,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:34,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:34,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:34,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:34,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:34,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:17:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:34,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:34,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:34,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:34,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:34,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:17:34,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:34,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:34,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:34,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:34,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:34,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:34,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:17:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:34,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:34,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:34,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:34,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:34,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:34,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:34,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:34,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:34,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:34,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:17:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:34,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:34,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:34,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:34,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:34,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:34,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:34,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:34,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:34,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:34,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:34,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:34,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:17:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:34,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:34,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:34,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:34,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:34,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:34,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:34,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:34,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:34,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:34,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:34,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:34,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 03:17:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:34,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:34,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:34,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:34,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:34,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:34,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:34,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:34,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:34,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:34,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:34,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:34,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 03:17:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:34,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:34,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:34,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:34,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:34,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:34,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:34,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:34,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:34,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:34,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:34,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:34,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 03:17:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:34,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:34,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:34,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:34,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:34,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:34,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:34,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:34,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:34,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:34,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:34,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 03:17:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:34,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:34,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:34,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:34,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:34,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:34,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:34,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:34,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:34,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:34,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:34,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:34,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 03:17:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:34,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:34,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:34,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:34,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:34,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:34,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:34,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:34,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:34,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:34,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-29 03:17:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:34,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:34,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:34,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:34,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:34,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:34,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:34,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:34,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:34,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:34,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:34,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:34,100 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 18 proven. 198 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-29 03:17:34,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807136135] [2020-10-29 03:17:34,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:17:34,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-29 03:17:34,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117099661] [2020-10-29 03:17:34,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-29 03:17:34,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:17:34,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-29 03:17:34,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=597, Unknown=0, NotChecked=0, Total=650 [2020-10-29 03:17:34,102 INFO L87 Difference]: Start difference. First operand 107 states and 108 transitions. Second operand 26 states. [2020-10-29 03:17:35,140 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-10-29 03:17:35,413 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-29 03:17:37,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:17:37,989 INFO L93 Difference]: Finished difference Result 162 states and 174 transitions. [2020-10-29 03:17:37,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-29 03:17:37,991 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 104 [2020-10-29 03:17:37,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:17:37,992 INFO L225 Difference]: With dead ends: 162 [2020-10-29 03:17:37,992 INFO L226 Difference]: Without dead ends: 159 [2020-10-29 03:17:37,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=174, Invalid=2178, Unknown=0, NotChecked=0, Total=2352 [2020-10-29 03:17:37,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-10-29 03:17:38,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2020-10-29 03:17:38,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-10-29 03:17:38,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 163 transitions. [2020-10-29 03:17:38,036 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 163 transitions. Word has length 104 [2020-10-29 03:17:38,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:17:38,037 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 163 transitions. [2020-10-29 03:17:38,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-29 03:17:38,037 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 163 transitions. [2020-10-29 03:17:38,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-29 03:17:38,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:17:38,038 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:17:38,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-29 03:17:38,038 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:17:38,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:17:38,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1076738410, now seen corresponding path program 32 times [2020-10-29 03:17:38,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:17:38,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790899169] [2020-10-29 03:17:38,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:17:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:38,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:39,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:39,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 03:17:39,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:39,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1214 [2020-10-29 03:17:39,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:39,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:39,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-29 03:17:39,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:17:39,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 03:17:39,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:41,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:17:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:41,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:41,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:41,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:17:41,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:41,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:41,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:41,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:41,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:41,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:41,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:41,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:41,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:17:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:41,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:41,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:41,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:41,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:41,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:17:41,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:41,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:41,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:41,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:41,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:41,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:41,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:17:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:41,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:41,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:41,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:41,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:41,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:41,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:41,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:41,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:41,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:41,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:41,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:41,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:17:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:41,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:41,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:41,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:41,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:41,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:41,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:41,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:41,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:41,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:41,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:41,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:41,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:17:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:41,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:41,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:41,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:41,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:41,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:41,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:41,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:41,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:41,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:41,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:41,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:41,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:17:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:41,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:41,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:41,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:41,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:41,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:41,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:41,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:41,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:41,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 03:17:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:41,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:41,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:41,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:41,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:41,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:41,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:41,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:41,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:41,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:41,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:41,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:41,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 03:17:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:41,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:41,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:41,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:41,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:41,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:41,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:41,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:41,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:41,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:41,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:41,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:41,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 03:17:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:41,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:41,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:41,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:41,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:41,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:41,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:41,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:41,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:41,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:41,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:41,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:41,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 03:17:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:41,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:41,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:41,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:41,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:41,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:41,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:41,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:41,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:41,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:41,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:41,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 03:17:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:41,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:41,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:41,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:41,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:41,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:41,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:41,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:41,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:41,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:41,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:41,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:41,328 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 18 proven. 211 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-29 03:17:41,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790899169] [2020-10-29 03:17:41,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:17:41,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-29 03:17:41,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256841834] [2020-10-29 03:17:41,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-29 03:17:41,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:17:41,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-29 03:17:41,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=649, Unknown=0, NotChecked=0, Total=702 [2020-10-29 03:17:41,330 INFO L87 Difference]: Start difference. First operand 152 states and 163 transitions. Second operand 27 states. [2020-10-29 03:17:45,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:17:45,966 INFO L93 Difference]: Finished difference Result 207 states and 229 transitions. [2020-10-29 03:17:45,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-29 03:17:45,968 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 106 [2020-10-29 03:17:45,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:17:45,970 INFO L225 Difference]: With dead ends: 207 [2020-10-29 03:17:45,970 INFO L226 Difference]: Without dead ends: 204 [2020-10-29 03:17:45,971 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=198, Invalid=2664, Unknown=0, NotChecked=0, Total=2862 [2020-10-29 03:17:45,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-10-29 03:17:46,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 154. [2020-10-29 03:17:46,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-29 03:17:46,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 166 transitions. [2020-10-29 03:17:46,014 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 166 transitions. Word has length 106 [2020-10-29 03:17:46,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:17:46,014 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 166 transitions. [2020-10-29 03:17:46,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-29 03:17:46,014 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 166 transitions. [2020-10-29 03:17:46,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-29 03:17:46,015 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:17:46,015 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:17:46,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-29 03:17:46,016 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:17:46,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:17:46,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1471486836, now seen corresponding path program 33 times [2020-10-29 03:17:46,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:17:46,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071661482] [2020-10-29 03:17:46,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:17:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:46,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:47,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:47,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 03:17:47,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:47,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1477 [2020-10-29 03:17:47,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:47,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:47,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-29 03:17:47,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:17:47,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-29 03:17:47,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:49,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:17:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:49,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:49,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:49,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:17:49,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:49,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:49,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:49,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:49,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:49,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:49,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:49,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:49,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:17:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:49,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:49,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:49,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:49,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:49,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:17:49,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:49,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:49,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:49,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:49,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:49,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:49,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:17:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:49,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:49,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:49,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:49,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:49,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:17:49,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:49,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:49,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:49,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:49,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:49,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:49,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:17:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:49,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:49,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:49,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:49,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:49,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:49,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:49,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:49,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:49,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:49,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:49,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:49,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:17:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:49,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:49,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:49,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:49,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:49,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:49,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:49,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:49,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:49,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:49,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:49,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:49,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:17:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:49,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:49,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:49,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:49,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:49,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:49,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:49,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:49,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:49,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:49,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:49,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:49,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 03:17:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:49,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:49,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:49,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:49,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:49,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:49,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:49,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:49,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:49,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:49,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:49,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:49,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 03:17:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:49,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:49,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:49,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:49,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:49,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:49,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:49,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:49,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:49,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:49,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:49,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:49,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 03:17:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:49,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:49,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:49,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:49,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:49,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:49,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:49,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:49,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:49,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:49,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:49,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:49,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 03:17:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:49,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:49,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:49,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:49,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:49,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:49,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:49,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:49,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:49,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:49,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:49,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:49,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 03:17:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:49,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:49,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:49,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:49,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:49,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:49,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:49,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:49,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:49,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:49,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:49,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:49,704 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 18 proven. 226 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-29 03:17:49,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071661482] [2020-10-29 03:17:49,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:17:49,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-29 03:17:49,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550759398] [2020-10-29 03:17:49,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-29 03:17:49,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:17:49,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-29 03:17:49,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=701, Unknown=0, NotChecked=0, Total=756 [2020-10-29 03:17:49,707 INFO L87 Difference]: Start difference. First operand 154 states and 166 transitions. Second operand 28 states. [2020-10-29 03:17:54,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:17:54,657 INFO L93 Difference]: Finished difference Result 210 states and 233 transitions. [2020-10-29 03:17:54,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-29 03:17:54,659 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 108 [2020-10-29 03:17:54,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:17:54,661 INFO L225 Difference]: With dead ends: 210 [2020-10-29 03:17:54,661 INFO L226 Difference]: Without dead ends: 207 [2020-10-29 03:17:54,662 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=208, Invalid=2872, Unknown=0, NotChecked=0, Total=3080 [2020-10-29 03:17:54,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2020-10-29 03:17:54,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 156. [2020-10-29 03:17:54,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-10-29 03:17:54,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 169 transitions. [2020-10-29 03:17:54,695 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 169 transitions. Word has length 108 [2020-10-29 03:17:54,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:17:54,695 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 169 transitions. [2020-10-29 03:17:54,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-29 03:17:54,695 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 169 transitions. [2020-10-29 03:17:54,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-29 03:17:54,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:17:54,696 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:17:54,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-29 03:17:54,697 INFO L429 AbstractCegarLoop]: === Iteration 37 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:17:54,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:17:54,697 INFO L82 PathProgramCache]: Analyzing trace with hash 2110377774, now seen corresponding path program 34 times [2020-10-29 03:17:54,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:17:54,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213939005] [2020-10-29 03:17:54,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:17:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:54,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:56,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:56,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-29 03:17:56,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:56,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1808 [2020-10-29 03:17:56,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:56,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:56,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-29 03:17:56,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:17:56,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-29 03:17:56,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:58,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:17:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:58,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:58,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:58,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:17:58,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:58,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:58,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:58,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:58,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:58,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:58,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:58,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:58,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:17:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:58,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:58,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:58,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:58,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:58,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:17:58,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:58,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:58,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:17:58,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:58,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:17:58,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:58,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:17:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:58,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:58,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:58,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:58,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:58,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:58,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:58,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:58,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:58,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:58,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:58,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:58,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:17:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:58,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:58,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:58,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:58,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:58,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:58,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:58,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:58,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:58,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:58,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:58,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:58,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:17:58,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:58,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:58,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:58,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:58,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:58,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:58,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:58,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:58,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:58,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:58,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:58,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:58,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:17:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:58,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:58,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:58,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:58,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:58,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:58,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:58,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:58,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:58,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:58,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:58,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:58,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 03:17:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:58,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:58,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:58,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:58,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:58,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:58,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:58,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:58,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:58,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:58,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:58,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:58,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 03:17:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:58,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:58,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:58,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:58,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:58,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:17:58,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:58,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:58,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:58,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:58,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:58,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:58,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 03:17:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:58,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:58,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:58,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:58,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:58,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:58,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:58,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:58,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:58,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:58,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:58,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:58,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 03:17:58,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:58,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:58,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:58,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:58,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:58,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:58,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:58,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:58,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:58,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:58,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:58,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:58,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 03:17:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:17:58,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:17:58,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:17:58,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:17:58,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:17:58,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:17:58,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:17:58,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:17:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:17:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:17:58,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:17:58,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:17:58,330 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 18 proven. 243 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-29 03:17:58,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [213939005] [2020-10-29 03:17:58,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:17:58,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-29 03:17:58,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560384987] [2020-10-29 03:17:58,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-29 03:17:58,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:17:58,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-29 03:17:58,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=702, Unknown=0, NotChecked=0, Total=756 [2020-10-29 03:17:58,332 INFO L87 Difference]: Start difference. First operand 156 states and 169 transitions. Second operand 28 states. [2020-10-29 03:18:03,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:18:03,655 INFO L93 Difference]: Finished difference Result 213 states and 237 transitions. [2020-10-29 03:18:03,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-29 03:18:03,656 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 110 [2020-10-29 03:18:03,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:18:03,659 INFO L225 Difference]: With dead ends: 213 [2020-10-29 03:18:03,659 INFO L226 Difference]: Without dead ends: 210 [2020-10-29 03:18:03,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=217, Invalid=2975, Unknown=0, NotChecked=0, Total=3192 [2020-10-29 03:18:03,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-10-29 03:18:03,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 158. [2020-10-29 03:18:03,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-29 03:18:03,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 172 transitions. [2020-10-29 03:18:03,707 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 172 transitions. Word has length 110 [2020-10-29 03:18:03,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:18:03,708 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 172 transitions. [2020-10-29 03:18:03,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-29 03:18:03,708 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 172 transitions. [2020-10-29 03:18:03,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-29 03:18:03,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:18:03,709 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:18:03,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-29 03:18:03,709 INFO L429 AbstractCegarLoop]: === Iteration 38 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:18:03,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:18:03,710 INFO L82 PathProgramCache]: Analyzing trace with hash 2143001906, now seen corresponding path program 35 times [2020-10-29 03:18:03,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:18:03,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969842817] [2020-10-29 03:18:03,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:18:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:03,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:04,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:04,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-29 03:18:04,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:04,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1065 [2020-10-29 03:18:04,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:04,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:04,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-29 03:18:04,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:18:04,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 121 [2020-10-29 03:18:04,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:05,210 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 47 [2020-10-29 03:18:05,410 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 52 [2020-10-29 03:18:07,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:18:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:07,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:07,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:07,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:18:07,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:07,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:18:07,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:07,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:07,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:18:07,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:07,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:18:07,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:07,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:18:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:07,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:07,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:07,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:07,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:07,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:18:07,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:07,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:07,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:18:07,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:07,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:18:07,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:07,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:18:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:07,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:07,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:07,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:07,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:07,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:07,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:07,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:07,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:07,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:07,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:07,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:07,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:18:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:07,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:07,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:07,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:07,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:07,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:07,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:07,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:07,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:07,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:07,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:07,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:18:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:07,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:07,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:07,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:07,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:07,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:07,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:07,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:07,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:07,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:07,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:07,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:07,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 03:18:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:07,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:07,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:07,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:07,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:07,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:18:07,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:07,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:07,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:07,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:07,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:07,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:07,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 03:18:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:07,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:07,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:07,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:07,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:07,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:18:07,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:07,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:07,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:07,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:07,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 03:18:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:07,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:07,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:07,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:07,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:07,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:07,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:07,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:07,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:07,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:07,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:07,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:07,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 03:18:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:07,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:07,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:07,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:07,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:07,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:18:07,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:07,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:07,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:07,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:07,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:07,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:07,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 03:18:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:07,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:07,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:07,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:07,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:07,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:07,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:07,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:07,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:07,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:07,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:07,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:07,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-29 03:18:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:07,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:07,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:07,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:07,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:07,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:07,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:07,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:07,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:07,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:07,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:07,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:07,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 03:18:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:07,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:07,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:07,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:07,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:07,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:07,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:07,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:07,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:07,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:07,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:07,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:07,315 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 20 proven. 236 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-29 03:18:07,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1969842817] [2020-10-29 03:18:07,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:18:07,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-29 03:18:07,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458000932] [2020-10-29 03:18:07,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-29 03:18:07,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:18:07,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-29 03:18:07,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=649, Unknown=0, NotChecked=0, Total=702 [2020-10-29 03:18:07,317 INFO L87 Difference]: Start difference. First operand 158 states and 172 transitions. Second operand 27 states. [2020-10-29 03:18:08,293 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-29 03:18:08,574 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-29 03:18:11,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:18:11,902 INFO L93 Difference]: Finished difference Result 214 states and 239 transitions. [2020-10-29 03:18:11,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-29 03:18:11,906 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 112 [2020-10-29 03:18:11,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:18:11,907 INFO L225 Difference]: With dead ends: 214 [2020-10-29 03:18:11,907 INFO L226 Difference]: Without dead ends: 211 [2020-10-29 03:18:11,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=176, Invalid=2374, Unknown=0, NotChecked=0, Total=2550 [2020-10-29 03:18:11,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-10-29 03:18:11,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 205. [2020-10-29 03:18:11,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-29 03:18:11,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 229 transitions. [2020-10-29 03:18:11,973 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 229 transitions. Word has length 112 [2020-10-29 03:18:11,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:18:11,973 INFO L481 AbstractCegarLoop]: Abstraction has 205 states and 229 transitions. [2020-10-29 03:18:11,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-29 03:18:11,973 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 229 transitions. [2020-10-29 03:18:11,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-29 03:18:11,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:18:11,975 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:18:11,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-29 03:18:11,975 INFO L429 AbstractCegarLoop]: === Iteration 39 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:18:11,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:18:11,975 INFO L82 PathProgramCache]: Analyzing trace with hash -281503408, now seen corresponding path program 36 times [2020-10-29 03:18:11,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:18:11,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1558975646] [2020-10-29 03:18:11,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:18:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:12,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:13,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:13,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-29 03:18:13,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:13,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1642 [2020-10-29 03:18:13,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:13,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:13,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 03:18:13,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:18:13,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 119 [2020-10-29 03:18:13,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:15,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:18:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:15,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:15,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:15,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:18:15,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:15,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:18:15,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:15,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:15,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:18:15,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:15,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:18:15,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:15,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:18:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:15,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:15,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:15,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:15,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:15,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:18:15,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:15,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:18:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:18:15,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:15,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:18:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:15,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:15,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:15,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:15,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:15,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:15,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:15,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:15,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:15,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:15,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:18:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:15,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:15,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:15,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:15,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:15,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:15,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:15,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:15,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:15,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:15,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:15,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:15,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 03:18:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:15,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:15,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:15,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:15,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:15,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:15,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:15,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:15,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:15,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:15,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:15,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:15,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 03:18:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:15,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:15,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:15,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:15,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:15,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:15,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:15,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:15,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:15,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:15,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:15,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 03:18:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:15,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:15,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:15,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:15,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:15,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:15,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:15,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:15,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:15,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:15,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:15,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:15,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 03:18:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:15,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:15,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:15,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:15,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:15,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:15,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:15,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:15,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:15,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:15,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:15,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:15,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 03:18:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:15,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:15,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:15,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:15,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:15,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:15,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:15,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:15,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:15,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:15,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:15,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:15,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-29 03:18:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:15,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:15,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:15,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:15,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:15,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:15,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:15,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:15,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:15,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:15,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:15,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:15,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 03:18:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:15,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:15,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:15,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:15,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:15,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:15,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:15,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:15,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:15,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:15,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:15,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:15,550 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 18 proven. 262 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-29 03:18:15,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1558975646] [2020-10-29 03:18:15,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:18:15,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-29 03:18:15,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139612531] [2020-10-29 03:18:15,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-29 03:18:15,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:18:15,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-29 03:18:15,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-10-29 03:18:15,552 INFO L87 Difference]: Start difference. First operand 205 states and 229 transitions. Second operand 27 states. [2020-10-29 03:18:20,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:18:20,355 INFO L93 Difference]: Finished difference Result 227 states and 252 transitions. [2020-10-29 03:18:20,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-29 03:18:20,357 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 112 [2020-10-29 03:18:20,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:18:20,359 INFO L225 Difference]: With dead ends: 227 [2020-10-29 03:18:20,359 INFO L226 Difference]: Without dead ends: 224 [2020-10-29 03:18:20,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=165, Invalid=2385, Unknown=0, NotChecked=0, Total=2550 [2020-10-29 03:18:20,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-29 03:18:20,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 205. [2020-10-29 03:18:20,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-29 03:18:20,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 229 transitions. [2020-10-29 03:18:20,439 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 229 transitions. Word has length 112 [2020-10-29 03:18:20,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:18:20,439 INFO L481 AbstractCegarLoop]: Abstraction has 205 states and 229 transitions. [2020-10-29 03:18:20,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-29 03:18:20,440 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 229 transitions. [2020-10-29 03:18:20,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-29 03:18:20,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:18:20,441 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:18:20,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-29 03:18:20,441 INFO L429 AbstractCegarLoop]: === Iteration 40 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:18:20,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:18:20,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1352689364, now seen corresponding path program 37 times [2020-10-29 03:18:20,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:18:20,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576016335] [2020-10-29 03:18:20,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:18:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:20,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:21,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:21,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-29 03:18:21,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:21,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1080 [2020-10-29 03:18:21,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:21,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:21,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-29 03:18:21,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:18:21,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 03:18:21,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:23,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:18:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:23,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:23,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:23,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:18:23,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:23,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:23,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:23,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:23,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:18:23,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:23,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:18:23,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:23,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:18:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:23,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:23,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:23,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:23,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:23,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:18:23,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:23,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:23,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:18:23,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:23,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:18:23,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:23,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:18:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:23,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:23,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:23,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:23,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:23,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:23,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:23,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:23,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:23,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:23,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:23,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:23,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:18:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:23,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:23,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:23,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:23,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:23,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:23,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:23,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:23,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:23,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:23,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:23,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:23,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:18:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:23,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:23,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:23,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:23,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:23,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:23,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:23,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:23,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:23,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:23,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:23,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:23,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:18:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:23,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:23,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:23,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:23,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:23,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:23,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:23,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:23,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:23,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:23,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:23,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:23,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 03:18:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:23,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:23,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:23,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:23,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:23,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:23,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:23,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:23,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:23,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:23,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 03:18:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:23,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:23,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:23,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:23,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:23,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:18:23,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:23,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:23,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:23,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:23,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:23,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:23,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 03:18:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:23,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:23,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:23,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:23,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:23,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:18:23,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:23,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:23,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:23,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:23,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:23,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:23,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 03:18:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:23,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:23,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:23,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:23,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:23,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:18:23,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:23,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:23,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:23,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:23,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:23,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:23,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 03:18:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:23,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:23,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:23,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:23,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:23,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:18:23,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:23,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:23,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:23,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:23,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:23,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:23,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-29 03:18:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:23,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:23,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:23,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:23,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:23,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:23,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:23,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:23,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:23,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:23,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:23,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:23,790 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 20 proven. 249 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-29 03:18:23,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576016335] [2020-10-29 03:18:23,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:18:23,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-29 03:18:23,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38740262] [2020-10-29 03:18:23,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-29 03:18:23,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:18:23,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-29 03:18:23,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=699, Unknown=0, NotChecked=0, Total=756 [2020-10-29 03:18:23,791 INFO L87 Difference]: Start difference. First operand 205 states and 229 transitions. Second operand 28 states. [2020-10-29 03:18:25,123 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-10-29 03:18:25,903 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-10-29 03:18:29,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:18:29,056 INFO L93 Difference]: Finished difference Result 261 states and 296 transitions. [2020-10-29 03:18:29,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-29 03:18:29,058 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 114 [2020-10-29 03:18:29,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:18:29,060 INFO L225 Difference]: With dead ends: 261 [2020-10-29 03:18:29,060 INFO L226 Difference]: Without dead ends: 258 [2020-10-29 03:18:29,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=199, Invalid=2771, Unknown=0, NotChecked=0, Total=2970 [2020-10-29 03:18:29,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-10-29 03:18:29,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 205. [2020-10-29 03:18:29,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-29 03:18:29,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 229 transitions. [2020-10-29 03:18:29,111 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 229 transitions. Word has length 114 [2020-10-29 03:18:29,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:18:29,112 INFO L481 AbstractCegarLoop]: Abstraction has 205 states and 229 transitions. [2020-10-29 03:18:29,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-29 03:18:29,112 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 229 transitions. [2020-10-29 03:18:29,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-29 03:18:29,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:18:29,113 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:18:29,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-29 03:18:29,113 INFO L429 AbstractCegarLoop]: === Iteration 41 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:18:29,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:18:29,114 INFO L82 PathProgramCache]: Analyzing trace with hash 2071547894, now seen corresponding path program 38 times [2020-10-29 03:18:29,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:18:29,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1769131087] [2020-10-29 03:18:29,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:18:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:29,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:30,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:30,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-29 03:18:30,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:30,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1281 [2020-10-29 03:18:30,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:30,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:30,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-29 03:18:30,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:18:30,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 03:18:30,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:32,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:18:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:32,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:32,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:32,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:18:32,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:32,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:18:32,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:32,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:32,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:18:32,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:32,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:18:32,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:32,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:18:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:32,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:32,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:32,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:32,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:32,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:18:32,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:32,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:32,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:18:32,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:32,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:18:32,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:32,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:18:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:32,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:32,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:32,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:32,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:32,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:18:32,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:32,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:32,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:32,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:18:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:32,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:32,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:32,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:32,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:32,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:18:32,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:32,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:32,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:32,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:32,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:32,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:32,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:18:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:32,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:32,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:32,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:32,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:32,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:32,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:32,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:32,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:32,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:32,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:32,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:32,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:18:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:32,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:32,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:32,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:32,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:32,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:32,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:32,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:32,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:32,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:32,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:32,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:32,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 03:18:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:32,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:32,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:32,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:32,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:32,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:32,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:32,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:32,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:32,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:32,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:32,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:32,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 03:18:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:32,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:32,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:32,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:32,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:32,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:32,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:32,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:32,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:32,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:32,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:32,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:32,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 03:18:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:32,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:32,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:32,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:32,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:32,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:32,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:32,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:32,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:32,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:32,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:32,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:32,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 03:18:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:32,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:32,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:32,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:32,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:32,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:32,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:32,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:32,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:32,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:32,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:32,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:32,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 03:18:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:32,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:32,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:32,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:32,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:32,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:32,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:32,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:32,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:32,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:32,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 03:18:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:32,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:32,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:32,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:32,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:32,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:32,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:32,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:32,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:32,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:32,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:32,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:32,678 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 20 proven. 264 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-29 03:18:32,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1769131087] [2020-10-29 03:18:32,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:18:32,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-29 03:18:32,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726545090] [2020-10-29 03:18:32,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-29 03:18:32,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:18:32,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-29 03:18:32,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=754, Unknown=0, NotChecked=0, Total=812 [2020-10-29 03:18:32,680 INFO L87 Difference]: Start difference. First operand 205 states and 229 transitions. Second operand 29 states. [2020-10-29 03:18:35,083 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-10-29 03:18:38,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:18:38,628 INFO L93 Difference]: Finished difference Result 262 states and 297 transitions. [2020-10-29 03:18:38,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-29 03:18:38,629 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 116 [2020-10-29 03:18:38,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:18:38,631 INFO L225 Difference]: With dead ends: 262 [2020-10-29 03:18:38,631 INFO L226 Difference]: Without dead ends: 259 [2020-10-29 03:18:38,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=208, Invalid=2984, Unknown=0, NotChecked=0, Total=3192 [2020-10-29 03:18:38,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-10-29 03:18:38,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 205. [2020-10-29 03:18:38,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-29 03:18:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 229 transitions. [2020-10-29 03:18:38,684 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 229 transitions. Word has length 116 [2020-10-29 03:18:38,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:18:38,684 INFO L481 AbstractCegarLoop]: Abstraction has 205 states and 229 transitions. [2020-10-29 03:18:38,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-29 03:18:38,684 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 229 transitions. [2020-10-29 03:18:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-29 03:18:38,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:18:38,686 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:18:38,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-29 03:18:38,686 INFO L429 AbstractCegarLoop]: === Iteration 42 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:18:38,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:18:38,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1404860568, now seen corresponding path program 39 times [2020-10-29 03:18:38,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:18:38,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76974921] [2020-10-29 03:18:38,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:18:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:38,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:40,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:40,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-29 03:18:40,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:40,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1518 [2020-10-29 03:18:40,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:40,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:40,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-29 03:18:40,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:18:40,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-29 03:18:40,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:42,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:18:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:42,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:42,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:42,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:18:42,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:42,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:42,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:42,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:42,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:18:42,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:42,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:18:42,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:42,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:18:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:42,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:42,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:42,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:42,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:42,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:18:42,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:42,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:42,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:18:42,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:42,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:18:42,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:42,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:18:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:42,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:42,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:42,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:42,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:42,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:42,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:42,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:42,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:42,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:42,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:42,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:42,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:18:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:42,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:42,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:42,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:42,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:42,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:42,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:42,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:42,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:42,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:42,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:42,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:42,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:18:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:42,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:42,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:42,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:42,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:42,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:42,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:42,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:42,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:42,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:42,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:42,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:42,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:18:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:42,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:42,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:42,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:42,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:42,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:42,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:42,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:42,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:42,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:42,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:42,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:42,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 03:18:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:42,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:42,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:42,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:42,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:42,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:42,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:42,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:42,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:42,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:42,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 03:18:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:42,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:42,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:42,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:42,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:42,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:42,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:42,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:42,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:42,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 03:18:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:42,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:42,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:42,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:42,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:42,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:42,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:42,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:42,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:42,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:42,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:42,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:42,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 03:18:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:42,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:42,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:42,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:42,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:42,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:18:42,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:42,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:42,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:42,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:42,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 03:18:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:42,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:42,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:42,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:42,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:42,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:42,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:42,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:42,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:42,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:42,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:42,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:42,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-29 03:18:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:42,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:42,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:42,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:42,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:42,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:18:42,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:42,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:42,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:42,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:42,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:42,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:42,622 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 20 proven. 281 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-29 03:18:42,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76974921] [2020-10-29 03:18:42,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:18:42,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-29 03:18:42,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187365054] [2020-10-29 03:18:42,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-29 03:18:42,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:18:42,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-29 03:18:42,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=811, Unknown=0, NotChecked=0, Total=870 [2020-10-29 03:18:42,623 INFO L87 Difference]: Start difference. First operand 205 states and 229 transitions. Second operand 30 states. [2020-10-29 03:18:48,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:18:48,597 INFO L93 Difference]: Finished difference Result 225 states and 250 transitions. [2020-10-29 03:18:48,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-29 03:18:48,599 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 118 [2020-10-29 03:18:48,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:18:48,601 INFO L225 Difference]: With dead ends: 225 [2020-10-29 03:18:48,601 INFO L226 Difference]: Without dead ends: 222 [2020-10-29 03:18:48,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=221, Invalid=3201, Unknown=0, NotChecked=0, Total=3422 [2020-10-29 03:18:48,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-10-29 03:18:48,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 166. [2020-10-29 03:18:48,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-29 03:18:48,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 180 transitions. [2020-10-29 03:18:48,652 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 180 transitions. Word has length 118 [2020-10-29 03:18:48,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:18:48,652 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 180 transitions. [2020-10-29 03:18:48,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-29 03:18:48,653 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 180 transitions. [2020-10-29 03:18:48,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-29 03:18:48,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:18:48,654 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:18:48,654 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-29 03:18:48,654 INFO L429 AbstractCegarLoop]: === Iteration 43 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:18:48,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:18:48,655 INFO L82 PathProgramCache]: Analyzing trace with hash 923927196, now seen corresponding path program 40 times [2020-10-29 03:18:48,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:18:48,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [50006248] [2020-10-29 03:18:48,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:18:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:48,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:49,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:49,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-29 03:18:49,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:49,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1212 [2020-10-29 03:18:49,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:49,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:49,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-29 03:18:49,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:18:49,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-29 03:18:49,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:52,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:18:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:52,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:52,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:52,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:18:52,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:52,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:18:52,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:52,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:18:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:52,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:18:52,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:52,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 03:18:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:52,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:52,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:52,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:52,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:52,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:18:52,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:52,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:52,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:18:52,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:52,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:18:52,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:52,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:18:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:52,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:52,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:52,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:52,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:52,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:52,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:52,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:52,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:52,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:52,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:52,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:52,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:18:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:52,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:52,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:52,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:52,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:52,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:52,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:52,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:52,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:52,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:52,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:52,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:52,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:18:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:52,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:52,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:52,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:52,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:52,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:52,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:52,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:52,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:52,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:52,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:52,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:52,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 03:18:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:52,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:52,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:52,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:52,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:52,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:18:52,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:52,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:52,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:52,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 03:18:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:52,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:52,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:52,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:52,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:52,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:52,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:52,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:52,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:52,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:52,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:52,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:52,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 03:18:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:52,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:52,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:52,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:52,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:52,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:52,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:52,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:52,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:52,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:52,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:52,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:52,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 03:18:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:52,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:52,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:52,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:52,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:52,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:52,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:52,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:52,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:52,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:52,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:52,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:52,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 03:18:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:52,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:52,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:52,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:52,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:52,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:52,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:52,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:52,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:52,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:52,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-29 03:18:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:52,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:52,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:52,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:52,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:52,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:52,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:52,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:52,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:52,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:52,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:52,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:52,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 03:18:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:52,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:52,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:52,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:52,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:52,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:52,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:52,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:52,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:52,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:52,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:52,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:52,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-10-29 03:18:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:52,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:18:52,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:18:52,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:18:52,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:18:52,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:18:52,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:18:52,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:18:52,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:18:52,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:18:52,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:18:52,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:18:52,638 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 242 proven. 58 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-29 03:18:52,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [50006248] [2020-10-29 03:18:52,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:18:52,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-29 03:18:52,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966930972] [2020-10-29 03:18:52,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-29 03:18:52,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:18:52,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-29 03:18:52,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=612, Unknown=0, NotChecked=0, Total=756 [2020-10-29 03:18:52,640 INFO L87 Difference]: Start difference. First operand 166 states and 180 transitions. Second operand 28 states. [2020-10-29 03:18:53,954 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-10-29 03:18:54,205 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-10-29 03:18:54,453 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-10-29 03:18:56,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:18:56,336 INFO L93 Difference]: Finished difference Result 222 states and 247 transitions. [2020-10-29 03:18:56,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-29 03:18:56,337 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 120 [2020-10-29 03:18:56,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:18:56,338 INFO L225 Difference]: With dead ends: 222 [2020-10-29 03:18:56,338 INFO L226 Difference]: Without dead ends: 166 [2020-10-29 03:18:56,339 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 27 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=422, Invalid=2128, Unknown=0, NotChecked=0, Total=2550 [2020-10-29 03:18:56,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-10-29 03:18:56,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-10-29 03:18:56,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-29 03:18:56,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 179 transitions. [2020-10-29 03:18:56,389 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 179 transitions. Word has length 120 [2020-10-29 03:18:56,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:18:56,389 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 179 transitions. [2020-10-29 03:18:56,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-29 03:18:56,389 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 179 transitions. [2020-10-29 03:18:56,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-29 03:18:56,390 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:18:56,391 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:18:56,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-29 03:18:56,391 INFO L429 AbstractCegarLoop]: === Iteration 44 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:18:56,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:18:56,391 INFO L82 PathProgramCache]: Analyzing trace with hash 668467386, now seen corresponding path program 41 times [2020-10-29 03:18:56,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:18:56,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201893928] [2020-10-29 03:18:56,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:18:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:18:56,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking...