/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/bitvector/byte_add-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:14:17,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:14:17,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:14:17,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:14:17,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:14:17,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:14:17,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:14:17,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:14:17,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:14:17,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:14:17,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:14:17,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:14:17,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:14:17,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:14:17,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:14:17,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:14:17,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:14:17,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:14:17,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:14:17,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:14:17,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:14:17,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:14:17,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:14:17,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:14:17,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:14:17,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:14:17,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:14:17,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:14:17,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:14:17,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:14:17,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:14:17,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:14:17,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:14:17,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:14:17,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:14:17,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:14:17,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:14:17,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:14:17,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:14:17,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:14:17,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:14:17,305 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 04:14:17,358 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:14:17,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:14:17,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:14:17,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:14:17,363 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:14:17,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:14:17,363 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:14:17,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:14:17,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:14:17,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:14:17,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:14:17,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:14:17,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:14:17,366 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:14:17,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:14:17,366 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:14:17,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:14:17,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:14:17,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:14:17,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:14:17,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:14:17,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:14:17,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:14:17,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:14:17,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:14:17,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:14:17,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:14:17,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:14:17,369 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:14:17,369 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:14:17,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:14:17,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:14:17,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:14:17,924 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:14:17,924 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:14:17,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/byte_add-1.i [2020-10-29 04:14:18,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bc17b41a/8d6be5dc384d4519b5a9cfdcd39386b1/FLAG8f6bd0f13 [2020-10-29 04:14:18,805 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:14:18,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/byte_add-1.i [2020-10-29 04:14:18,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bc17b41a/8d6be5dc384d4519b5a9cfdcd39386b1/FLAG8f6bd0f13 [2020-10-29 04:14:19,107 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5bc17b41a/8d6be5dc384d4519b5a9cfdcd39386b1 [2020-10-29 04:14:19,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:14:19,118 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:14:19,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:14:19,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:14:19,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:14:19,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:14:19" (1/1) ... [2020-10-29 04:14:19,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3de45a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:19, skipping insertion in model container [2020-10-29 04:14:19,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:14:19" (1/1) ... [2020-10-29 04:14:19,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:14:19,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:14:19,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:14:19,391 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:14:19,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:14:19,447 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:14:19,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:19 WrapperNode [2020-10-29 04:14:19,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:14:19,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:14:19,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:14:19,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:14:19,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:19" (1/1) ... [2020-10-29 04:14:19,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:19" (1/1) ... [2020-10-29 04:14:19,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:19" (1/1) ... [2020-10-29 04:14:19,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:19" (1/1) ... [2020-10-29 04:14:19,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:19" (1/1) ... [2020-10-29 04:14:19,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:19" (1/1) ... [2020-10-29 04:14:19,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:19" (1/1) ... [2020-10-29 04:14:19,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:14:19,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:14:19,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:14:19,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:14:19,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:19" (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 04:14:19,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:14:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:14:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:14:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 04:14:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure mp_add [2020-10-29 04:14:19,600 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:14:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:14:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:14:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 04:14:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 04:14:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:14:19,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:14:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-29 04:14:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 04:14:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure mp_add [2020-10-29 04:14:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:14:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:14:19,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:14:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:14:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:14:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:14:19,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:14:20,103 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:14:20,104 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-29 04:14:20,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:14:20 BoogieIcfgContainer [2020-10-29 04:14:20,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:14:20,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:14:20,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:14:20,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:14:20,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:14:19" (1/3) ... [2020-10-29 04:14:20,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b806cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:14:20, skipping insertion in model container [2020-10-29 04:14:20,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:14:19" (2/3) ... [2020-10-29 04:14:20,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b806cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:14:20, skipping insertion in model container [2020-10-29 04:14:20,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:14:20" (3/3) ... [2020-10-29 04:14:20,135 INFO L111 eAbstractionObserver]: Analyzing ICFG byte_add-1.i [2020-10-29 04:14:20,159 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:14:20,164 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:14:20,182 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:14:20,242 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:14:20,242 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:14:20,242 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:14:20,243 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:14:20,243 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:14:20,243 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:14:20,243 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:14:20,243 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:14:20,276 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2020-10-29 04:14:20,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-29 04:14:20,288 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:20,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:20,290 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:20,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:20,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1266705012, now seen corresponding path program 1 times [2020-10-29 04:14:20,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:20,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759884968] [2020-10-29 04:14:20,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:20,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:20,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:21,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:21,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-29 04:14:21,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:14:21,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 578 [2020-10-29 04:14:21,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:21,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:21,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:21,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 04:14:21,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 04:14:21,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-29 04:14:21,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:21,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:21,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:21,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:21,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:21,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:14:21,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:21,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:21,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:21,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:21,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:21,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:21,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 04:14:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:21,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:21,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:21,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:21,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-29 04:14:21,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:14:21,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 04:14:21,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:21,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:21,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:14:21,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:14:21,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 04:14:21,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:21,454 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 04:14:21,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759884968] [2020-10-29 04:14:21,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:14:21,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:14:21,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921415454] [2020-10-29 04:14:21,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:14:21,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:21,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:14:21,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:14:21,485 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 4 states. [2020-10-29 04:14:21,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:21,901 INFO L93 Difference]: Finished difference Result 124 states and 203 transitions. [2020-10-29 04:14:21,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:14:21,903 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-10-29 04:14:21,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:21,917 INFO L225 Difference]: With dead ends: 124 [2020-10-29 04:14:21,917 INFO L226 Difference]: Without dead ends: 73 [2020-10-29 04:14:21,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:14:21,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-10-29 04:14:21,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2020-10-29 04:14:22,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-29 04:14:22,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 101 transitions. [2020-10-29 04:14:22,011 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 101 transitions. Word has length 24 [2020-10-29 04:14:22,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:22,012 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 101 transitions. [2020-10-29 04:14:22,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:14:22,013 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 101 transitions. [2020-10-29 04:14:22,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-29 04:14:22,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:22,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:22,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:14:22,017 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:22,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:22,020 INFO L82 PathProgramCache]: Analyzing trace with hash -992029496, now seen corresponding path program 1 times [2020-10-29 04:14:22,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:22,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292488901] [2020-10-29 04:14:22,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:22,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:22,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:22,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:22,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:22,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:22,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:22,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:22,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:23,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:23,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:23,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 04:14:23,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 04:14:23,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1369 [2020-10-29 04:14:23,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:23,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:23,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:14:23,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 04:14:23,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 04:14:23,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:23,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:23,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:23,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:23,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:23,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:23,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:23,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:23,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:23,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:23,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:23,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:23,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 04:14:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:23,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:23,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:23,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:23,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:23,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:23,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:23,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:23,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:23,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:23,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:23,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-29 04:14:23,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 04:14:23,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 430 [2020-10-29 04:14:23,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:23,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:23,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:14:23,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 04:14:23,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 04:14:23,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:23,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:14:23,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [292488901] [2020-10-29 04:14:23,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:14:23,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-29 04:14:23,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824678280] [2020-10-29 04:14:23,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:14:23,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:23,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:14:23,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:14:23,985 INFO L87 Difference]: Start difference. First operand 71 states and 101 transitions. Second operand 5 states. [2020-10-29 04:14:24,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:24,476 INFO L93 Difference]: Finished difference Result 175 states and 262 transitions. [2020-10-29 04:14:24,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 04:14:24,476 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-10-29 04:14:24,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:24,480 INFO L225 Difference]: With dead ends: 175 [2020-10-29 04:14:24,481 INFO L226 Difference]: Without dead ends: 124 [2020-10-29 04:14:24,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:14:24,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-29 04:14:24,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 117. [2020-10-29 04:14:24,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-29 04:14:24,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 170 transitions. [2020-10-29 04:14:24,499 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 170 transitions. Word has length 30 [2020-10-29 04:14:24,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:24,500 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 170 transitions. [2020-10-29 04:14:24,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:14:24,500 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 170 transitions. [2020-10-29 04:14:24,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-29 04:14:24,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:24,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:24,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:14:24,503 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:24,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:24,504 INFO L82 PathProgramCache]: Analyzing trace with hash 343543299, now seen corresponding path program 1 times [2020-10-29 04:14:24,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:24,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388857956] [2020-10-29 04:14:24,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:24,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:24,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:24,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:24,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:24,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:24,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:24,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:25,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:25,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:25,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:26,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-29 04:14:26,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 04:14:26,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1603 [2020-10-29 04:14:26,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:26,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:14:26,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 04:14:26,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 04:14:26,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:26,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:26,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:26,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:26,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:26,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:14:26,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:26,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:26,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:26,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:26,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:26,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:26,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 04:14:26,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:26,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:26,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:26,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 04:14:26,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-29 04:14:26,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 721 [2020-10-29 04:14:26,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:26,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:26,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 04:14:26,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 04:14:26,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 04:14:26,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:26,988 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 04:14:26,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388857956] [2020-10-29 04:14:26,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:26,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:14:26,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136850400] [2020-10-29 04:14:26,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:14:26,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:26,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:14:26,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:14:26,995 INFO L87 Difference]: Start difference. First operand 117 states and 170 transitions. Second operand 5 states. [2020-10-29 04:14:27,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:27,453 INFO L93 Difference]: Finished difference Result 236 states and 366 transitions. [2020-10-29 04:14:27,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:14:27,454 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-10-29 04:14:27,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:27,461 INFO L225 Difference]: With dead ends: 236 [2020-10-29 04:14:27,461 INFO L226 Difference]: Without dead ends: 173 [2020-10-29 04:14:27,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:14:27,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-10-29 04:14:27,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 158. [2020-10-29 04:14:27,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-29 04:14:27,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 232 transitions. [2020-10-29 04:14:27,486 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 232 transitions. Word has length 31 [2020-10-29 04:14:27,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:27,486 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 232 transitions. [2020-10-29 04:14:27,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:14:27,487 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 232 transitions. [2020-10-29 04:14:27,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-29 04:14:27,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:27,494 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:27,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:14:27,495 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:27,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:27,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1011651050, now seen corresponding path program 1 times [2020-10-29 04:14:27,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:27,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823417440] [2020-10-29 04:14:27,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:27,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:27,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:27,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:27,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:27,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:27,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:27,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:27,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:27,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:27,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:27,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:27,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:28,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:28,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:28,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:28,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:28,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:29,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:29,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:30,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:31,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:31,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:31,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:32,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:32,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 04:14:32,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 23 [2020-10-29 04:14:32,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 04:14:32,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:32,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:32,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:14:32,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 04:14:32,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 04:14:32,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:32,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:32,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:32,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:32,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:32,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:32,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:14:32,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:32,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:32,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:32,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:32,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:32,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:32,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 04:14:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:32,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:32,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:32,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:32,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:32,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:32,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:32,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:32,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:32,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:33,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:33,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:33,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:33,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:33,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:33,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:33,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:33,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:33,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:33,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:34,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:34,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:34,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:34,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:35,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:35,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-29 04:14:35,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 23 [2020-10-29 04:14:35,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3404 [2020-10-29 04:14:35,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:35,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:35,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:14:35,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 04:14:35,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 04:14:35,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:36,051 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:14:36,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823417440] [2020-10-29 04:14:36,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:36,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 04:14:36,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980189955] [2020-10-29 04:14:36,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:14:36,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:36,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:14:36,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:14:36,056 INFO L87 Difference]: Start difference. First operand 158 states and 232 transitions. Second operand 6 states. [2020-10-29 04:14:36,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:36,625 INFO L93 Difference]: Finished difference Result 336 states and 519 transitions. [2020-10-29 04:14:36,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 04:14:36,625 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-10-29 04:14:36,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:36,628 INFO L225 Difference]: With dead ends: 336 [2020-10-29 04:14:36,631 INFO L226 Difference]: Without dead ends: 240 [2020-10-29 04:14:36,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-29 04:14:36,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-10-29 04:14:36,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 224. [2020-10-29 04:14:36,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-29 04:14:36,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 326 transitions. [2020-10-29 04:14:36,659 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 326 transitions. Word has length 37 [2020-10-29 04:14:36,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:36,660 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 326 transitions. [2020-10-29 04:14:36,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:14:36,660 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 326 transitions. [2020-10-29 04:14:36,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-29 04:14:36,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:36,669 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:36,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:14:36,669 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:36,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:36,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1748860329, now seen corresponding path program 1 times [2020-10-29 04:14:36,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:36,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1981700688] [2020-10-29 04:14:36,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:36,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:36,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:36,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:36,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:36,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:36,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:36,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:36,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:37,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:37,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:37,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:37,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:38,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:38,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:38,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:38,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:38,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:38,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:39,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:40,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:40,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:40,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:41,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:41,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:41,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-29 04:14:41,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 41 [2020-10-29 04:14:41,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 04:14:41,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:41,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:41,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 04:14:41,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 04:14:41,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 04:14:41,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:41,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:41,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:41,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:41,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:41,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:41,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:41,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:41,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:41,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:41,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:41,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:41,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:41,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 04:14:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:41,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:41,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:41,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:41,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:41,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:41,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:41,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:41,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:41,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:42,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:42,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:42,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:42,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:42,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:42,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:42,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:43,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:44,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:45,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:45,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:45,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:45,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:45,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:45,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:45,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:45,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:45,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:45,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:45,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:45,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:45,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:46,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:46,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:46,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:46,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:46,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:46,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 04:14:46,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 73 [2020-10-29 04:14:46,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 04:14:46,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:46,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:46,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 04:14:46,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-29 04:14:46,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-29 04:14:46,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:14:46,859 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:14:46,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1981700688] [2020-10-29 04:14:46,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:46,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 04:14:46,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371865669] [2020-10-29 04:14:46,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:14:46,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:46,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:14:46,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:14:46,864 INFO L87 Difference]: Start difference. First operand 224 states and 326 transitions. Second operand 7 states. [2020-10-29 04:14:47,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:14:47,586 INFO L93 Difference]: Finished difference Result 436 states and 660 transitions. [2020-10-29 04:14:47,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 04:14:47,588 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-10-29 04:14:47,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:14:47,590 INFO L225 Difference]: With dead ends: 436 [2020-10-29 04:14:47,590 INFO L226 Difference]: Without dead ends: 275 [2020-10-29 04:14:47,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:14:47,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-10-29 04:14:47,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 233. [2020-10-29 04:14:47,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-10-29 04:14:47,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 314 transitions. [2020-10-29 04:14:47,618 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 314 transitions. Word has length 43 [2020-10-29 04:14:47,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:14:47,620 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 314 transitions. [2020-10-29 04:14:47,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:14:47,620 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 314 transitions. [2020-10-29 04:14:47,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-29 04:14:47,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:14:47,625 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:14:47,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:14:47,625 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:14:47,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:14:47,626 INFO L82 PathProgramCache]: Analyzing trace with hash 196126270, now seen corresponding path program 1 times [2020-10-29 04:14:47,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:14:47,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524989472] [2020-10-29 04:14:47,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:14:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:47,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:47,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:47,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:47,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:47,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:47,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:47,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:47,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:47,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:47,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:47,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:47,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:48,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:49,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:49,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:49,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:50,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:51,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:51,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:51,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:51,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:51,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:51,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:51,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:51,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:52,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-29 04:14:52,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 50 [2020-10-29 04:14:52,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 04:14:52,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:52,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:52,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 04:14:52,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 04:14:52,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 04:14:52,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:52,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:14:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:52,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:52,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:14:52,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:14:52,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:14:52,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:52,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:52,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:14:52,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:14:52,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:14:52,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:52,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 04:14:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:14:52,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:52,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:53,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:53,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:53,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:53,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:53,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:53,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:53,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:54,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:55,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:56,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:56,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:56,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:56,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:57,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:57,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:57,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:57,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:57,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:57,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:57,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:57,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:57,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:57,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:57,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:14:57,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:14:57,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 04:14:57,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 49 [2020-10-29 04:14:57,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 04:14:57,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:14:57,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:14:57,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:14:57,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 04:14:57,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-29 04:14:57,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:14:57,833 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 23 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 04:14:57,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524989472] [2020-10-29 04:14:57,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:14:57,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 04:14:57,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779464959] [2020-10-29 04:14:57,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 04:14:57,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:14:57,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 04:14:57,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:14:57,837 INFO L87 Difference]: Start difference. First operand 233 states and 314 transitions. Second operand 8 states. [2020-10-29 04:15:00,476 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 36 [2020-10-29 04:15:00,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:00,985 INFO L93 Difference]: Finished difference Result 805 states and 1208 transitions. [2020-10-29 04:15:00,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 04:15:00,985 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2020-10-29 04:15:00,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:00,990 INFO L225 Difference]: With dead ends: 805 [2020-10-29 04:15:00,990 INFO L226 Difference]: Without dead ends: 599 [2020-10-29 04:15:00,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=216, Invalid=540, Unknown=0, NotChecked=0, Total=756 [2020-10-29 04:15:00,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-10-29 04:15:01,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 430. [2020-10-29 04:15:01,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-10-29 04:15:01,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 584 transitions. [2020-10-29 04:15:01,016 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 584 transitions. Word has length 49 [2020-10-29 04:15:01,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:01,016 INFO L481 AbstractCegarLoop]: Abstraction has 430 states and 584 transitions. [2020-10-29 04:15:01,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 04:15:01,017 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 584 transitions. [2020-10-29 04:15:01,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-29 04:15:01,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:01,019 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:15:01,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:15:01,019 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:01,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:01,020 INFO L82 PathProgramCache]: Analyzing trace with hash 728269518, now seen corresponding path program 1 times [2020-10-29 04:15:01,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:01,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861528164] [2020-10-29 04:15:01,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:01,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:01,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:02,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:03,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:03,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:03,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:03,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:04,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:05,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:05,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:05,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:05,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:06,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-29 04:15:06,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 56 [2020-10-29 04:15:06,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 04:15:06,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:06,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:06,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 04:15:06,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 04:15:06,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 04:15:06,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:06,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:06,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:06,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:06,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:06,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:06,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:06,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:06,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:06,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:06,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:06,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:06,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 04:15:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:06,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:06,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:07,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:08,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:08,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:08,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:08,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:08,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:08,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:09,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:10,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:10,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:10,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:10,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:10,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:10,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:10,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:10,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:10,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:10,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:10,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:10,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:10,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:10,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:11,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:11,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:11,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:11,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 04:15:11,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 75 [2020-10-29 04:15:11,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 04:15:11,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:11,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:11,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 04:15:11,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-29 04:15:11,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 04:15:11,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:11,185 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:15:11,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861528164] [2020-10-29 04:15:11,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:15:11,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 04:15:11,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436657132] [2020-10-29 04:15:11,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:15:11,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:11,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:15:11,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:15:11,191 INFO L87 Difference]: Start difference. First operand 430 states and 584 transitions. Second operand 7 states. [2020-10-29 04:15:12,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:12,180 INFO L93 Difference]: Finished difference Result 853 states and 1197 transitions. [2020-10-29 04:15:12,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 04:15:12,185 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2020-10-29 04:15:12,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:12,188 INFO L225 Difference]: With dead ends: 853 [2020-10-29 04:15:12,189 INFO L226 Difference]: Without dead ends: 521 [2020-10-29 04:15:12,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:15:12,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2020-10-29 04:15:12,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 475. [2020-10-29 04:15:12,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-10-29 04:15:12,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 644 transitions. [2020-10-29 04:15:12,222 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 644 transitions. Word has length 50 [2020-10-29 04:15:12,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:12,223 INFO L481 AbstractCegarLoop]: Abstraction has 475 states and 644 transitions. [2020-10-29 04:15:12,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:15:12,223 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 644 transitions. [2020-10-29 04:15:12,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-29 04:15:12,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:12,228 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:15:12,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 04:15:12,229 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:12,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:12,229 INFO L82 PathProgramCache]: Analyzing trace with hash 294007178, now seen corresponding path program 1 times [2020-10-29 04:15:12,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:12,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303957586] [2020-10-29 04:15:12,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:12,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:12,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:13,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:13,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:13,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:13,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:13,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:13,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:13,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:13,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:13,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:13,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:13,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:14,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:14,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:14,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:14,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:14,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:14,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:14,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:14,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:14,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:14,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:14,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:15,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:15,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:17,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-29 04:15:17,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 51 [2020-10-29 04:15:17,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 04:15:17,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:17,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:17,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 04:15:17,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 04:15:17,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 04:15:17,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:17,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:17,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:17,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:17,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:17,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:17,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:17,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:17,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:17,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:17,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:17,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:17,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 04:15:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:17,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:17,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:18,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:19,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:19,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:19,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:19,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:19,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:19,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:22,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:22,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 04:15:22,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 49 [2020-10-29 04:15:22,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 04:15:22,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:22,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 04:15:22,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-29 04:15:22,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 04:15:22,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:15:22,436 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 23 proven. 14 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 04:15:22,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303957586] [2020-10-29 04:15:22,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:15:22,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 04:15:22,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973946587] [2020-10-29 04:15:22,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 04:15:22,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:22,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 04:15:22,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-29 04:15:22,438 INFO L87 Difference]: Start difference. First operand 475 states and 644 transitions. Second operand 10 states. [2020-10-29 04:15:28,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:28,300 INFO L93 Difference]: Finished difference Result 1473 states and 2059 transitions. [2020-10-29 04:15:28,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-29 04:15:28,301 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2020-10-29 04:15:28,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:28,308 INFO L225 Difference]: With dead ends: 1473 [2020-10-29 04:15:28,308 INFO L226 Difference]: Without dead ends: 1058 [2020-10-29 04:15:28,310 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=269, Invalid=1453, Unknown=0, NotChecked=0, Total=1722 [2020-10-29 04:15:28,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2020-10-29 04:15:28,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 432. [2020-10-29 04:15:28,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2020-10-29 04:15:28,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 561 transitions. [2020-10-29 04:15:28,341 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 561 transitions. Word has length 50 [2020-10-29 04:15:28,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:28,341 INFO L481 AbstractCegarLoop]: Abstraction has 432 states and 561 transitions. [2020-10-29 04:15:28,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 04:15:28,341 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 561 transitions. [2020-10-29 04:15:28,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-29 04:15:28,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:28,343 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:15:28,343 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 04:15:28,343 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:28,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:28,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1792472077, now seen corresponding path program 1 times [2020-10-29 04:15:28,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:28,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1436773932] [2020-10-29 04:15:28,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:28,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:28,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:28,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:28,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:28,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:28,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:28,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:28,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:28,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:28,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:29,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:29,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:29,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:29,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:29,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:29,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:30,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:31,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:31,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:31,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:31,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:31,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:31,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:31,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:32,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:32,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:32,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:32,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:32,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:33,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:33,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-29 04:15:33,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 45 [2020-10-29 04:15:33,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 04:15:33,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:33,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:33,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:15:33,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 04:15:33,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 04:15:33,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:33,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:33,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:33,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:33,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:33,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:33,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:33,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:33,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:33,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:33,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:33,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:33,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:33,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 04:15:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:33,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:33,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:33,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:33,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:33,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:33,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:33,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:33,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:33,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:33,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:33,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:34,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:35,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:35,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:35,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:35,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:35,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:35,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:35,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:36,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:36,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:36,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:36,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:37,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:37,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:38,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:38,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-29 04:15:38,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 45 [2020-10-29 04:15:38,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 04:15:38,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:38,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:38,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:15:38,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:15:38,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-29 04:15:38,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:38,488 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 04:15:38,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1436773932] [2020-10-29 04:15:38,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:15:38,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 04:15:38,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194996545] [2020-10-29 04:15:38,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:15:38,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:38,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:15:38,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:15:38,491 INFO L87 Difference]: Start difference. First operand 432 states and 561 transitions. Second operand 6 states. [2020-10-29 04:15:39,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:39,699 INFO L93 Difference]: Finished difference Result 1450 states and 1903 transitions. [2020-10-29 04:15:39,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 04:15:39,701 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-10-29 04:15:39,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:39,710 INFO L225 Difference]: With dead ends: 1450 [2020-10-29 04:15:39,710 INFO L226 Difference]: Without dead ends: 1052 [2020-10-29 04:15:39,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:15:39,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2020-10-29 04:15:39,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 782. [2020-10-29 04:15:39,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2020-10-29 04:15:39,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1001 transitions. [2020-10-29 04:15:39,757 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1001 transitions. Word has length 57 [2020-10-29 04:15:39,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:39,760 INFO L481 AbstractCegarLoop]: Abstraction has 782 states and 1001 transitions. [2020-10-29 04:15:39,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:15:39,760 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1001 transitions. [2020-10-29 04:15:39,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-29 04:15:39,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:39,763 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:15:39,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 04:15:39,763 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:39,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:39,764 INFO L82 PathProgramCache]: Analyzing trace with hash 90326879, now seen corresponding path program 1 times [2020-10-29 04:15:39,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:39,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104864304] [2020-10-29 04:15:39,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:39,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:39,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:39,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:39,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:39,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:39,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:40,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:41,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:41,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:41,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:41,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:41,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:41,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:41,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:42,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:42,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:43,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:43,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:43,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:44,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 04:15:44,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 39 [2020-10-29 04:15:44,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 04:15:44,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:44,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:44,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:15:44,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 04:15:44,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-29 04:15:44,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:44,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:44,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:44,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:44,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:44,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:44,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:44,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:44,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:44,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:44,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:44,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:44,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 04:15:44,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:44,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:44,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:45,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:45,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:45,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:45,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:45,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:45,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:46,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:47,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:48,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:48,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:48,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:48,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:48,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:49,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:49,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 04:15:49,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 46 [2020-10-29 04:15:49,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 04:15:49,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:49,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:49,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 04:15:49,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:15:49,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-29 04:15:49,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:49,946 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 04:15:49,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104864304] [2020-10-29 04:15:49,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:15:49,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 04:15:49,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319033569] [2020-10-29 04:15:49,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:15:49,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:15:49,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:15:49,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:15:49,948 INFO L87 Difference]: Start difference. First operand 782 states and 1001 transitions. Second operand 7 states. [2020-10-29 04:15:51,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:15:51,814 INFO L93 Difference]: Finished difference Result 2361 states and 3068 transitions. [2020-10-29 04:15:51,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 04:15:51,815 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2020-10-29 04:15:51,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:15:51,826 INFO L225 Difference]: With dead ends: 2361 [2020-10-29 04:15:51,827 INFO L226 Difference]: Without dead ends: 1676 [2020-10-29 04:15:51,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2020-10-29 04:15:51,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2020-10-29 04:15:51,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1330. [2020-10-29 04:15:51,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1330 states. [2020-10-29 04:15:51,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1710 transitions. [2020-10-29 04:15:51,907 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1710 transitions. Word has length 58 [2020-10-29 04:15:51,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:15:51,907 INFO L481 AbstractCegarLoop]: Abstraction has 1330 states and 1710 transitions. [2020-10-29 04:15:51,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:15:51,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1710 transitions. [2020-10-29 04:15:51,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-10-29 04:15:51,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:15:51,910 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:15:51,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 04:15:51,910 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:15:51,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:15:51,910 INFO L82 PathProgramCache]: Analyzing trace with hash -268829016, now seen corresponding path program 1 times [2020-10-29 04:15:51,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:15:51,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848603461] [2020-10-29 04:15:51,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:15:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:51,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:51,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:51,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:52,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:53,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:53,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:53,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:54,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:55,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:55,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:55,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:55,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:55,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:55,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:55,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:56,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:56,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:56,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:56,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:56,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:56,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:56,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:56,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:56,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:56,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 04:15:56,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 47 [2020-10-29 04:15:56,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 04:15:56,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:56,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:56,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 04:15:56,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 04:15:56,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-29 04:15:56,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:56,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:15:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:56,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:56,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:15:56,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:15:56,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:15:56,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 04:15:56,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:15:56,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:15:56,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:15:56,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:15:56,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:15:56,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:15:56,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 04:15:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:15:56,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:57,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:58,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:15:59,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:00,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:00,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:00,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:01,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:01,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:01,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:01,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 04:16:01,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 73 [2020-10-29 04:16:01,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 04:16:01,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:01,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:01,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 04:16:01,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 04:16:01,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 04:16:01,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:02,126 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 04:16:02,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848603461] [2020-10-29 04:16:02,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:16:02,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 04:16:02,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153942776] [2020-10-29 04:16:02,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 04:16:02,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:16:02,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 04:16:02,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-29 04:16:02,129 INFO L87 Difference]: Start difference. First operand 1330 states and 1710 transitions. Second operand 10 states. [2020-10-29 04:16:03,063 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2020-10-29 04:16:05,734 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2020-10-29 04:16:05,924 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 36 [2020-10-29 04:16:06,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:16:06,569 INFO L93 Difference]: Finished difference Result 3028 states and 3964 transitions. [2020-10-29 04:16:06,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-29 04:16:06,570 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 59 [2020-10-29 04:16:06,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:16:06,583 INFO L225 Difference]: With dead ends: 3028 [2020-10-29 04:16:06,583 INFO L226 Difference]: Without dead ends: 2241 [2020-10-29 04:16:06,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=323, Invalid=1083, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 04:16:06,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2020-10-29 04:16:06,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 1933. [2020-10-29 04:16:06,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1933 states. [2020-10-29 04:16:06,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1933 states to 1933 states and 2474 transitions. [2020-10-29 04:16:06,682 INFO L78 Accepts]: Start accepts. Automaton has 1933 states and 2474 transitions. Word has length 59 [2020-10-29 04:16:06,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:16:06,683 INFO L481 AbstractCegarLoop]: Abstraction has 1933 states and 2474 transitions. [2020-10-29 04:16:06,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 04:16:06,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1933 states and 2474 transitions. [2020-10-29 04:16:06,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-29 04:16:06,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:16:06,685 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:16:06,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 04:16:06,686 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:16:06,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:16:06,686 INFO L82 PathProgramCache]: Analyzing trace with hash 302944604, now seen corresponding path program 1 times [2020-10-29 04:16:06,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:16:06,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705365355] [2020-10-29 04:16:06,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:16:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:06,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:06,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:06,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 04:16:06,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:06,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 04:16:06,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:06,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:06,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:06,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-29 04:16:06,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 04:16:06,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:06,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:16:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:06,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:06,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:06,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:16:06,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:06,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 04:16:06,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:06,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:06,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:16:06,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:16:06,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:16:06,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:06,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-29 04:16:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:16:06,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:16:06,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:16:06,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-29 04:16:06,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:16:06,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 04:16:06,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:16:06,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:16:06,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:16:06,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 04:16:06,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 04:16:06,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:16:06,900 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-29 04:16:06,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705365355] [2020-10-29 04:16:06,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:16:06,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:16:06,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983943417] [2020-10-29 04:16:06,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:16:06,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:16:06,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:16:06,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:16:06,902 INFO L87 Difference]: Start difference. First operand 1933 states and 2474 transitions. Second operand 4 states. [2020-10-29 04:16:07,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:16:07,233 INFO L93 Difference]: Finished difference Result 2621 states and 3289 transitions. [2020-10-29 04:16:07,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 04:16:07,234 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2020-10-29 04:16:07,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:16:07,245 INFO L225 Difference]: With dead ends: 2621 [2020-10-29 04:16:07,245 INFO L226 Difference]: Without dead ends: 2565 [2020-10-29 04:16:07,247 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:16:07,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2020-10-29 04:16:07,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2379. [2020-10-29 04:16:07,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2379 states. [2020-10-29 04:16:07,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 2973 transitions. [2020-10-29 04:16:07,359 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 2973 transitions. Word has length 63 [2020-10-29 04:16:07,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:16:07,360 INFO L481 AbstractCegarLoop]: Abstraction has 2379 states and 2973 transitions. [2020-10-29 04:16:07,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:16:07,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 2973 transitions. [2020-10-29 04:16:07,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-29 04:16:07,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:16:07,362 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:16:07,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 04:16:07,362 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:16:07,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:16:07,363 INFO L82 PathProgramCache]: Analyzing trace with hash -91422182, now seen corresponding path program 1 times [2020-10-29 04:16:07,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:16:07,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195231077] [2020-10-29 04:16:07,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:16:07,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 04:16:07,380 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 04:16:07,380 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 04:16:07,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 04:16:07,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:16:07 BoogieIcfgContainer [2020-10-29 04:16:07,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 04:16:07,427 INFO L168 Benchmark]: Toolchain (without parser) took 108307.00 ms. Allocated memory was 154.1 MB in the beginning and 596.6 MB in the end (delta: 442.5 MB). Free memory was 129.3 MB in the beginning and 430.0 MB in the end (delta: -300.7 MB). Peak memory consumption was 142.7 MB. Max. memory is 8.0 GB. [2020-10-29 04:16:07,428 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 154.1 MB. Free memory is still 137.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 04:16:07,428 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.30 ms. Allocated memory is still 154.1 MB. Free memory was 128.7 MB in the beginning and 117.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-29 04:16:07,429 INFO L168 Benchmark]: Boogie Preprocessor took 66.13 ms. Allocated memory is still 154.1 MB. Free memory was 117.6 MB in the beginning and 115.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-29 04:16:07,429 INFO L168 Benchmark]: RCFGBuilder took 594.11 ms. Allocated memory is still 154.1 MB. Free memory was 115.1 MB in the beginning and 92.4 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-29 04:16:07,430 INFO L168 Benchmark]: TraceAbstraction took 107303.91 ms. Allocated memory was 154.1 MB in the beginning and 596.6 MB in the end (delta: 442.5 MB). Free memory was 92.0 MB in the beginning and 430.0 MB in the end (delta: -338.0 MB). Peak memory consumption was 104.9 MB. Max. memory is 8.0 GB. [2020-10-29 04:16:07,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 154.1 MB. Free memory is still 137.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 328.30 ms. Allocated memory is still 154.1 MB. Free memory was 128.7 MB in the beginning and 117.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 66.13 ms. Allocated memory is still 154.1 MB. Free memory was 117.6 MB in the beginning and 115.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 594.11 ms. Allocated memory is still 154.1 MB. Free memory was 115.1 MB in the beginning and 92.4 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 107303.91 ms. Allocated memory was 154.1 MB in the beginning and 596.6 MB in the end (delta: 442.5 MB). Free memory was 92.0 MB in the beginning and 430.0 MB in the end (delta: -338.0 MB). Peak memory consumption was 104.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 108. Possible FailurePath: [L116] unsigned int a, b, r; [L118] a = __VERIFIER_nondet_uint() [L119] b = __VERIFIER_nondet_uint() [L121] CALL, EXPR mp_add(a, b) [L34] unsigned char a0, a1, a2, a3; [L35] unsigned char b0, b1, b2, b3; [L36] unsigned char r0, r1, r2, r3; [L37] unsigned short carry; [L38] unsigned short partial_sum; [L39] unsigned int r; [L40] unsigned char i; [L41] unsigned char na, nb; [L42] a0 = a [L43] a1 = a >> 8 [L44] a2 = a >> 16U [L45] a3 = a >> 24U [L46] b0 = b [L47] b1 = b >> 8U [L48] b2 = b >> 16U [L49] b3 = b >> 24U [L50] na = (unsigned char)4 [L51] COND TRUE a3 == (unsigned char)0 [L52] na = na - 1 [L53] COND TRUE a2 == (unsigned char)0 [L54] na = na - 1 [L55] COND TRUE a1 == (unsigned char)0 [L56] na = na - 1 [L60] nb = (unsigned char)4 [L61] COND TRUE b3 == (unsigned char)0 [L62] nb = nb - 1 [L63] COND TRUE b2 == (unsigned char)0 [L64] nb = nb - 1 [L65] COND TRUE b1 == (unsigned char)0 [L66] nb = nb - 1 [L70] carry = (unsigned short)0 [L71] i = (unsigned char)0 [L72] COND TRUE (i < na) || (i < nb) || (carry != (unsigned short)0) [L73] partial_sum = carry [L74] carry = (unsigned short)0 [L75] COND TRUE i < na [L76] COND TRUE i == (unsigned char)0 [L76] partial_sum = partial_sum + a0 [L77] COND FALSE !(i == (unsigned char)1) [L78] COND FALSE !(i == (unsigned char)2) [L79] COND FALSE !(i == (unsigned char)3) [L81] COND TRUE i < nb [L82] COND TRUE i == (unsigned char)0 [L82] partial_sum = partial_sum + b0 [L83] COND FALSE !(i == (unsigned char)1) [L84] COND FALSE !(i == (unsigned char)2) [L85] COND FALSE !(i == (unsigned char)3) [L87] COND FALSE !(partial_sum > ((unsigned char)254)) [L91] COND TRUE i == (unsigned char)0 [L91] r0 = (unsigned char)partial_sum [L92] COND FALSE !(i == (unsigned char)1) [L93] COND FALSE !(i == (unsigned char)2) [L94] COND FALSE !(i == (unsigned char)3) [L96] i = i + (unsigned char)1 [L72] COND FALSE !((i < na) || (i < nb) || (carry != (unsigned short)0)) [L99] COND TRUE i < (unsigned char)4 [L100] COND FALSE !(i == (unsigned char)0) [L101] COND TRUE i == (unsigned char)1 [L101] r1 = (unsigned char)0 [L102] COND FALSE !(i == (unsigned char)2) [L103] COND FALSE !(i == (unsigned char)3) [L105] i = i + (unsigned char)1 [L99] COND TRUE i < (unsigned char)4 [L100] COND FALSE !(i == (unsigned char)0) [L101] COND FALSE !(i == (unsigned char)1) [L102] COND TRUE i == (unsigned char)2 [L102] r2 = (unsigned char)0 [L103] COND FALSE !(i == (unsigned char)3) [L105] i = i + (unsigned char)1 [L99] COND TRUE i < (unsigned char)4 [L100] COND FALSE !(i == (unsigned char)0) [L101] COND FALSE !(i == (unsigned char)1) [L102] COND FALSE !(i == (unsigned char)2) [L103] COND TRUE i == (unsigned char)3 [L103] r3 = (unsigned char)0 [L105] i = i + (unsigned char)1 [L99] COND FALSE !(i < (unsigned char)4) [L108] r = r0 | (r1 << 8U) | (r2 << 16U) | ((unsigned int)r3 << 24U) [L110] return r; [L121] RET, EXPR mp_add(a, b) [L121] r = mp_add(a, b) [L123] CALL __VERIFIER_assert(r == a + b) [L16] COND TRUE !(cond) [L17] CALL reach_error() [L12] COND FALSE !(0) [L12] __assert_fail ("0", "byte_add-1.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 107.1s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 20.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 742 SDtfs, 4464 SDslu, 321 SDs, 0 SdLazy, 7576 SolverSat, 680 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 240 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 992 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2379occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 2033 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 85.1s InterpolantComputationTime, 614 NumberOfCodeBlocks, 614 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 539 ConstructedInterpolants, 0 QuantifiedInterpolants, 147715 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 144/239 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...