/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-tiling/rewrev.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:11:30,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:11:30,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:11:30,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:11:30,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:11:30,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:11:30,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:11:30,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:11:30,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:11:30,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:11:30,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:11:30,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:11:30,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:11:30,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:11:30,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:11:30,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:11:30,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:11:30,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:11:30,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:11:30,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:11:30,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:11:30,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:11:30,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:11:30,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:11:30,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:11:30,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:11:30,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:11:30,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:11:30,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:11:30,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:11:30,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:11:30,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:11:30,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:11:30,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:11:30,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:11:30,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:11:30,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:11:30,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:11:30,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:11:30,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:11:30,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:11:30,385 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 04:11:30,461 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:11:30,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:11:30,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:11:30,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:11:30,467 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:11:30,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:11:30,467 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:11:30,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:11:30,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:11:30,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:11:30,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:11:30,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:11:30,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:11:30,470 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:11:30,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:11:30,471 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:11:30,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:11:30,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:11:30,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:11:30,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:11:30,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:11:30,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:11:30,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:11:30,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:11:30,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:11:30,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:11:30,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:11:30,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:11:30,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:11:30,474 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:11:30,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:11:30,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:11:30,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:11:30,958 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:11:30,959 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:11:30,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/rewrev.c [2020-10-29 04:11:31,042 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9b21fb39/8d50c5d620204ac5b4c7b4c52832fcba/FLAGc5a53e357 [2020-10-29 04:11:31,705 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:11:31,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-tiling/rewrev.c [2020-10-29 04:11:31,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9b21fb39/8d50c5d620204ac5b4c7b4c52832fcba/FLAGc5a53e357 [2020-10-29 04:11:32,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9b21fb39/8d50c5d620204ac5b4c7b4c52832fcba [2020-10-29 04:11:32,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:11:32,070 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:11:32,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:11:32,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:11:32,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:11:32,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:11:32" (1/1) ... [2020-10-29 04:11:32,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68da4ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:11:32, skipping insertion in model container [2020-10-29 04:11:32,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:11:32" (1/1) ... [2020-10-29 04:11:32,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:11:32,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:11:32,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:11:32,312 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:11:32,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:11:32,352 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:11:32,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:11:32 WrapperNode [2020-10-29 04:11:32,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:11:32,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:11:32,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:11:32,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:11:32,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:11:32" (1/1) ... [2020-10-29 04:11:32,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:11:32" (1/1) ... [2020-10-29 04:11:32,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:11:32" (1/1) ... [2020-10-29 04:11:32,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:11:32" (1/1) ... [2020-10-29 04:11:32,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:11:32" (1/1) ... [2020-10-29 04:11:32,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:11:32" (1/1) ... [2020-10-29 04:11:32,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:11:32" (1/1) ... [2020-10-29 04:11:32,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:11:32,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:11:32,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:11:32,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:11:32,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:11:32" (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 04:11:32,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:11:32,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:11:32,501 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:11:32,501 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 04:11:32,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 04:11:32,502 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:11:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:11:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:11:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:11:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:11:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 04:11:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 04:11:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:11:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-29 04:11:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:11:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-29 04:11:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:11:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:11:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:11:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:11:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:11:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:11:32,809 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:11:32,809 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-29 04:11:32,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:11:32 BoogieIcfgContainer [2020-10-29 04:11:32,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:11:32,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:11:32,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:11:32,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:11:32,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:11:32" (1/3) ... [2020-10-29 04:11:32,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed988b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:11:32, skipping insertion in model container [2020-10-29 04:11:32,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:11:32" (2/3) ... [2020-10-29 04:11:32,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed988b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:11:32, skipping insertion in model container [2020-10-29 04:11:32,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:11:32" (3/3) ... [2020-10-29 04:11:32,824 INFO L111 eAbstractionObserver]: Analyzing ICFG rewrev.c [2020-10-29 04:11:32,843 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:11:32,849 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:11:32,869 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:11:32,904 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:11:32,905 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:11:32,905 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:11:32,905 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:11:32,905 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:11:32,905 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:11:32,906 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:11:32,906 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:11:32,931 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-29 04:11:32,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-29 04:11:32,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:32,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:32,953 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:32,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:32,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1534732962, now seen corresponding path program 1 times [2020-10-29 04:11:32,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:32,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822097003] [2020-10-29 04:11:32,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:33,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:33,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:33,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:33,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 04:11:33,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:33,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-29 04:11:33,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:33,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:33,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:33,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:11:33,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:33,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-29 04:11:33,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:33,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:33,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:33,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:33,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:33,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 04:11:33,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:33,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:33,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:33,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:33,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:33,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:33,645 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 04:11:33,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822097003] [2020-10-29 04:11:33,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:11:33,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 04:11:33,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510295157] [2020-10-29 04:11:33,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-29 04:11:33,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:33,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-29 04:11:33,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-29 04:11:33,677 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 3 states. [2020-10-29 04:11:33,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:33,790 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2020-10-29 04:11:33,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-29 04:11:33,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-10-29 04:11:33,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:33,802 INFO L225 Difference]: With dead ends: 48 [2020-10-29 04:11:33,803 INFO L226 Difference]: Without dead ends: 23 [2020-10-29 04:11:33,807 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-29 04:11:33,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-29 04:11:33,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-29 04:11:33,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-29 04:11:33,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2020-10-29 04:11:33,856 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 15 [2020-10-29 04:11:33,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:33,856 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2020-10-29 04:11:33,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-29 04:11:33,857 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2020-10-29 04:11:33,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-29 04:11:33,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:33,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:33,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:11:33,859 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:33,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:33,860 INFO L82 PathProgramCache]: Analyzing trace with hash 353035087, now seen corresponding path program 1 times [2020-10-29 04:11:33,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:33,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422944704] [2020-10-29 04:11:33,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:33,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:34,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:34,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-29 04:11:34,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:34,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-29 04:11:34,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:34,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:34,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:34,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:11:34,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:11:34,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:34,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:34,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:34,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:34,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:34,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:34,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:34,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 04:11:34,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:34,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:34,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:34,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:34,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:34,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:34,144 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 04:11:34,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422944704] [2020-10-29 04:11:34,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:11:34,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:11:34,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921549571] [2020-10-29 04:11:34,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:11:34,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:34,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:11:34,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:11:34,149 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 4 states. [2020-10-29 04:11:34,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:34,280 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2020-10-29 04:11:34,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:11:34,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-29 04:11:34,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:34,282 INFO L225 Difference]: With dead ends: 43 [2020-10-29 04:11:34,282 INFO L226 Difference]: Without dead ends: 27 [2020-10-29 04:11:34,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:11:34,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-29 04:11:34,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2020-10-29 04:11:34,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-29 04:11:34,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2020-10-29 04:11:34,293 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 15 [2020-10-29 04:11:34,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:34,294 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2020-10-29 04:11:34,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:11:34,294 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2020-10-29 04:11:34,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-29 04:11:34,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:34,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:34,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:11:34,296 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:34,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:34,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1307166964, now seen corresponding path program 1 times [2020-10-29 04:11:34,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:34,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687459841] [2020-10-29 04:11:34,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:34,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:34,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:34,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:34,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-29 04:11:34,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:11:34,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 248 [2020-10-29 04:11:34,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:34,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:34,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:11:34,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:11:34,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:34,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:34,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:34,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:34,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:34,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:34,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:34,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 04:11:34,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:34,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:34,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:34,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:34,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:34,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:34,654 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 04:11:34,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687459841] [2020-10-29 04:11:34,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:34,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:11:34,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355818105] [2020-10-29 04:11:34,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:11:34,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:34,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:11:34,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:11:34,658 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 5 states. [2020-10-29 04:11:34,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:34,779 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2020-10-29 04:11:34,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:11:34,780 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-29 04:11:34,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:34,781 INFO L225 Difference]: With dead ends: 40 [2020-10-29 04:11:34,781 INFO L226 Difference]: Without dead ends: 28 [2020-10-29 04:11:34,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:11:34,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-29 04:11:34,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-29 04:11:34,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-29 04:11:34,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-10-29 04:11:34,790 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 19 [2020-10-29 04:11:34,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:34,791 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-10-29 04:11:34,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:11:34,791 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-10-29 04:11:34,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-29 04:11:34,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:34,792 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:34,792 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:11:34,793 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:34,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:34,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1246971493, now seen corresponding path program 1 times [2020-10-29 04:11:34,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:34,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1772743737] [2020-10-29 04:11:34,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:34,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:34,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:35,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:35,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:36,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:36,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 04:11:36,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:11:36,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1466 [2020-10-29 04:11:36,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:36,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:36,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 04:11:36,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:11:36,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 04:11:36,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:36,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:36,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:36,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:36,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:36,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:36,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:11:36,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:36,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:36,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:36,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:36,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:36,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:36,593 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 04:11:36,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1772743737] [2020-10-29 04:11:36,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:36,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 04:11:36,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512330823] [2020-10-29 04:11:36,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 04:11:36,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:36,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 04:11:36,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:11:36,597 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 11 states. [2020-10-29 04:11:37,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:37,078 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2020-10-29 04:11:37,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 04:11:37,079 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2020-10-29 04:11:37,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:37,080 INFO L225 Difference]: With dead ends: 41 [2020-10-29 04:11:37,080 INFO L226 Difference]: Without dead ends: 38 [2020-10-29 04:11:37,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-10-29 04:11:37,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-29 04:11:37,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2020-10-29 04:11:37,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-29 04:11:37,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2020-10-29 04:11:37,091 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2020-10-29 04:11:37,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:37,091 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2020-10-29 04:11:37,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 04:11:37,092 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2020-10-29 04:11:37,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-29 04:11:37,093 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:37,093 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:37,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:11:37,093 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:37,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:37,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1268347716, now seen corresponding path program 1 times [2020-10-29 04:11:37,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:37,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507742658] [2020-10-29 04:11:37,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:37,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:37,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:37,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:37,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:37,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:37,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:38,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:38,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 04:11:38,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 04:11:38,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1755 [2020-10-29 04:11:38,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:38,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:38,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 04:11:38,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:11:38,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 04:11:38,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:39,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:39,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:39,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:39,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:39,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:39,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 04:11:39,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:39,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:39,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:39,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:39,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:39,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 04:11:39,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 04:11:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:39,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:39,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:39,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:39,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:39,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 04:11:39,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:39,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:39,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:39,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:39,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:39,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:39,221 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:11:39,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507742658] [2020-10-29 04:11:39,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:39,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 04:11:39,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585837455] [2020-10-29 04:11:39,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 04:11:39,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:39,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 04:11:39,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:11:39,225 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 13 states. [2020-10-29 04:11:39,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:39,895 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2020-10-29 04:11:39,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 04:11:39,896 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31 [2020-10-29 04:11:39,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:39,902 INFO L225 Difference]: With dead ends: 62 [2020-10-29 04:11:39,902 INFO L226 Difference]: Without dead ends: 59 [2020-10-29 04:11:39,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:11:39,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-29 04:11:39,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 52. [2020-10-29 04:11:39,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-29 04:11:39,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2020-10-29 04:11:39,943 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 57 transitions. Word has length 31 [2020-10-29 04:11:39,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:39,943 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 57 transitions. [2020-10-29 04:11:39,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 04:11:39,943 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 57 transitions. [2020-10-29 04:11:39,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-29 04:11:39,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:39,949 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:39,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:11:39,949 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:39,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:39,950 INFO L82 PathProgramCache]: Analyzing trace with hash -108368151, now seen corresponding path program 2 times [2020-10-29 04:11:39,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:39,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1769693246] [2020-10-29 04:11:39,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:39,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:40,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:40,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:40,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:40,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:40,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:40,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:40,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:42,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:42,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-29 04:11:42,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 04:11:42,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2363 [2020-10-29 04:11:42,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:42,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:42,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 04:11:42,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:11:42,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 04:11:42,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:42,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:42,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:42,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:42,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:42,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:42,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:42,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:42,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:42,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:42,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:42,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:42,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 04:11:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:42,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:42,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:42,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:42,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:42,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:42,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:42,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:42,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:42,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:42,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:42,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:42,583 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-29 04:11:42,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1769693246] [2020-10-29 04:11:42,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:42,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 04:11:42,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464258388] [2020-10-29 04:11:42,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 04:11:42,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:42,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 04:11:42,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:11:42,586 INFO L87 Difference]: Start difference. First operand 52 states and 57 transitions. Second operand 14 states. [2020-10-29 04:11:43,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:43,228 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2020-10-29 04:11:43,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 04:11:43,229 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 35 [2020-10-29 04:11:43,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:43,231 INFO L225 Difference]: With dead ends: 67 [2020-10-29 04:11:43,231 INFO L226 Difference]: Without dead ends: 64 [2020-10-29 04:11:43,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2020-10-29 04:11:43,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-29 04:11:43,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 42. [2020-10-29 04:11:43,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-29 04:11:43,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2020-10-29 04:11:43,242 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 35 [2020-10-29 04:11:43,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:43,242 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2020-10-29 04:11:43,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 04:11:43,242 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2020-10-29 04:11:43,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-29 04:11:43,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:43,244 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:43,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:11:43,244 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:43,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:43,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1964346387, now seen corresponding path program 3 times [2020-10-29 04:11:43,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:43,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1033825389] [2020-10-29 04:11:43,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:43,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:43,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:43,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:43,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-29 04:11:43,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:11:43,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-10-29 04:11:43,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:43,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:43,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 04:11:43,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:11:43,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-29 04:11:43,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:43,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:43,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:43,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:43,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:43,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:43,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:11:43,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:43,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:43,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:43,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:43,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:43,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:43,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 04:11:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:43,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:43,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:43,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:43,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:43,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:43,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:43,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:43,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:43,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:43,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:43,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:43,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 04:11:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:43,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:43,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:43,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:43,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:43,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:43,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:43,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:43,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:43,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:43,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:43,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:43,859 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 04:11:43,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1033825389] [2020-10-29 04:11:43,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:43,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 04:11:43,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077865320] [2020-10-29 04:11:43,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 04:11:43,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:43,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 04:11:43,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:11:43,863 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 8 states. [2020-10-29 04:11:44,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:44,151 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2020-10-29 04:11:44,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 04:11:44,152 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2020-10-29 04:11:44,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:44,153 INFO L225 Difference]: With dead ends: 84 [2020-10-29 04:11:44,153 INFO L226 Difference]: Without dead ends: 48 [2020-10-29 04:11:44,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:11:44,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-29 04:11:44,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2020-10-29 04:11:44,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-29 04:11:44,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2020-10-29 04:11:44,164 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 39 [2020-10-29 04:11:44,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:44,164 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2020-10-29 04:11:44,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 04:11:44,164 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2020-10-29 04:11:44,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-29 04:11:44,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:44,166 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:44,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 04:11:44,166 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:44,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:44,167 INFO L82 PathProgramCache]: Analyzing trace with hash -238290286, now seen corresponding path program 4 times [2020-10-29 04:11:44,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:44,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1329739344] [2020-10-29 04:11:44,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:44,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:44,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:44,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:44,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:44,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:45,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:47,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:47,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-29 04:11:47,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 04:11:47,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3198 [2020-10-29 04:11:47,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:47,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:47,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 04:11:47,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:11:47,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-29 04:11:47,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:47,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:47,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:47,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:47,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:47,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:47,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:11:47,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:47,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:47,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:47,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:47,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:47,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:47,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 04:11:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:47,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:47,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:47,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:47,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:47,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:11:47,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:47,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:47,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:47,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:47,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:47,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:47,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 04:11:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:47,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:47,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:47,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:47,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:47,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:11:47,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:47,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:47,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:47,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:47,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:47,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:47,811 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 04:11:47,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1329739344] [2020-10-29 04:11:47,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:47,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 04:11:47,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702217046] [2020-10-29 04:11:47,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 04:11:47,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:47,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 04:11:47,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:11:47,813 INFO L87 Difference]: Start difference. First operand 46 states and 48 transitions. Second operand 14 states. [2020-10-29 04:11:48,661 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-10-29 04:11:48,793 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2020-10-29 04:11:49,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:49,039 INFO L93 Difference]: Finished difference Result 76 states and 83 transitions. [2020-10-29 04:11:49,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 04:11:49,041 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2020-10-29 04:11:49,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:49,042 INFO L225 Difference]: With dead ends: 76 [2020-10-29 04:11:49,042 INFO L226 Difference]: Without dead ends: 56 [2020-10-29 04:11:49,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2020-10-29 04:11:49,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-29 04:11:49,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2020-10-29 04:11:49,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-29 04:11:49,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2020-10-29 04:11:49,053 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 43 [2020-10-29 04:11:49,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:49,053 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2020-10-29 04:11:49,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 04:11:49,053 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2020-10-29 04:11:49,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-29 04:11:49,054 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:49,055 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:49,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 04:11:49,055 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:49,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:49,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1771022007, now seen corresponding path program 5 times [2020-10-29 04:11:49,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:49,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780137193] [2020-10-29 04:11:49,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:49,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:49,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:49,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:49,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:50,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:50,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:51,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:51,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-29 04:11:51,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 04:11:51,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2801 [2020-10-29 04:11:51,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:51,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:51,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 04:11:51,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:11:51,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-29 04:11:51,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:52,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:52,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:52,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:52,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:52,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:52,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:52,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:52,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:52,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:52,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:52,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:52,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:52,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 04:11:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:52,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:52,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:52,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:52,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:52,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 04:11:52,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:52,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:52,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:52,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:52,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:52,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:52,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 04:11:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:52,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:52,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:52,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:52,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:52,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:52,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:52,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:52,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:52,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:52,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:52,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 04:11:52,259 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-29 04:11:52,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780137193] [2020-10-29 04:11:52,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:52,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 04:11:52,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996702613] [2020-10-29 04:11:52,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 04:11:52,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:52,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 04:11:52,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:11:52,261 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 14 states. [2020-10-29 04:11:53,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:53,594 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2020-10-29 04:11:53,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 04:11:53,595 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 47 [2020-10-29 04:11:53,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:53,597 INFO L225 Difference]: With dead ends: 68 [2020-10-29 04:11:53,597 INFO L226 Difference]: Without dead ends: 65 [2020-10-29 04:11:53,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=171, Invalid=759, Unknown=0, NotChecked=0, Total=930 [2020-10-29 04:11:53,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-29 04:11:53,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2020-10-29 04:11:53,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-29 04:11:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2020-10-29 04:11:53,612 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 47 [2020-10-29 04:11:53,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:53,612 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2020-10-29 04:11:53,612 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 04:11:53,612 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2020-10-29 04:11:53,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-29 04:11:53,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:53,613 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:53,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 04:11:53,614 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:53,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:53,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1883536288, now seen corresponding path program 6 times [2020-10-29 04:11:53,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:53,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866958027] [2020-10-29 04:11:53,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:53,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:53,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:54,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:54,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:54,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:54,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:54,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:55,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:57,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:57,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 04:11:57,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 04:11:57,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3754 [2020-10-29 04:11:57,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:57,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:57,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 04:11:57,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:11:57,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-29 04:11:57,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:11:57,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:11:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:57,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:57,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:57,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:11:57,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:57,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:11:57,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:57,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:57,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:11:57,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:57,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:11:57,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:57,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 04:11:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:57,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:57,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:57,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:57,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:57,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:11:57,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:57,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:57,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:57,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:57,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:57,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:57,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 04:11:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:57,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:57,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:57,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:57,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:57,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:11:57,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:57,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:57,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:57,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:57,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:57,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:57,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 04:11:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:57,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:57,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:11:57,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:11:57,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:11:57,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:11:57,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:11:57,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:11:57,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:11:57,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:11:57,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:11:57,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:11:57,937 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 34 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 04:11:57,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [866958027] [2020-10-29 04:11:57,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:11:57,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 04:11:57,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282791265] [2020-10-29 04:11:57,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 04:11:57,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:11:57,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 04:11:57,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2020-10-29 04:11:57,940 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand 15 states. [2020-10-29 04:11:58,942 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-10-29 04:11:59,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:11:59,257 INFO L93 Difference]: Finished difference Result 103 states and 114 transitions. [2020-10-29 04:11:59,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 04:11:59,258 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 55 [2020-10-29 04:11:59,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:11:59,262 INFO L225 Difference]: With dead ends: 103 [2020-10-29 04:11:59,262 INFO L226 Difference]: Without dead ends: 79 [2020-10-29 04:11:59,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=130, Invalid=520, Unknown=0, NotChecked=0, Total=650 [2020-10-29 04:11:59,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-29 04:11:59,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 62. [2020-10-29 04:11:59,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-29 04:11:59,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2020-10-29 04:11:59,284 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 55 [2020-10-29 04:11:59,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:11:59,284 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2020-10-29 04:11:59,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 04:11:59,285 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2020-10-29 04:11:59,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-29 04:11:59,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:11:59,293 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:11:59,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 04:11:59,294 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:11:59,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:11:59,294 INFO L82 PathProgramCache]: Analyzing trace with hash -62054139, now seen corresponding path program 7 times [2020-10-29 04:11:59,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:11:59,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450332940] [2020-10-29 04:11:59,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:11:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:11:59,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:59,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:59,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:11:59,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:00,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:02,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:02,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:02,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:04,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:04,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 04:12:04,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 04:12:04,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-29 04:12:04,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:04,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:04,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 04:12:04,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:12:04,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-29 04:12:04,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:04,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:12:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:04,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:04,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:04,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:12:04,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:04,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:04,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:04,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:04,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:04,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:04,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:04,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:04,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 04:12:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:04,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:04,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:04,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:04,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:04,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:04,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:04,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:04,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:04,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:04,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:04,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:04,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:12:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:04,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:04,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:04,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:04,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:04,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:04,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:04,791 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:04,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:04,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:04,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:04,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:04,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:12:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:04,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:04,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:04,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:04,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:04,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:04,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:04,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:04,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:04,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:04,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:04,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:04,818 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 6 proven. 60 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-29 04:12:04,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450332940] [2020-10-29 04:12:04,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:12:04,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 04:12:04,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382376933] [2020-10-29 04:12:04,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 04:12:04,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:12:04,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 04:12:04,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2020-10-29 04:12:04,821 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand 15 states. [2020-10-29 04:12:06,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:06,353 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2020-10-29 04:12:06,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 04:12:06,354 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 59 [2020-10-29 04:12:06,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:06,356 INFO L225 Difference]: With dead ends: 82 [2020-10-29 04:12:06,356 INFO L226 Difference]: Without dead ends: 79 [2020-10-29 04:12:06,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 11 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=227, Invalid=1033, Unknown=0, NotChecked=0, Total=1260 [2020-10-29 04:12:06,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-10-29 04:12:06,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 70. [2020-10-29 04:12:06,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-29 04:12:06,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2020-10-29 04:12:06,369 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 59 [2020-10-29 04:12:06,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:12:06,370 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2020-10-29 04:12:06,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 04:12:06,370 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2020-10-29 04:12:06,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-29 04:12:06,374 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:12:06,374 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:12:06,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 04:12:06,374 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:12:06,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:12:06,375 INFO L82 PathProgramCache]: Analyzing trace with hash -549924690, now seen corresponding path program 8 times [2020-10-29 04:12:06,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:12:06,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512929071] [2020-10-29 04:12:06,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:12:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:06,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:06,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:06,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:06,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:08,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:09,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:09,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 04:12:11,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 04:12:11,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 04:12:11,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 04:12:11,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:12:11,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-29 04:12:11,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:12:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:12:11,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:11,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:11,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:11,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 04:12:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:11,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:11,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:11,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:11,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:12:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:11,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:11,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:11,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:11,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:12:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:11,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:11,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:11,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:12:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:11,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:11,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:11,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:11,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:11,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:11,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:11,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:11,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:11,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:11,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:11,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:11,964 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 8 proven. 77 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-29 04:12:11,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512929071] [2020-10-29 04:12:11,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:12:11,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 04:12:11,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870748973] [2020-10-29 04:12:11,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 04:12:11,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:12:11,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 04:12:11,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2020-10-29 04:12:11,966 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand 16 states. [2020-10-29 04:12:14,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:14,037 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2020-10-29 04:12:14,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-29 04:12:14,037 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 67 [2020-10-29 04:12:14,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:14,040 INFO L225 Difference]: With dead ends: 98 [2020-10-29 04:12:14,040 INFO L226 Difference]: Without dead ends: 95 [2020-10-29 04:12:14,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 13 SyntacticMatches, 7 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=309, Invalid=1497, Unknown=0, NotChecked=0, Total=1806 [2020-10-29 04:12:14,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-29 04:12:14,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 78. [2020-10-29 04:12:14,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-29 04:12:14,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 82 transitions. [2020-10-29 04:12:14,060 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 82 transitions. Word has length 67 [2020-10-29 04:12:14,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:12:14,060 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 82 transitions. [2020-10-29 04:12:14,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 04:12:14,061 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 82 transitions. [2020-10-29 04:12:14,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-29 04:12:14,061 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:12:14,062 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:12:14,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 04:12:14,062 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:12:14,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:12:14,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1345505111, now seen corresponding path program 9 times [2020-10-29 04:12:14,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:12:14,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2049260704] [2020-10-29 04:12:14,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:12:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:14,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:14,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:14,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:14,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 04:12:14,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:12:14,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 763 [2020-10-29 04:12:14,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:14,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:14,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 04:12:14,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:12:14,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 04:12:14,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:14,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:12:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:14,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:14,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:14,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:12:14,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:14,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:14,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:14,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:14,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:14,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:14,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 04:12:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:14,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:14,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:14,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:14,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:14,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:14,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:14,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:14,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:14,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:14,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:14,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:14,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:12:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:14,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:14,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:14,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:14,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:14,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:14,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:14,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:14,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:14,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:14,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:14,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:14,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:12:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:14,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:14,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:14,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:14,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:14,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:14,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:14,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:14,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:14,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:14,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:14,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:14,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:12:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:14,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:14,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:14,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:14,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:14,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:14,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:14,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:14,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:14,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:14,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:14,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:14,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 04:12:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:14,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:14,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:14,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:14,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:14,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:14,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:14,998 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:14,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:14,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:15,009 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 60 proven. 45 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-29 04:12:15,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2049260704] [2020-10-29 04:12:15,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:12:15,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 04:12:15,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328526155] [2020-10-29 04:12:15,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 04:12:15,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:12:15,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 04:12:15,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:12:15,012 INFO L87 Difference]: Start difference. First operand 78 states and 82 transitions. Second operand 11 states. [2020-10-29 04:12:15,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:15,461 INFO L93 Difference]: Finished difference Result 159 states and 169 transitions. [2020-10-29 04:12:15,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 04:12:15,461 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 75 [2020-10-29 04:12:15,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:15,463 INFO L225 Difference]: With dead ends: 159 [2020-10-29 04:12:15,463 INFO L226 Difference]: Without dead ends: 84 [2020-10-29 04:12:15,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:12:15,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-29 04:12:15,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2020-10-29 04:12:15,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-10-29 04:12:15,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 84 transitions. [2020-10-29 04:12:15,477 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 84 transitions. Word has length 75 [2020-10-29 04:12:15,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:12:15,478 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 84 transitions. [2020-10-29 04:12:15,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 04:12:15,478 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2020-10-29 04:12:15,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-29 04:12:15,479 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:12:15,479 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:12:15,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 04:12:15,479 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:12:15,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:12:15,480 INFO L82 PathProgramCache]: Analyzing trace with hash 510959484, now seen corresponding path program 10 times [2020-10-29 04:12:15,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:12:15,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803706783] [2020-10-29 04:12:15,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:12:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:15,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:15,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:15,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:15,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:16,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:17,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:19,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:19,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:20,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:20,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 04:12:20,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 04:12:20,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 04:12:20,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:20,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:20,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-29 04:12:20,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:12:20,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-29 04:12:20,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:21,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:12:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:21,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:21,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:21,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:12:21,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:21,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:12:21,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:21,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:21,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:21,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:21,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:21,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:21,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 04:12:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:21,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:21,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:21,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:21,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:21,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:21,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:21,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:21,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:21,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:21,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:21,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:21,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 04:12:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:21,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:21,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:21,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:21,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:21,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:21,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:21,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:21,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:21,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:21,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:21,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 04:12:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:21,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:21,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:21,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:21,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:21,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:21,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:21,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:21,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:21,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:21,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:21,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:21,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 04:12:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:21,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:21,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:21,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:21,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:21,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:21,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:21,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:21,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:21,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:21,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:12:21,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:21,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:21,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:21,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:21,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:21,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:21,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:21,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:21,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:21,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:21,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:21,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:21,284 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 50 proven. 76 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-29 04:12:21,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803706783] [2020-10-29 04:12:21,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:12:21,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 04:12:21,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146924313] [2020-10-29 04:12:21,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 04:12:21,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:12:21,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 04:12:21,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-10-29 04:12:21,287 INFO L87 Difference]: Start difference. First operand 82 states and 84 transitions. Second operand 17 states. [2020-10-29 04:12:23,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:23,000 INFO L93 Difference]: Finished difference Result 124 states and 134 transitions. [2020-10-29 04:12:23,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-29 04:12:23,001 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 79 [2020-10-29 04:12:23,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:23,002 INFO L225 Difference]: With dead ends: 124 [2020-10-29 04:12:23,003 INFO L226 Difference]: Without dead ends: 92 [2020-10-29 04:12:23,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 15 SyntacticMatches, 11 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=186, Invalid=744, Unknown=0, NotChecked=0, Total=930 [2020-10-29 04:12:23,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-10-29 04:12:23,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2020-10-29 04:12:23,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-29 04:12:23,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 94 transitions. [2020-10-29 04:12:23,018 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 94 transitions. Word has length 79 [2020-10-29 04:12:23,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:12:23,019 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 94 transitions. [2020-10-29 04:12:23,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 04:12:23,019 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 94 transitions. [2020-10-29 04:12:23,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-29 04:12:23,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:12:23,020 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:12:23,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 04:12:23,020 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:12:23,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:12:23,021 INFO L82 PathProgramCache]: Analyzing trace with hash -904667871, now seen corresponding path program 11 times [2020-10-29 04:12:23,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:12:23,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406983469] [2020-10-29 04:12:23,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:12:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:23,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:23,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:23,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:23,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:23,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:23,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:25,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:28,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:28,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-29 04:12:28,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 04:12:28,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-29 04:12:28,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:28,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-29 04:12:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:12:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-29 04:12:28,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:28,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:12:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:28,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:28,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:28,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:12:28,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:28,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:12:28,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:28,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:28,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:28,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:28,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:28,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:12:28,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:12:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:28,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:28,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:28,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:28,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:28,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:12:28,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:28,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:28,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:28,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:28,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:28,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:12:28,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:12:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:28,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:28,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:28,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:28,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:28,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 04:12:28,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:28,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:28,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:28,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:28,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:28,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:28,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:12:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:28,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:28,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:28,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:28,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:28,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:28,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:28,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:28,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:28,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:28,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:28,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:28,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 04:12:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:28,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:28,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:28,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:28,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:28,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:12:28,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:28,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:28,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:28,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:28,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:12:28,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:12:28,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:28,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:28,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:28,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:28,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:28,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:12:28,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:28,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:28,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:28,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:28,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:28,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:12:28,940 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 10 proven. 138 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-10-29 04:12:28,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406983469] [2020-10-29 04:12:28,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:12:28,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 04:12:28,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115450801] [2020-10-29 04:12:28,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 04:12:28,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:12:28,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 04:12:28,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2020-10-29 04:12:28,942 INFO L87 Difference]: Start difference. First operand 90 states and 94 transitions. Second operand 17 states. [2020-10-29 04:12:31,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:31,677 INFO L93 Difference]: Finished difference Result 104 states and 109 transitions. [2020-10-29 04:12:31,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-29 04:12:31,678 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 83 [2020-10-29 04:12:31,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:31,680 INFO L225 Difference]: With dead ends: 104 [2020-10-29 04:12:31,680 INFO L226 Difference]: Without dead ends: 101 [2020-10-29 04:12:31,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 15 SyntacticMatches, 10 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=357, Invalid=1713, Unknown=0, NotChecked=0, Total=2070 [2020-10-29 04:12:31,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-10-29 04:12:31,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2020-10-29 04:12:31,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-29 04:12:31,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 102 transitions. [2020-10-29 04:12:31,702 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 102 transitions. Word has length 83 [2020-10-29 04:12:31,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:12:31,703 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 102 transitions. [2020-10-29 04:12:31,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 04:12:31,703 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 102 transitions. [2020-10-29 04:12:31,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-29 04:12:31,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:12:31,705 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:12:31,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 04:12:31,706 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:12:31,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:12:31,706 INFO L82 PathProgramCache]: Analyzing trace with hash -20278, now seen corresponding path program 12 times [2020-10-29 04:12:31,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:12:31,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [98353367] [2020-10-29 04:12:31,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:12:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:31,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:31,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:32,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:32,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:32,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:34,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:36,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:36,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 04:12:36,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 04:12:36,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 04:12:36,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:36,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-29 04:12:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:12:36,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-10-29 04:12:36,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:37,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:12:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:37,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:37,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:37,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:12:37,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:37,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:37,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:37,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:37,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:37,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:37,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:37,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:37,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 04:12:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:37,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:37,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:37,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:37,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:37,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:12:37,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:37,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:37,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:37,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:37,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:37,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:37,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:12:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:37,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:37,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:37,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:37,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:37,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:12:37,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:37,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:37,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:37,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:12:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:37,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:37,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:37,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:37,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:37,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:37,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:37,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:37,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:37,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:37,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:37,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:37,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 04:12:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:37,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:37,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:37,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:37,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:37,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:12:37,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:37,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:37,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:37,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:37,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:37,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:37,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:12:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:37,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:37,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:37,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:37,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:37,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:37,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:37,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:37,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:37,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:37,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:37,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:37,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:12:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:37,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:37,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:37,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:37,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:37,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:37,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:37,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:37,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:37,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:37,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:37,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:37,894 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 52 proven. 123 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 04:12:37,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [98353367] [2020-10-29 04:12:37,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:12:37,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:12:37,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859234603] [2020-10-29 04:12:37,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:12:37,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:12:37,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:12:37,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:12:37,899 INFO L87 Difference]: Start difference. First operand 98 states and 102 transitions. Second operand 19 states. [2020-10-29 04:12:39,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:39,774 INFO L93 Difference]: Finished difference Result 151 states and 165 transitions. [2020-10-29 04:12:39,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 04:12:39,775 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 91 [2020-10-29 04:12:39,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:39,777 INFO L225 Difference]: With dead ends: 151 [2020-10-29 04:12:39,777 INFO L226 Difference]: Without dead ends: 115 [2020-10-29 04:12:39,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 17 SyntacticMatches, 13 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=221, Invalid=835, Unknown=0, NotChecked=0, Total=1056 [2020-10-29 04:12:39,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-29 04:12:39,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 98. [2020-10-29 04:12:39,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-29 04:12:39,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 102 transitions. [2020-10-29 04:12:39,791 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 102 transitions. Word has length 91 [2020-10-29 04:12:39,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:12:39,791 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 102 transitions. [2020-10-29 04:12:39,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:12:39,791 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 102 transitions. [2020-10-29 04:12:39,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-29 04:12:39,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:12:39,794 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:12:39,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 04:12:39,794 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:12:39,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:12:39,795 INFO L82 PathProgramCache]: Analyzing trace with hash 673095407, now seen corresponding path program 13 times [2020-10-29 04:12:39,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:12:39,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1614367744] [2020-10-29 04:12:39,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:12:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:39,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:40,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:40,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:40,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:40,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:41,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:43,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:43,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:43,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:44,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:44,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 04:12:44,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 04:12:44,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 04:12:44,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:44,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:44,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-29 04:12:44,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:12:44,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-29 04:12:44,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:45,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:12:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:45,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:45,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:45,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:12:45,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:45,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:45,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:45,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:45,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:45,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:45,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:45,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:45,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 04:12:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:45,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:45,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:45,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:45,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:45,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:45,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:45,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:45,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:45,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:45,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:45,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:45,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 04:12:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:45,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:45,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:45,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:45,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:45,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:45,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:45,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:45,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:45,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:45,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:45,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:45,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 04:12:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:45,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:45,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:45,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:45,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:45,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:45,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:45,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:45,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:45,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:12:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:45,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:45,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:45,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:45,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:45,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:45,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:45,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:45,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:45,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:45,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:45,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:45,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:12:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:45,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:45,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:45,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:45,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:45,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:45,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:45,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:45,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:45,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:45,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 04:12:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:45,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:45,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:45,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:45,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:45,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:12:45,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:45,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:45,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:45,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 12 proven. 189 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-29 04:12:45,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1614367744] [2020-10-29 04:12:45,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:12:45,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 04:12:45,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070684366] [2020-10-29 04:12:45,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 04:12:45,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:12:45,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 04:12:45,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2020-10-29 04:12:45,610 INFO L87 Difference]: Start difference. First operand 98 states and 102 transitions. Second operand 18 states. [2020-10-29 04:12:49,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:49,130 INFO L93 Difference]: Finished difference Result 118 states and 124 transitions. [2020-10-29 04:12:49,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-29 04:12:49,131 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 95 [2020-10-29 04:12:49,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:49,133 INFO L225 Difference]: With dead ends: 118 [2020-10-29 04:12:49,133 INFO L226 Difference]: Without dead ends: 115 [2020-10-29 04:12:49,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 17 SyntacticMatches, 13 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=454, Invalid=2198, Unknown=0, NotChecked=0, Total=2652 [2020-10-29 04:12:49,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-29 04:12:49,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 106. [2020-10-29 04:12:49,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-29 04:12:49,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 110 transitions. [2020-10-29 04:12:49,148 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 110 transitions. Word has length 95 [2020-10-29 04:12:49,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:12:49,148 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 110 transitions. [2020-10-29 04:12:49,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 04:12:49,148 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 110 transitions. [2020-10-29 04:12:49,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-29 04:12:49,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:12:49,149 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:12:49,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 04:12:49,149 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:12:49,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:12:49,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1697987432, now seen corresponding path program 14 times [2020-10-29 04:12:49,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:12:49,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072242303] [2020-10-29 04:12:49,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:12:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:49,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:49,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:49,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:49,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:50,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:50,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:50,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:54,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:54,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-29 04:12:54,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 04:12:54,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 04:12:54,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:54,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:54,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-29 04:12:54,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:12:54,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 04:12:54,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:55,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:12:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:55,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:55,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:55,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:12:55,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:55,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:55,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:55,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:12:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:12:55,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:55,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 04:12:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:55,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:55,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:55,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:55,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:55,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:55,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:55,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:55,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:55,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:55,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:55,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:55,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 04:12:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:55,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:55,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:55,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:55,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:55,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:55,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:55,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:55,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:55,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:55,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:55,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:55,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 04:12:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:55,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:55,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:55,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:55,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:55,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:55,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:55,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:55,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:55,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:55,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:55,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:55,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:12:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:55,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:55,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:55,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:55,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:55,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:55,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:55,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:55,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:55,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:55,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:55,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:55,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:12:55,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:55,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:55,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:55,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:55,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:55,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:12:55,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:55,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:55,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:55,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:55,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:55,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:55,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 04:12:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:55,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:55,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:55,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:55,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:55,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:55,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:55,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:55,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:55,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:55,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:55,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:55,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:12:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:55,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:55,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:12:55,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:12:55,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:12:55,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:12:55,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:12:55,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:12:55,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:12:55,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:12:55,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:12:55,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:12:55,232 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 98 proven. 134 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-29 04:12:55,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072242303] [2020-10-29 04:12:55,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:12:55,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:12:55,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183635631] [2020-10-29 04:12:55,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:12:55,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:12:55,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:12:55,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:12:55,234 INFO L87 Difference]: Start difference. First operand 106 states and 110 transitions. Second operand 19 states. [2020-10-29 04:12:57,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:12:57,249 INFO L93 Difference]: Finished difference Result 171 states and 188 transitions. [2020-10-29 04:12:57,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-29 04:12:57,250 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 103 [2020-10-29 04:12:57,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:12:57,252 INFO L225 Difference]: With dead ends: 171 [2020-10-29 04:12:57,252 INFO L226 Difference]: Without dead ends: 131 [2020-10-29 04:12:57,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 18 SyntacticMatches, 17 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2020-10-29 04:12:57,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-29 04:12:57,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 110. [2020-10-29 04:12:57,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-29 04:12:57,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 115 transitions. [2020-10-29 04:12:57,268 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 115 transitions. Word has length 103 [2020-10-29 04:12:57,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:12:57,268 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 115 transitions. [2020-10-29 04:12:57,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:12:57,269 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 115 transitions. [2020-10-29 04:12:57,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-29 04:12:57,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:12:57,270 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:12:57,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 04:12:57,270 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:12:57,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:12:57,271 INFO L82 PathProgramCache]: Analyzing trace with hash -823876803, now seen corresponding path program 15 times [2020-10-29 04:12:57,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:12:57,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385461917] [2020-10-29 04:12:57,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:12:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:12:57,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:57,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:57,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:57,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:57,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:12:59,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:02,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:02,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:02,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-29 04:13:02,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 04:13:02,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 04:13:02,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:02,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:02,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-29 04:13:02,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:13:02,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-29 04:13:02,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:03,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:13:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:03,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:03,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:03,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:13:03,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:03,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:03,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:03,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:03,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:03,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:03,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:03,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:03,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:13:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:03,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:03,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:03,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:03,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:03,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:03,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:03,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:03,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:03,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:03,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:13:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:03,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:03,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:03,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:03,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:03,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:03,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:03,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:03,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:03,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:03,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:03,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:03,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 04:13:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:03,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:03,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:03,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:03,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:03,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:03,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:03,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:03,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:03,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:03,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:03,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:03,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:13:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:03,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:03,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:03,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:03,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:03,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:03,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:03,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:03,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:03,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:03,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:13:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:03,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:03,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:03,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:03,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:03,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:03,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:03,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:03,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:03,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:03,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 04:13:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:03,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:03,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:03,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:03,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:03,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:03,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:03,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:03,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:03,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:03,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:03,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:03,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-29 04:13:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:03,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:03,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:03,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:03,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:03,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:03,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:03,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:03,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:03,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:03,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:03,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:03,227 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 14 proven. 248 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-29 04:13:03,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [385461917] [2020-10-29 04:13:03,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:13:03,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 04:13:03,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236469514] [2020-10-29 04:13:03,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 04:13:03,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:13:03,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 04:13:03,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2020-10-29 04:13:03,229 INFO L87 Difference]: Start difference. First operand 110 states and 115 transitions. Second operand 19 states. [2020-10-29 04:13:05,442 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-29 04:13:06,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:13:06,980 INFO L93 Difference]: Finished difference Result 132 states and 139 transitions. [2020-10-29 04:13:06,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-29 04:13:06,981 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 107 [2020-10-29 04:13:06,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:13:06,983 INFO L225 Difference]: With dead ends: 132 [2020-10-29 04:13:06,983 INFO L226 Difference]: Without dead ends: 129 [2020-10-29 04:13:06,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 19 SyntacticMatches, 16 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=559, Invalid=2633, Unknown=0, NotChecked=0, Total=3192 [2020-10-29 04:13:06,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-10-29 04:13:06,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 118. [2020-10-29 04:13:06,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-29 04:13:06,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 123 transitions. [2020-10-29 04:13:06,999 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 123 transitions. Word has length 107 [2020-10-29 04:13:06,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:13:06,999 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 123 transitions. [2020-10-29 04:13:06,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 04:13:06,999 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 123 transitions. [2020-10-29 04:13:07,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-29 04:13:07,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:13:07,001 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:13:07,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 04:13:07,001 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:13:07,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:13:07,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1512479462, now seen corresponding path program 16 times [2020-10-29 04:13:07,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:13:07,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1070347004] [2020-10-29 04:13:07,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:13:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:07,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:07,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:07,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:07,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:08,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:08,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:09,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:12,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:12,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 04:13:12,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 04:13:12,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 04:13:12,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:12,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-29 04:13:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:13:12,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 04:13:12,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:13,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:13:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:13,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:13,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:13,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:13:13,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:13,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:13,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:13,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:13,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:13,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:13,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:13,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:13,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 04:13:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:13,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:13,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:13,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:13,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:13,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:13:13,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:13,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:13,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:13,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:13,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:13,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:13,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:13:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:13,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:13,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:13,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:13,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:13,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:13:13,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:13,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:13,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:13,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:13,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:13,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:13,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 04:13:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:13,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:13,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:13,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:13,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:13,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:13,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:13,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:13,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:13,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:13,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:13,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:13,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:13:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:13,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:13,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:13,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:13,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:13,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:13,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:13,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:13,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:13,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:13,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:13,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:13,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:13:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:13,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:13,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:13,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:13,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:13,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:13,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:13,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:13,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:13,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:13,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:13,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:13,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 04:13:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:13,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:13,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:13,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:13,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:13,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:13:13,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:13,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:13,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:13,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:13,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:13,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:13,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-29 04:13:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:13,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:13,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:13,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:13,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:13,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:13,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:13,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:13,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:13,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:13,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:13,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:13,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:13:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:13,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:13,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:13,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:13,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:13,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:13,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:13,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:13,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:13,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:13,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:13,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:13,401 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 128 proven. 169 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-10-29 04:13:13,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1070347004] [2020-10-29 04:13:13,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:13:13,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 04:13:13,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920295832] [2020-10-29 04:13:13,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 04:13:13,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:13:13,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 04:13:13,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-29 04:13:13,403 INFO L87 Difference]: Start difference. First operand 118 states and 123 transitions. Second operand 21 states. [2020-10-29 04:13:14,301 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-10-29 04:13:16,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:13:16,092 INFO L93 Difference]: Finished difference Result 191 states and 211 transitions. [2020-10-29 04:13:16,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-29 04:13:16,093 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 115 [2020-10-29 04:13:16,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:13:16,096 INFO L225 Difference]: With dead ends: 191 [2020-10-29 04:13:16,096 INFO L226 Difference]: Without dead ends: 147 [2020-10-29 04:13:16,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 21 SyntacticMatches, 19 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=375, Invalid=1347, Unknown=0, NotChecked=0, Total=1722 [2020-10-29 04:13:16,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-29 04:13:16,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 122. [2020-10-29 04:13:16,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-29 04:13:16,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 128 transitions. [2020-10-29 04:13:16,111 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 128 transitions. Word has length 115 [2020-10-29 04:13:16,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:13:16,111 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 128 transitions. [2020-10-29 04:13:16,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 04:13:16,111 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 128 transitions. [2020-10-29 04:13:16,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-29 04:13:16,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:13:16,112 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:13:16,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 04:13:16,113 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:13:16,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:13:16,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1965643253, now seen corresponding path program 17 times [2020-10-29 04:13:16,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:13:16,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338510829] [2020-10-29 04:13:16,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:13:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:16,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:16,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:16,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:16,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:16,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:18,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:21,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:21,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 04:13:21,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 04:13:21,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 04:13:21,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:21,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:21,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-29 04:13:21,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:13:21,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-29 04:13:21,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:22,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:13:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:22,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:22,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:22,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:13:22,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:22,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:22,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:22,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:22,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:22,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 04:13:22,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:22,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:22,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:22,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:22,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:22,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:22,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:22,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:22,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:22,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:22,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:22,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:22,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 04:13:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:22,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:22,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:22,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:22,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:22,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:22,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:22,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:22,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:22,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:22,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:22,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:22,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:13:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:22,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:22,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:22,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:22,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:22,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:22,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:22,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:22,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:22,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:22,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:22,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:22,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:13:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:22,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:22,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:22,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:22,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:22,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:22,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:22,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:22,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:22,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:22,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:22,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:22,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 04:13:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:22,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:22,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:22,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:22,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:22,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:22,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:22,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:22,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:22,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:22,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:22,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:22,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:13:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:22,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:22,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:22,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:22,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:22,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:22,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:22,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:22,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:22,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:22,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:22,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:22,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-29 04:13:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:22,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:22,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:22,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:22,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:22,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:22,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:22,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:22,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:22,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:22,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 04:13:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:22,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:22,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:22,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:22,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:22,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 04:13:22,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:22,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:22,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:13:22,291 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 16 proven. 315 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-29 04:13:22,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [338510829] [2020-10-29 04:13:22,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:13:22,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-29 04:13:22,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439515115] [2020-10-29 04:13:22,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 04:13:22,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:13:22,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 04:13:22,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=342, Unknown=0, NotChecked=0, Total=380 [2020-10-29 04:13:22,294 INFO L87 Difference]: Start difference. First operand 122 states and 128 transitions. Second operand 20 states. [2020-10-29 04:13:26,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:13:26,979 INFO L93 Difference]: Finished difference Result 146 states and 154 transitions. [2020-10-29 04:13:26,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2020-10-29 04:13:26,980 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 119 [2020-10-29 04:13:26,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:13:26,982 INFO L225 Difference]: With dead ends: 146 [2020-10-29 04:13:26,982 INFO L226 Difference]: Without dead ends: 143 [2020-10-29 04:13:26,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 21 SyntacticMatches, 19 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=687, Invalid=3345, Unknown=0, NotChecked=0, Total=4032 [2020-10-29 04:13:26,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-29 04:13:26,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 130. [2020-10-29 04:13:26,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-29 04:13:26,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 136 transitions. [2020-10-29 04:13:26,998 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 136 transitions. Word has length 119 [2020-10-29 04:13:26,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:13:26,999 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 136 transitions. [2020-10-29 04:13:26,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 04:13:26,999 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 136 transitions. [2020-10-29 04:13:27,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-29 04:13:27,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:13:27,000 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:13:27,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 04:13:27,001 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:13:27,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:13:27,001 INFO L82 PathProgramCache]: Analyzing trace with hash -305925196, now seen corresponding path program 18 times [2020-10-29 04:13:27,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:13:27,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [346681043] [2020-10-29 04:13:27,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:13:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:27,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:27,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:27,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:27,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:27,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:28,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:29,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:32,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:32,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-29 04:13:32,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 04:13:32,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 04:13:32,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:32,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:32,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-29 04:13:32,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:13:32,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 04:13:32,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:33,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:13:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:33,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:33,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:33,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:13:33,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:33,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:33,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:33,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:33,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:33,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:33,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:33,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:33,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 04:13:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:33,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:33,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:33,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:33,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:33,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:33,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:33,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:33,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:33,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:33,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:33,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:33,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 04:13:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:33,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:33,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:33,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:33,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:33,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:33,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:33,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:33,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:33,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:33,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:33,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:33,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:13:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:33,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:33,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:33,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:33,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:33,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:33,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:33,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:33,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:33,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:33,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:13:33,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:33,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:33,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:33,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:33,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:33,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:33,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:33,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:33,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:33,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:33,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:33,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:33,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 04:13:33,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:33,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:33,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:33,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:33,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:33,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:13:33,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:33,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:33,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:33,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:33,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:33,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:33,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:13:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:33,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:33,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:33,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:33,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:33,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:33,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:33,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:33,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:33,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:33,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:33,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:33,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-29 04:13:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:33,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:33,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:33,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:33,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:33,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:33,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:33,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:33,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:33,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:33,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:33,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:33,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 04:13:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:33,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:33,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:33,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:33,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:33,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:33,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:33,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:33,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:33,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:33,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-29 04:13:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:33,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:33,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:33,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:33,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:33,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:33,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:33,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:33,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:33,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:33,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:33,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:33,601 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 162 proven. 208 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-10-29 04:13:33,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [346681043] [2020-10-29 04:13:33,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:13:33,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 04:13:33,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056908869] [2020-10-29 04:13:33,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 04:13:33,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:13:33,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 04:13:33,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-10-29 04:13:33,603 INFO L87 Difference]: Start difference. First operand 130 states and 136 transitions. Second operand 21 states. [2020-10-29 04:13:36,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:13:36,258 INFO L93 Difference]: Finished difference Result 211 states and 234 transitions. [2020-10-29 04:13:36,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-29 04:13:36,263 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 127 [2020-10-29 04:13:36,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:13:36,264 INFO L225 Difference]: With dead ends: 211 [2020-10-29 04:13:36,265 INFO L226 Difference]: Without dead ends: 163 [2020-10-29 04:13:36,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 22 SyntacticMatches, 23 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=390, Invalid=1332, Unknown=0, NotChecked=0, Total=1722 [2020-10-29 04:13:36,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-10-29 04:13:36,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 134. [2020-10-29 04:13:36,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-29 04:13:36,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 141 transitions. [2020-10-29 04:13:36,283 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 141 transitions. Word has length 127 [2020-10-29 04:13:36,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:13:36,284 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 141 transitions. [2020-10-29 04:13:36,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 04:13:36,284 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 141 transitions. [2020-10-29 04:13:36,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-29 04:13:36,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:13:36,285 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:13:36,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-29 04:13:36,286 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:13:36,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:13:36,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1127910567, now seen corresponding path program 19 times [2020-10-29 04:13:36,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:13:36,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1559411287] [2020-10-29 04:13:36,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:13:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:36,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:36,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:37,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:38,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:41,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:41,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-29 04:13:41,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 04:13:41,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 04:13:41,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:41,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:41,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-29 04:13:41,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:13:41,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-29 04:13:41,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:42,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:13:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:42,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:42,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:42,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:13:42,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:42,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:42,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:42,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:42,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:42,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:42,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:42,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:42,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:13:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:42,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:42,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:42,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:42,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:42,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:42,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:42,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:42,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:42,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:42,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:42,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:42,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 04:13:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:42,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:42,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:42,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:42,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:42,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:42,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:42,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:42,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:42,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:42,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:13:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:42,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:42,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:42,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:42,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:42,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:42,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:42,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:42,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:42,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:42,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:42,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:42,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:13:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:42,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:42,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:42,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:42,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:42,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:42,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:42,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:42,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:42,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:42,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:42,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:42,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 04:13:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:42,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:42,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:42,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:42,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:42,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:42,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:42,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:42,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:42,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:42,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-29 04:13:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:42,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:42,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:42,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:42,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:42,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:42,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:42,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:42,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:42,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:42,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:42,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:13:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:42,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:42,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:42,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:42,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:42,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:42,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:42,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:42,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:42,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-29 04:13:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:42,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:42,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:42,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:42,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:42,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:42,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:42,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:42,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:42,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 04:13:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:42,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:42,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:42,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:42,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:42,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:42,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:42,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:42,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:42,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:42,694 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 18 proven. 390 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-10-29 04:13:42,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1559411287] [2020-10-29 04:13:42,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:13:42,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 04:13:42,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283134496] [2020-10-29 04:13:42,696 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 04:13:42,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:13:42,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 04:13:42,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=380, Unknown=0, NotChecked=0, Total=420 [2020-10-29 04:13:42,697 INFO L87 Difference]: Start difference. First operand 134 states and 141 transitions. Second operand 21 states. [2020-10-29 04:13:45,464 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-29 04:13:45,675 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2020-10-29 04:13:46,221 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-10-29 04:13:46,534 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-10-29 04:13:46,737 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-10-29 04:13:46,936 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2020-10-29 04:13:49,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:13:49,153 INFO L93 Difference]: Finished difference Result 160 states and 169 transitions. [2020-10-29 04:13:49,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2020-10-29 04:13:49,154 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 131 [2020-10-29 04:13:49,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:13:49,157 INFO L225 Difference]: With dead ends: 160 [2020-10-29 04:13:49,157 INFO L226 Difference]: Without dead ends: 157 [2020-10-29 04:13:49,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 23 SyntacticMatches, 22 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 851 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=823, Invalid=4007, Unknown=0, NotChecked=0, Total=4830 [2020-10-29 04:13:49,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-29 04:13:49,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 142. [2020-10-29 04:13:49,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-10-29 04:13:49,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 149 transitions. [2020-10-29 04:13:49,176 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 149 transitions. Word has length 131 [2020-10-29 04:13:49,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:13:49,177 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 149 transitions. [2020-10-29 04:13:49,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 04:13:49,177 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 149 transitions. [2020-10-29 04:13:49,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-29 04:13:49,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:13:49,178 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:13:49,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-29 04:13:49,179 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:13:49,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:13:49,179 INFO L82 PathProgramCache]: Analyzing trace with hash 968068866, now seen corresponding path program 20 times [2020-10-29 04:13:49,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:13:49,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1550912184] [2020-10-29 04:13:49,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:13:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:49,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:49,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:50,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:50,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:50,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:50,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:54,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:54,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-29 04:13:54,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 04:13:54,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 04:13:54,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:54,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-29 04:13:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:13:54,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-10-29 04:13:54,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:56,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:13:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:56,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:56,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:56,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:13:56,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:56,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:56,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:56,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:56,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:13:56,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:56,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:13:56,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:56,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:13:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:56,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:56,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:56,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:56,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:56,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:56,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:56,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:56,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:56,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:56,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:56,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:56,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 04:13:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:56,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:56,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:56,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:56,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:56,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:56,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:56,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:56,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:56,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:13:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:56,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:56,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:56,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:56,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:56,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:13:56,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:56,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:56,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:56,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:56,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:56,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:56,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:13:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:56,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:56,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:56,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:56,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:56,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:56,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:56,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:56,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:56,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:56,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:56,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:56,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 04:13:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:56,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:56,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:56,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:56,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:56,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:56,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:56,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:56,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:56,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:56,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-29 04:13:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:56,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:56,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:56,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:56,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:56,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:56,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:56,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:56,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:56,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:56,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:56,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:56,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:13:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:56,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:56,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:56,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:56,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:56,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:56,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:56,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:56,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:56,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:56,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:56,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:56,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-29 04:13:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:56,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:56,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:56,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:56,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:56,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:56,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:56,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:56,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:56,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:56,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:56,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:56,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 04:13:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:56,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:56,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:56,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:56,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:56,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:13:56,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:56,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:56,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:56,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:56,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:13:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:56,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:56,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:13:56,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:13:56,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:13:56,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:13:56,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:13:56,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:13:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:13:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:13:56,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:13:56,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:13:56,174 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 164 proven. 287 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-10-29 04:13:56,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1550912184] [2020-10-29 04:13:56,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:13:56,175 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-29 04:13:56,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582978514] [2020-10-29 04:13:56,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-29 04:13:56,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:13:56,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-29 04:13:56,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=660, Unknown=0, NotChecked=0, Total=930 [2020-10-29 04:13:56,176 INFO L87 Difference]: Start difference. First operand 142 states and 149 transitions. Second operand 31 states. [2020-10-29 04:13:59,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:13:59,347 INFO L93 Difference]: Finished difference Result 244 states and 273 transitions. [2020-10-29 04:13:59,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-29 04:13:59,348 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 139 [2020-10-29 04:13:59,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:13:59,351 INFO L225 Difference]: With dead ends: 244 [2020-10-29 04:13:59,351 INFO L226 Difference]: Without dead ends: 192 [2020-10-29 04:13:59,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 23 SyntacticMatches, 18 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 893 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=725, Invalid=2467, Unknown=0, NotChecked=0, Total=3192 [2020-10-29 04:13:59,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-29 04:13:59,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 154. [2020-10-29 04:13:59,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-29 04:13:59,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 164 transitions. [2020-10-29 04:13:59,375 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 164 transitions. Word has length 139 [2020-10-29 04:13:59,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:13:59,376 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 164 transitions. [2020-10-29 04:13:59,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-29 04:13:59,376 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 164 transitions. [2020-10-29 04:13:59,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-29 04:13:59,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:13:59,378 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:13:59,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-29 04:13:59,378 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:13:59,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:13:59,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1239531303, now seen corresponding path program 21 times [2020-10-29 04:13:59,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:13:59,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1108274663] [2020-10-29 04:13:59,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:13:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:13:59,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:13:59,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:00,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:00,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:00,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:00,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:04,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:04,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-29 04:14:04,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 04:14:04,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 04:14:04,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:04,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:04,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-29 04:14:04,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:14:04,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-29 04:14:04,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:05,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:05,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:05,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:05,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:05,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:05,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:05,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:05,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:05,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:05,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:05,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:05,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:05,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 04:14:05,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:05,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:05,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:05,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:05,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:05,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:05,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:05,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:05,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:05,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:05,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:05,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:05,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:14:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:05,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:05,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:05,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:05,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:05,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:05,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:05,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:05,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:05,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:05,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:05,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:05,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:14:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:05,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:05,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:05,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:05,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:05,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:05,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:05,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:05,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:05,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:05,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:05,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:05,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 04:14:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:05,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:05,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:05,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:05,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:05,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:05,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:05,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:05,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:05,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:05,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:05,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:05,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:14:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:05,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:05,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:05,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:05,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:05,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:05,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:05,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:05,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:05,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:05,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:05,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:05,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-29 04:14:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:05,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:05,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:05,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:05,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:05,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:05,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:05,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:05,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:05,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:05,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:05,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:05,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 04:14:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:05,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:05,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:05,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:05,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:05,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:05,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:05,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:05,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:05,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:05,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:05,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:05,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-29 04:14:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:05,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:05,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:05,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:05,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:05,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:05,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:05,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:05,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:05,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:05,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:05,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:05,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-29 04:14:05,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:05,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:05,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:05,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:05,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:05,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:05,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:05,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:05,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:05,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:05,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:05,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:05,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-29 04:14:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:05,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:05,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:05,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:05,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:05,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:05,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:05,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:05,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:06,038 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 20 proven. 473 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2020-10-29 04:14:06,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1108274663] [2020-10-29 04:14:06,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:06,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 04:14:06,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330985120] [2020-10-29 04:14:06,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 04:14:06,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:06,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 04:14:06,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=420, Unknown=0, NotChecked=0, Total=462 [2020-10-29 04:14:06,040 INFO L87 Difference]: Start difference. First operand 154 states and 164 transitions. Second operand 22 states. [2020-10-29 04:14:09,521 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-10-29 04:14:09,749 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-10-29 04:14:10,285 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-10-29 04:14:10,514 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2020-10-29 04:14:10,673 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-10-29 04:14:13,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:13,067 INFO L93 Difference]: Finished difference Result 183 states and 195 transitions. [2020-10-29 04:14:13,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2020-10-29 04:14:13,068 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 143 [2020-10-29 04:14:13,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:13,073 INFO L225 Difference]: With dead ends: 183 [2020-10-29 04:14:13,074 INFO L226 Difference]: Without dead ends: 180 [2020-10-29 04:14:13,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 25 SyntacticMatches, 25 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 978 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=967, Invalid=4583, Unknown=0, NotChecked=0, Total=5550 [2020-10-29 04:14:13,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-29 04:14:13,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 162. [2020-10-29 04:14:13,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-29 04:14:13,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 172 transitions. [2020-10-29 04:14:13,097 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 172 transitions. Word has length 143 [2020-10-29 04:14:13,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:13,097 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 172 transitions. [2020-10-29 04:14:13,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 04:14:13,098 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 172 transitions. [2020-10-29 04:14:13,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-10-29 04:14:13,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:13,099 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:13,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-29 04:14:13,100 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:13,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:13,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1181101264, now seen corresponding path program 22 times [2020-10-29 04:14:13,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:13,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1258533090] [2020-10-29 04:14:13,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:13,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:13,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:13,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:14,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:14,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:14,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:14,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:15,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:18,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:18,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-29 04:14:18,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 04:14:18,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 04:14:18,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:18,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:18,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-29 04:14:18,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:14:18,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-29 04:14:18,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:20,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:20,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:20,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:20,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 04:14:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:14:20,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:14:20,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:14:20,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:14:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:20,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 04:14:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:20,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:14:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:20,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-29 04:14:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:20,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 04:14:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:20,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-29 04:14:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:14:20,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-29 04:14:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:14:20,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-29 04:14:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:14:20,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-29 04:14:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:20,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:20,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:20,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:20,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:20,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:20,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:20,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:20,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:20,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:20,748 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 202 proven. 338 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-10-29 04:14:20,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1258533090] [2020-10-29 04:14:20,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:20,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-29 04:14:20,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619477584] [2020-10-29 04:14:20,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-29 04:14:20,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:20,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-29 04:14:20,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=659, Unknown=0, NotChecked=0, Total=930 [2020-10-29 04:14:20,750 INFO L87 Difference]: Start difference. First operand 162 states and 172 transitions. Second operand 31 states. [2020-10-29 04:14:21,319 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-10-29 04:14:21,623 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-10-29 04:14:21,914 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-10-29 04:14:22,193 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-10-29 04:14:22,477 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-10-29 04:14:22,769 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-10-29 04:14:24,502 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-10-29 04:14:24,695 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2020-10-29 04:14:24,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:24,970 INFO L93 Difference]: Finished difference Result 258 states and 288 transitions. [2020-10-29 04:14:24,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-29 04:14:24,971 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 151 [2020-10-29 04:14:24,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:24,973 INFO L225 Difference]: With dead ends: 258 [2020-10-29 04:14:24,974 INFO L226 Difference]: Without dead ends: 202 [2020-10-29 04:14:24,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 27 SyntacticMatches, 21 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 794 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=764, Invalid=2428, Unknown=0, NotChecked=0, Total=3192 [2020-10-29 04:14:24,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-29 04:14:24,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 158. [2020-10-29 04:14:24,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-29 04:14:24,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 167 transitions. [2020-10-29 04:14:24,998 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 167 transitions. Word has length 151 [2020-10-29 04:14:24,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:24,999 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 167 transitions. [2020-10-29 04:14:24,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-29 04:14:24,999 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 167 transitions. [2020-10-29 04:14:25,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-10-29 04:14:25,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:25,000 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:25,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-29 04:14:25,000 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:25,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:25,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1950593675, now seen corresponding path program 23 times [2020-10-29 04:14:25,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:25,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198883188] [2020-10-29 04:14:25,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:25,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:25,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:25,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:28,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:30,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:30,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-29 04:14:30,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 04:14:30,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 04:14:30,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:30,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:30,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 51 [2020-10-29 04:14:30,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:14:30,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-29 04:14:30,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:31,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:31,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:31,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:31,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:31,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:31,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:31,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:31,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:31,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:31,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:31,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:31,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:31,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 04:14:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:31,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:31,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:31,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:31,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:31,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:31,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:31,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:31,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:31,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:31,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:14:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:31,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:31,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:31,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:31,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:31,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:31,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:31,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:31,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:31,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:31,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:31,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:31,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:14:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:31,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:31,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:31,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:31,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:31,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:31,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:31,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:31,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:31,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:31,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:31,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:31,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 04:14:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:31,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:31,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:31,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:31,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:31,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:31,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:31,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:31,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:31,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:31,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:31,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:31,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-29 04:14:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:31,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:31,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:31,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:31,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:31,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:31,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:31,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:31,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:31,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:31,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:31,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:31,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:14:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:31,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:31,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:31,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:31,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:31,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:31,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:31,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:31,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:31,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:31,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:31,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:31,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-29 04:14:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:31,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:31,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:31,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:31,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:31,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:31,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:31,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:31,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:31,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:31,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:31,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:31,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 04:14:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:31,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:31,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:31,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:31,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:31,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:31,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:31,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:31,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:31,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:31,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:31,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:31,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:14:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:31,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:31,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:31,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:31,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:31,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:31,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:31,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:31,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:31,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:31,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:31,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:31,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-29 04:14:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:31,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:31,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:31,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:31,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:31,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:31,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:31,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:31,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:31,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:31,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:31,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:31,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 04:14:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:31,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:31,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:31,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:31,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:31,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:14:31,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:31,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:31,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:31,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:31,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:31,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:31,942 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 22 proven. 564 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2020-10-29 04:14:31,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198883188] [2020-10-29 04:14:31,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:31,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-29 04:14:31,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377471397] [2020-10-29 04:14:31,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-29 04:14:31,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:31,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-29 04:14:31,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=462, Unknown=0, NotChecked=0, Total=506 [2020-10-29 04:14:31,944 INFO L87 Difference]: Start difference. First operand 158 states and 167 transitions. Second operand 23 states. [2020-10-29 04:14:34,194 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-10-29 04:14:34,546 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-10-29 04:14:34,764 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-29 04:14:35,168 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-29 04:14:35,417 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2020-10-29 04:14:35,829 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-10-29 04:14:36,087 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-10-29 04:14:36,535 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-29 04:14:36,805 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-10-29 04:14:37,268 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2020-10-29 04:14:37,564 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2020-10-29 04:14:37,965 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2020-10-29 04:14:38,252 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2020-10-29 04:14:38,536 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-10-29 04:14:38,726 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-10-29 04:14:41,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:41,478 INFO L93 Difference]: Finished difference Result 188 states and 199 transitions. [2020-10-29 04:14:41,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2020-10-29 04:14:41,479 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 155 [2020-10-29 04:14:41,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:41,482 INFO L225 Difference]: With dead ends: 188 [2020-10-29 04:14:41,482 INFO L226 Difference]: Without dead ends: 185 [2020-10-29 04:14:41,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 27 SyntacticMatches, 28 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1169 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=1129, Invalid=5351, Unknown=0, NotChecked=0, Total=6480 [2020-10-29 04:14:41,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-10-29 04:14:41,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 166. [2020-10-29 04:14:41,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-29 04:14:41,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 175 transitions. [2020-10-29 04:14:41,514 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 175 transitions. Word has length 155 [2020-10-29 04:14:41,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:41,515 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 175 transitions. [2020-10-29 04:14:41,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-29 04:14:41,515 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 175 transitions. [2020-10-29 04:14:41,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-10-29 04:14:41,516 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:41,516 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:41,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-29 04:14:41,517 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:41,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:41,517 INFO L82 PathProgramCache]: Analyzing trace with hash 816614686, now seen corresponding path program 24 times [2020-10-29 04:14:41,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:41,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [219213794] [2020-10-29 04:14:41,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:41,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:41,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:46,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:46,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-29 04:14:46,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 04:14:46,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 04:14:46,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:46,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-10-29 04:14:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:14:46,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-29 04:14:46,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:48,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:48,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:48,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:48,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:48,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:48,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:48,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:48,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:48,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:48,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:48,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:48,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 04:14:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:48,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:48,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:48,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:48,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:48,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:48,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:48,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:48,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:48,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:48,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:48,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 04:14:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:48,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:48,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:48,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:48,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:48,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:48,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:48,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:48,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:48,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:48,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:48,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:14:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:48,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:48,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:48,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:48,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:48,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:48,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:48,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:48,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:48,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:48,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:48,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 04:14:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:48,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:48,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:48,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:48,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:48,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:48,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:48,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:48,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:48,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:48,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:48,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-29 04:14:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:48,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:48,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:48,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:48,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:48,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:48,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:48,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:48,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:48,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 04:14:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:48,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:48,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:48,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:48,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:48,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:48,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:48,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:48,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:48,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:48,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:48,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-29 04:14:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:48,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:48,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:48,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:48,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:48,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:48,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:48,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:48,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:48,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:48,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:48,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-29 04:14:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:48,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:48,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:48,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:48,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:48,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:48,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:48,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:48,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:48,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:48,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:48,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-29 04:14:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:48,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:48,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:48,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:48,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:48,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:48,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:48,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:48,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:48,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:48,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:48,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-29 04:14:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:49,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:49,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:49,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:49,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:49,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:49,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:49,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:49,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:49,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:49,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:49,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:49,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-29 04:14:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:49,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:49,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:49,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:49,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:49,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:49,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:49,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:49,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:49,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-29 04:14:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:49,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:49,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:49,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:14:49,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:49,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:49,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:49,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:49,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:49,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:49,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:14:49,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:49,173 INFO L134 CoverageAnalysis]: Checked inductivity of 901 backedges. 288 proven. 349 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2020-10-29 04:14:49,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [219213794] [2020-10-29 04:14:49,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:49,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 04:14:49,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761692527] [2020-10-29 04:14:49,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 04:14:49,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:49,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 04:14:49,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=404, Unknown=0, NotChecked=0, Total=552 [2020-10-29 04:14:49,175 INFO L87 Difference]: Start difference. First operand 166 states and 175 transitions. Second operand 24 states. [2020-10-29 04:14:49,706 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-10-29 04:14:49,994 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-10-29 04:14:50,281 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-10-29 04:14:50,548 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-10-29 04:14:50,850 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-10-29 04:14:51,129 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-10-29 04:14:51,431 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-10-29 04:14:51,716 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2020-10-29 04:14:53,756 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-10-29 04:14:53,899 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2020-10-29 04:14:54,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:54,360 INFO L93 Difference]: Finished difference Result 271 states and 303 transitions. [2020-10-29 04:14:54,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-10-29 04:14:54,362 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 163 [2020-10-29 04:14:54,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:54,364 INFO L225 Difference]: With dead ends: 271 [2020-10-29 04:14:54,364 INFO L226 Difference]: Without dead ends: 211 [2020-10-29 04:14:54,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 29 SyntacticMatches, 32 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=614, Invalid=2038, Unknown=0, NotChecked=0, Total=2652 [2020-10-29 04:14:54,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-10-29 04:14:54,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 170. [2020-10-29 04:14:54,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-29 04:14:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 180 transitions. [2020-10-29 04:14:54,391 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 180 transitions. Word has length 163 [2020-10-29 04:14:54,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:54,391 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 180 transitions. [2020-10-29 04:14:54,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 04:14:54,391 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 180 transitions. [2020-10-29 04:14:54,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-29 04:14:54,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:54,393 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:54,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-29 04:14:54,393 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:54,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:54,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1078320707, now seen corresponding path program 25 times [2020-10-29 04:14:54,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:54,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [39216293] [2020-10-29 04:14:54,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:54,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:56,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:56,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:56,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:56,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:59,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:59,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:59,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-29 04:14:59,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-29 04:14:59,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 04:14:59,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:59,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:59,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 55 [2020-10-29 04:14:59,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-29 04:14:59,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 185 [2020-10-29 04:14:59,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:01,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:01,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:01,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:01,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:01,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:01,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:01,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:01,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:01,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:01,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:01,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 04:15:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:01,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:01,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:01,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:01,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:01,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:01,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:01,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:01,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:01,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:01,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:01,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 04:15:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:01,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:01,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:01,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:01,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:15:01,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:01,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:01,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:01,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:01,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:01,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:01,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 04:15:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:01,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:01,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:01,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:01,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:01,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:01,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:01,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:01,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:01,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:01,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:01,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 04:15:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:01,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:01,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:01,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:01,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:01,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:01,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:01,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:01,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:01,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:01,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:01,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-29 04:15:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:01,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:01,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:01,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:01,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:01,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:01,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:01,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:01,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:01,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:01,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:01,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 04:15:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:01,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:01,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:01,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:01,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:01,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:01,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:01,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:01,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:01,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:01,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:01,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-29 04:15:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:01,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:01,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:01,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:01,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:01,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:01,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:01,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:01,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:01,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:01,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:01,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-29 04:15:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:01,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:01,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:01,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:01,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:01,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:01,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:01,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:01,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:01,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-29 04:15:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:01,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:01,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:01,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:01,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:01,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:01,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:01,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:01,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:01,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:01,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:01,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-29 04:15:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:01,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:01,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:01,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:01,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:01,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:01,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:01,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:01,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:01,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:01,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:01,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-29 04:15:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:01,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:01,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:01,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:01,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 04:15:01,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:01,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:01,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:01,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:01,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:01,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:01,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-29 04:15:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:01,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:01,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:15:01,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:01,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:01,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:01,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:01,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:15:01,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:01,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:15:01,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:01,786 INFO L134 CoverageAnalysis]: Checked inductivity of 954 backedges. 24 proven. 663 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-10-29 04:15:01,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [39216293] [2020-10-29 04:15:01,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:15:01,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 04:15:01,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213739252] [2020-10-29 04:15:01,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 04:15:01,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:01,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 04:15:01,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=506, Unknown=0, NotChecked=0, Total=552 [2020-10-29 04:15:01,788 INFO L87 Difference]: Start difference. First operand 170 states and 180 transitions. Second operand 24 states. [2020-10-29 04:15:04,266 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2020-10-29 04:15:04,654 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2020-10-29 04:15:04,888 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-10-29 04:15:05,309 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-10-29 04:15:05,562 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2020-10-29 04:15:06,008 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-10-29 04:15:06,285 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-10-29 04:15:06,776 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2020-10-29 04:15:07,071 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2020-10-29 04:15:07,575 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2020-10-29 04:15:07,890 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2020-10-29 04:15:08,436 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2020-10-29 04:15:08,780 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-10-29 04:15:09,205 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2020-10-29 04:15:09,510 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2020-10-29 04:15:09,840 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2020-10-29 04:15:10,056 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64