/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/eca-rers2012/Problem16_label29.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:02:19,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:02:19,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:02:19,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:02:19,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:02:19,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:02:19,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:02:19,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:02:19,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:02:19,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:02:19,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:02:19,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:02:19,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:02:19,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:02:19,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:02:19,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:02:19,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:02:19,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:02:19,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:02:19,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:02:19,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:02:19,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:02:19,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:02:19,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:02:19,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:02:19,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:02:19,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:02:19,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:02:19,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:02:19,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:02:19,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:02:19,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:02:19,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:02:19,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:02:19,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:02:19,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:02:19,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:02:19,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:02:19,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:02:19,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:02:19,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:02:19,557 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 08:02:19,639 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:02:19,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:02:19,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:02:19,648 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:02:19,648 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:02:19,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:02:19,649 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:02:19,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:02:19,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:02:19,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:02:19,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:02:19,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:02:19,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:02:19,650 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:02:19,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:02:19,650 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:02:19,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:02:19,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:02:19,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:02:19,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:02:19,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:02:19,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:02:19,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:02:19,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:02:19,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:02:19,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:02:19,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:02:19,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:02:19,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:02:19,658 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:02:20,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:02:20,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:02:20,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:02:20,151 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:02:20,152 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:02:20,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label29.c [2020-10-29 08:02:20,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/667dfea80/fd08131d50fb4c67ad2d2c6c96ece10c/FLAG418eb207e [2020-10-29 08:02:21,111 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:02:21,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label29.c [2020-10-29 08:02:21,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/667dfea80/fd08131d50fb4c67ad2d2c6c96ece10c/FLAG418eb207e [2020-10-29 08:02:21,215 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/667dfea80/fd08131d50fb4c67ad2d2c6c96ece10c [2020-10-29 08:02:21,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:02:21,228 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:02:21,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:02:21,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:02:21,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:02:21,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:02:21" (1/1) ... [2020-10-29 08:02:21,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44f45829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:21, skipping insertion in model container [2020-10-29 08:02:21,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:02:21" (1/1) ... [2020-10-29 08:02:21,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:02:21,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:02:22,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:02:22,195 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:02:22,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:02:22,527 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:02:22,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:22 WrapperNode [2020-10-29 08:02:22,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:02:22,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:02:22,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:02:22,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:02:22,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:22" (1/1) ... [2020-10-29 08:02:22,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:22" (1/1) ... [2020-10-29 08:02:22,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:22" (1/1) ... [2020-10-29 08:02:22,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:22" (1/1) ... [2020-10-29 08:02:22,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:22" (1/1) ... [2020-10-29 08:02:22,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:22" (1/1) ... [2020-10-29 08:02:22,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:22" (1/1) ... [2020-10-29 08:02:22,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:02:22,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:02:22,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:02:22,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:02:22,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:22" (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 08:02:22,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:02:22,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:02:22,948 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:02:22,948 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:02:22,948 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:02:22,948 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:02:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:02:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:02:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:02:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:02:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:02:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:02:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:02:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:02:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:02:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:02:22,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:02:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:02:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:02:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:02:22,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:02:26,267 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:02:26,268 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:02:26,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:02:26 BoogieIcfgContainer [2020-10-29 08:02:26,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:02:26,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:02:26,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:02:26,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:02:26,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:02:21" (1/3) ... [2020-10-29 08:02:26,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1237c7c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:02:26, skipping insertion in model container [2020-10-29 08:02:26,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:02:22" (2/3) ... [2020-10-29 08:02:26,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1237c7c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:02:26, skipping insertion in model container [2020-10-29 08:02:26,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:02:26" (3/3) ... [2020-10-29 08:02:26,281 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label29.c [2020-10-29 08:02:26,295 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:02:26,302 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:02:26,317 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:02:26,350 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:02:26,350 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:02:26,351 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:02:26,351 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:02:26,351 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:02:26,351 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:02:26,351 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:02:26,351 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:02:26,385 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 08:02:26,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-29 08:02:26,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:26,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:02:26,396 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:26,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:26,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1859974700, now seen corresponding path program 1 times [2020-10-29 08:02:26,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:26,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265238003] [2020-10-29 08:02:26,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:26,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:27,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:27,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-29 08:02:27,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:27,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 560 [2020-10-29 08:02:27,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:27,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:27,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:02:27,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:02:27,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-29 08:02:27,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 08:02:27,519 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 08:02:27,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:27,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:27,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:27,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:27,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:27,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:02:27,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:27,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:27,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:27,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:27,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:02:27,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:02:27,605 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 08:02:27,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265238003] [2020-10-29 08:02:27,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:02:27,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 08:02:27,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630854577] [2020-10-29 08:02:27,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:02:27,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:27,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:02:27,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:02:27,640 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 5 states. [2020-10-29 08:02:35,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:35,168 INFO L93 Difference]: Finished difference Result 1520 states and 2855 transitions. [2020-10-29 08:02:35,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 08:02:35,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-10-29 08:02:35,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:35,196 INFO L225 Difference]: With dead ends: 1520 [2020-10-29 08:02:35,196 INFO L226 Difference]: Without dead ends: 1039 [2020-10-29 08:02:35,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:35,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2020-10-29 08:02:35,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1035. [2020-10-29 08:02:35,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2020-10-29 08:02:35,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1486 transitions. [2020-10-29 08:02:35,345 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1486 transitions. Word has length 53 [2020-10-29 08:02:35,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:35,345 INFO L481 AbstractCegarLoop]: Abstraction has 1035 states and 1486 transitions. [2020-10-29 08:02:35,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:02:35,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1486 transitions. [2020-10-29 08:02:35,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-29 08:02:35,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:35,352 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:02:35,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:02:35,353 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:35,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:35,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1906577101, now seen corresponding path program 1 times [2020-10-29 08:02:35,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:35,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [689586702] [2020-10-29 08:02:35,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:35,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:35,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:36,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:36,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 08:02:36,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:02:36,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1485 [2020-10-29 08:02:36,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:36,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:36,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:02:36,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:02:36,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 08:02:36,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:02:37,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:37,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:37,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:37,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:37,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:37,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:02:37,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:37,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:37,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:37,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:37,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:02:37,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:02:37,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:37,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:37,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:37,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 08:02:37,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:37,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-29 08:02:37,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:37,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:37,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:37,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:37,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 08:02:37,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:02:37,312 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:02:37,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [689586702] [2020-10-29 08:02:37,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:02:37,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-29 08:02:37,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130088865] [2020-10-29 08:02:37,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:02:37,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:37,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:02:37,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:02:37,316 INFO L87 Difference]: Start difference. First operand 1035 states and 1486 transitions. Second operand 8 states. [2020-10-29 08:02:45,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:45,288 INFO L93 Difference]: Finished difference Result 4148 states and 6100 transitions. [2020-10-29 08:02:45,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 08:02:45,289 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 129 [2020-10-29 08:02:45,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:45,318 INFO L225 Difference]: With dead ends: 4148 [2020-10-29 08:02:45,318 INFO L226 Difference]: Without dead ends: 3119 [2020-10-29 08:02:45,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-29 08:02:45,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3119 states. [2020-10-29 08:02:45,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3119 to 3103. [2020-10-29 08:02:45,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3103 states. [2020-10-29 08:02:45,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4163 transitions. [2020-10-29 08:02:45,458 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4163 transitions. Word has length 129 [2020-10-29 08:02:45,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:45,458 INFO L481 AbstractCegarLoop]: Abstraction has 3103 states and 4163 transitions. [2020-10-29 08:02:45,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:02:45,459 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4163 transitions. [2020-10-29 08:02:45,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-29 08:02:45,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:45,465 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:02:45,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:02:45,466 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:45,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:45,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1324081796, now seen corresponding path program 1 times [2020-10-29 08:02:45,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:45,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1058032081] [2020-10-29 08:02:45,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:45,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:45,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:45,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:46,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:47,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:48,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:50,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:50,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-10-29 08:02:50,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:02:50,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4883 [2020-10-29 08:02:50,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:50,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:50,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:02:50,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:02:50,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-29 08:02:50,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 08:02:50,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:02:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:50,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:50,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:50,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:02:50,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:50,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:02:50,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:50,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:50,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:50,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:50,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:02:50,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:02:50,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:02:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:50,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:50,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:50,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:50,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:02:50,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:02:50,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-29 08:02:50,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:50,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:50,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:02:50,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:02:50,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:02:50,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:02:50,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:02:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:50,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:51,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:02:51,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 08:02:51,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:02:51,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 08:02:51,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:02:51,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:02:51,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:02:51,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:02:51,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 08:02:51,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:02:51,201 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 167 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 08:02:51,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1058032081] [2020-10-29 08:02:51,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:02:51,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:02:51,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096935071] [2020-10-29 08:02:51,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:02:51,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:02:51,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:02:51,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:02:51,211 INFO L87 Difference]: Start difference. First operand 3103 states and 4163 transitions. Second operand 7 states. [2020-10-29 08:02:56,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:02:56,857 INFO L93 Difference]: Finished difference Result 7290 states and 10188 transitions. [2020-10-29 08:02:56,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:02:56,858 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 227 [2020-10-29 08:02:56,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:02:56,885 INFO L225 Difference]: With dead ends: 7290 [2020-10-29 08:02:56,885 INFO L226 Difference]: Without dead ends: 4193 [2020-10-29 08:02:56,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:02:56,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4193 states. [2020-10-29 08:02:57,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4193 to 3808. [2020-10-29 08:02:57,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3808 states. [2020-10-29 08:02:57,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 5131 transitions. [2020-10-29 08:02:57,034 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 5131 transitions. Word has length 227 [2020-10-29 08:02:57,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:02:57,035 INFO L481 AbstractCegarLoop]: Abstraction has 3808 states and 5131 transitions. [2020-10-29 08:02:57,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:02:57,035 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 5131 transitions. [2020-10-29 08:02:57,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2020-10-29 08:02:57,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:02:57,045 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:02:57,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:02:57,045 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:02:57,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:02:57,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1992431299, now seen corresponding path program 1 times [2020-10-29 08:02:57,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:02:57,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170554712] [2020-10-29 08:02:57,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:02:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:02:57,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:57,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:57,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:57,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:02:59,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:02,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:02,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 410 [2020-10-29 08:03:02,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:03:02,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-29 08:03:02,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:02,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:02,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:03:02,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-29 08:03:02,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:03:02,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:02,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:02,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:02,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:02,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:02,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:02,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:03:02,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:02,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:02,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:02,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:02,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:02,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:02,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:02,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:02,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:02,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:03:02,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:02,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 08:03:02,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:02,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:02,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:02,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:02,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:03:02,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:02,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:03:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:02,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:02,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:02,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:02,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:03:02,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:03:02,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-29 08:03:02,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:02,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:02,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:02,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:02,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 08:03:02,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:02,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-29 08:03:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:02,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:03,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:03,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:03:03,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:03,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-29 08:03:03,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:03,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:03,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:03,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:03,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:03:03,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:03,418 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 311 proven. 6 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-29 08:03:03,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170554712] [2020-10-29 08:03:03,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:03:03,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:03:03,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35108872] [2020-10-29 08:03:03,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:03,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:03,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:03,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:03,421 INFO L87 Difference]: Start difference. First operand 3808 states and 5131 transitions. Second operand 7 states. [2020-10-29 08:03:09,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:09,121 INFO L93 Difference]: Finished difference Result 9734 states and 13496 transitions. [2020-10-29 08:03:09,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:03:09,124 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 394 [2020-10-29 08:03:09,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:09,155 INFO L225 Difference]: With dead ends: 9734 [2020-10-29 08:03:09,155 INFO L226 Difference]: Without dead ends: 4854 [2020-10-29 08:03:09,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:03:09,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4854 states. [2020-10-29 08:03:09,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4854 to 4491. [2020-10-29 08:03:09,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4491 states. [2020-10-29 08:03:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4491 states to 4491 states and 5056 transitions. [2020-10-29 08:03:09,324 INFO L78 Accepts]: Start accepts. Automaton has 4491 states and 5056 transitions. Word has length 394 [2020-10-29 08:03:09,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:09,325 INFO L481 AbstractCegarLoop]: Abstraction has 4491 states and 5056 transitions. [2020-10-29 08:03:09,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:09,325 INFO L276 IsEmpty]: Start isEmpty. Operand 4491 states and 5056 transitions. [2020-10-29 08:03:09,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2020-10-29 08:03:09,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:09,346 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:03:09,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:03:09,350 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:09,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:09,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1839633557, now seen corresponding path program 1 times [2020-10-29 08:03:09,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:09,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056736224] [2020-10-29 08:03:09,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:09,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:09,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:09,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:09,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:14,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:14,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 634 [2020-10-29 08:03:14,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:03:14,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5076 [2020-10-29 08:03:14,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:14,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:14,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:14,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 358 [2020-10-29 08:03:14,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 08:03:14,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:14,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:14,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:14,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:14,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:14,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:14,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:03:14,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:14,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:14,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:14,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:14,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:14,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:14,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:14,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:14,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:14,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:03:14,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:14,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:03:14,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:14,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:14,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:14,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:14,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 08:03:14,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:14,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:14,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:14,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:03:14,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:14,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 08:03:14,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:14,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:14,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:14,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:14,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-29 08:03:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:14,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:14,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:14,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:03:14,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:14,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-29 08:03:14,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:14,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:14,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:14,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:14,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:03:14,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:15,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-29 08:03:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:15,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:15,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:15,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:03:15,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:15,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-29 08:03:15,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:15,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:15,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:15,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:15,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 08:03:15,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:15,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-29 08:03:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:15,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:15,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:15,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 08:03:15,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:15,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:03:15,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:15,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:15,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-29 08:03:15,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:15,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:16,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1281 backedges. 558 proven. 106 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2020-10-29 08:03:16,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056736224] [2020-10-29 08:03:16,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:03:16,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:03:16,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726200022] [2020-10-29 08:03:16,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:16,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:16,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:16,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:16,091 INFO L87 Difference]: Start difference. First operand 4491 states and 5056 transitions. Second operand 7 states. [2020-10-29 08:03:20,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:20,272 INFO L93 Difference]: Finished difference Result 9001 states and 10156 transitions. [2020-10-29 08:03:20,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:03:20,273 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 614 [2020-10-29 08:03:20,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:20,295 INFO L225 Difference]: With dead ends: 9001 [2020-10-29 08:03:20,295 INFO L226 Difference]: Without dead ends: 4516 [2020-10-29 08:03:20,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:03:20,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4516 states. [2020-10-29 08:03:20,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4516 to 4502. [2020-10-29 08:03:20,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4502 states. [2020-10-29 08:03:20,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4502 states to 4502 states and 4863 transitions. [2020-10-29 08:03:20,437 INFO L78 Accepts]: Start accepts. Automaton has 4502 states and 4863 transitions. Word has length 614 [2020-10-29 08:03:20,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:20,438 INFO L481 AbstractCegarLoop]: Abstraction has 4502 states and 4863 transitions. [2020-10-29 08:03:20,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:20,438 INFO L276 IsEmpty]: Start isEmpty. Operand 4502 states and 4863 transitions. [2020-10-29 08:03:20,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2020-10-29 08:03:20,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:20,470 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:03:20,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:03:20,470 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:20,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:20,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1870200033, now seen corresponding path program 1 times [2020-10-29 08:03:20,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:20,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032114810] [2020-10-29 08:03:20,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:20,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:20,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:21,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:21,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:22,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:24,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:25,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:25,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 752 [2020-10-29 08:03:25,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:03:25,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5084 [2020-10-29 08:03:25,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:25,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:03:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:03:25,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:03:25,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:26,025 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-29 08:03:26,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:26,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:26,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:26,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:26,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:26,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:03:26,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:26,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:26,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:26,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:26,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:03:26,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:26,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:26,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:26,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:26,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:03:26,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:26,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 413 [2020-10-29 08:03:26,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:26,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:26,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:26,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:26,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:03:26,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:27,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:03:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:27,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:27,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:27,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:03:27,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:27,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:03:27,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:27,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:27,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:27,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:03:27,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:27,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:03:27,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 08:03:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:27,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:27,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:27,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:03:27,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:27,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-29 08:03:27,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:27,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:27,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:27,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:03:27,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:27,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:27,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:03:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:27,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:27,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:27,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:03:27,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:27,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:03:27,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:27,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:27,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:27,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:03:27,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:27,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:03:27,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 580 [2020-10-29 08:03:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:27,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:27,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:27,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 08:03:27,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:27,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 08:03:27,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:27,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:27,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-29 08:03:27,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:27,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:28,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1186 backedges. 225 proven. 410 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2020-10-29 08:03:28,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032114810] [2020-10-29 08:03:28,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:03:28,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:03:28,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944510553] [2020-10-29 08:03:28,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:28,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:28,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:28,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:28,432 INFO L87 Difference]: Start difference. First operand 4502 states and 4863 transitions. Second operand 7 states. [2020-10-29 08:03:31,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:31,736 INFO L93 Difference]: Finished difference Result 9014 states and 9744 transitions. [2020-10-29 08:03:31,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:03:31,737 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 732 [2020-10-29 08:03:31,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:31,758 INFO L225 Difference]: With dead ends: 9014 [2020-10-29 08:03:31,759 INFO L226 Difference]: Without dead ends: 4518 [2020-10-29 08:03:31,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:03:31,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2020-10-29 08:03:31,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 4504. [2020-10-29 08:03:31,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4504 states. [2020-10-29 08:03:31,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4504 states to 4504 states and 4865 transitions. [2020-10-29 08:03:31,878 INFO L78 Accepts]: Start accepts. Automaton has 4504 states and 4865 transitions. Word has length 732 [2020-10-29 08:03:31,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:31,879 INFO L481 AbstractCegarLoop]: Abstraction has 4504 states and 4865 transitions. [2020-10-29 08:03:31,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:31,879 INFO L276 IsEmpty]: Start isEmpty. Operand 4504 states and 4865 transitions. [2020-10-29 08:03:31,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2020-10-29 08:03:31,894 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:31,895 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:03:31,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:03:31,896 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:31,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:31,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1782864143, now seen corresponding path program 1 times [2020-10-29 08:03:31,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:31,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422269203] [2020-10-29 08:03:31,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:32,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:32,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:32,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:37,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:37,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 836 [2020-10-29 08:03:37,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:03:37,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-29 08:03:37,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:37,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:37,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:37,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 414 [2020-10-29 08:03:37,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 08:03:37,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:37,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:37,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:37,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:37,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:37,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:37,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:03:37,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:37,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:37,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:37,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:37,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:37,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:37,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:37,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:03:37,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:37,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-29 08:03:37,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:37,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:37,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:37,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:37,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:37,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:37,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:03:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:37,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:37,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:37,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 08:03:37,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:37,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-29 08:03:37,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:37,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:37,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:37,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:37,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-29 08:03:37,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:37,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-29 08:03:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:37,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:37,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:37,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:03:37,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:37,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-29 08:03:37,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:37,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:37,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:37,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:37,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:03:37,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:37,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-29 08:03:37,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:38,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:38,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:38,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:03:38,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:38,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:03:38,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:38,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:38,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:38,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:03:38,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:38,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:38,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2020-10-29 08:03:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:38,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:38,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:38,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 08:03:38,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:38,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:03:38,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:38,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:38,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:38,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-29 08:03:38,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:38,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:38,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1434 backedges. 528 proven. 213 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2020-10-29 08:03:38,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422269203] [2020-10-29 08:03:38,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:03:38,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:03:38,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682790353] [2020-10-29 08:03:38,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:03:38,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:38,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:03:38,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:03:38,600 INFO L87 Difference]: Start difference. First operand 4504 states and 4865 transitions. Second operand 7 states. [2020-10-29 08:03:45,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:03:45,019 INFO L93 Difference]: Finished difference Result 10383 states and 11362 transitions. [2020-10-29 08:03:45,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:03:45,022 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 816 [2020-10-29 08:03:45,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:03:45,062 INFO L225 Difference]: With dead ends: 10383 [2020-10-29 08:03:45,063 INFO L226 Difference]: Without dead ends: 5885 [2020-10-29 08:03:45,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:03:45,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5885 states. [2020-10-29 08:03:45,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5885 to 5869. [2020-10-29 08:03:45,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5869 states. [2020-10-29 08:03:45,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5869 states to 5869 states and 6310 transitions. [2020-10-29 08:03:45,225 INFO L78 Accepts]: Start accepts. Automaton has 5869 states and 6310 transitions. Word has length 816 [2020-10-29 08:03:45,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:03:45,226 INFO L481 AbstractCegarLoop]: Abstraction has 5869 states and 6310 transitions. [2020-10-29 08:03:45,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:03:45,226 INFO L276 IsEmpty]: Start isEmpty. Operand 5869 states and 6310 transitions. [2020-10-29 08:03:45,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 984 [2020-10-29 08:03:45,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:03:45,252 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:03:45,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:03:45,252 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:03:45,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:03:45,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1969262150, now seen corresponding path program 1 times [2020-10-29 08:03:45,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:03:45,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689452143] [2020-10-29 08:03:45,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:03:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:45,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:45,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:50,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:50,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1005 [2020-10-29 08:03:50,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:03:50,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5154 [2020-10-29 08:03:50,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:50,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:50,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:50,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 602 [2020-10-29 08:03:50,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:03:50,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:51,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:03:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:51,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:51,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:51,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:03:51,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:51,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:03:51,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:51,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:51,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:51,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:51,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:51,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:51,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:03:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:51,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:51,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:51,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:03:51,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:51,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:03:51,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:51,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:51,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:51,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:51,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:51,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:51,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 08:03:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:51,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:51,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:51,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:03:51,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:51,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-29 08:03:51,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:51,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:51,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:51,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:51,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:51,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:51,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2020-10-29 08:03:51,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:51,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:51,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:51,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:03:51,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:51,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:03:51,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:51,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:51,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:51,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:51,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:51,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:51,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2020-10-29 08:03:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:51,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:51,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:51,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:03:51,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:51,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-29 08:03:51,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:51,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:03:51,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:03:51,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:03:51,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:51,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 594 [2020-10-29 08:03:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:51,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:52,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:52,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:03:52,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:52,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 638 [2020-10-29 08:03:52,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:52,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:52,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:03:52,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:03:52,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:03:52,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:52,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 867 [2020-10-29 08:03:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:03:52,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:03:52,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:03:52,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:03:52,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:03:52,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:03:52,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:03:52,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:03:52,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:03:52,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 08:03:52,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:03:52,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:03:53,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1931 backedges. 875 proven. 70 refuted. 0 times theorem prover too weak. 986 trivial. 0 not checked. [2020-10-29 08:03:53,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689452143] [2020-10-29 08:03:53,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:03:53,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:03:53,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80258064] [2020-10-29 08:03:53,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:03:53,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:03:53,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:03:53,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:03:53,652 INFO L87 Difference]: Start difference. First operand 5869 states and 6310 transitions. Second operand 8 states. [2020-10-29 08:04:00,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:00,315 INFO L93 Difference]: Finished difference Result 14149 states and 15246 transitions. [2020-10-29 08:04:00,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 08:04:00,317 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 983 [2020-10-29 08:04:00,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:00,346 INFO L225 Difference]: With dead ends: 14149 [2020-10-29 08:04:00,347 INFO L226 Difference]: Without dead ends: 8286 [2020-10-29 08:04:00,361 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-29 08:04:00,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8286 states. [2020-10-29 08:04:00,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8286 to 8270. [2020-10-29 08:04:00,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8270 states. [2020-10-29 08:04:00,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8270 states to 8270 states and 8831 transitions. [2020-10-29 08:04:00,542 INFO L78 Accepts]: Start accepts. Automaton has 8270 states and 8831 transitions. Word has length 983 [2020-10-29 08:04:00,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:00,544 INFO L481 AbstractCegarLoop]: Abstraction has 8270 states and 8831 transitions. [2020-10-29 08:04:00,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:04:00,544 INFO L276 IsEmpty]: Start isEmpty. Operand 8270 states and 8831 transitions. [2020-10-29 08:04:00,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1011 [2020-10-29 08:04:00,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:00,569 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:00,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:04:00,569 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:00,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:00,570 INFO L82 PathProgramCache]: Analyzing trace with hash 113023401, now seen corresponding path program 1 times [2020-10-29 08:04:00,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:00,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389107744] [2020-10-29 08:04:00,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:00,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:01,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:01,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:01,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:02,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:05,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:05,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1034 [2020-10-29 08:04:05,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:04:05,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-29 08:04:05,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:05,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:05,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:05,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:04:05,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-29 08:04:05,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:05,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:05,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:05,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:05,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:05,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:05,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:04:05,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:05,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:05,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:05,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:05,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:05,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:05,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:05,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:06,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:06,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:04:06,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:06,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 08:04:06,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:06,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:06,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:06,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:06,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-29 08:04:06,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:06,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 08:04:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:06,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:06,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:06,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-29 08:04:06,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:06,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 283 [2020-10-29 08:04:06,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:06,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:06,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:06,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:06,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-29 08:04:06,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:06,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-29 08:04:06,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:06,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:06,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:06,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:04:06,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:06,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 08:04:06,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:06,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:06,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:06,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-29 08:04:06,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:06,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:06,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-29 08:04:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:06,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:06,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:06,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:04:06,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:06,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-29 08:04:06,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:06,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:06,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:06,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:04:06,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:06,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:06,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 606 [2020-10-29 08:04:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:06,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:06,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:06,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:04:06,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:06,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-29 08:04:06,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:06,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:06,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:06,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:04:06,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:06,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:06,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2020-10-29 08:04:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:07,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:07,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:07,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:04:07,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:07,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:04:07,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:07,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:07,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:07,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:04:07,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:07,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:07,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 858 [2020-10-29 08:04:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:07,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:07,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:07,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 08:04:07,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:07,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 08:04:07,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:07,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:07,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:07,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-29 08:04:07,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:07,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:07,914 INFO L134 CoverageAnalysis]: Checked inductivity of 2723 backedges. 432 proven. 625 refuted. 0 times theorem prover too weak. 1666 trivial. 0 not checked. [2020-10-29 08:04:07,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389107744] [2020-10-29 08:04:07,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:07,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:04:07,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253827318] [2020-10-29 08:04:07,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:04:07,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:07,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:04:07,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:04:07,918 INFO L87 Difference]: Start difference. First operand 8270 states and 8831 transitions. Second operand 7 states. [2020-10-29 08:04:12,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:12,013 INFO L93 Difference]: Finished difference Result 21642 states and 23376 transitions. [2020-10-29 08:04:12,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:04:12,014 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1010 [2020-10-29 08:04:12,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:12,052 INFO L225 Difference]: With dead ends: 21642 [2020-10-29 08:04:12,052 INFO L226 Difference]: Without dead ends: 13378 [2020-10-29 08:04:12,073 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:04:12,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13378 states. [2020-10-29 08:04:12,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13378 to 12018. [2020-10-29 08:04:12,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12018 states. [2020-10-29 08:04:12,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12018 states to 12018 states and 13015 transitions. [2020-10-29 08:04:12,320 INFO L78 Accepts]: Start accepts. Automaton has 12018 states and 13015 transitions. Word has length 1010 [2020-10-29 08:04:12,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:12,321 INFO L481 AbstractCegarLoop]: Abstraction has 12018 states and 13015 transitions. [2020-10-29 08:04:12,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:04:12,321 INFO L276 IsEmpty]: Start isEmpty. Operand 12018 states and 13015 transitions. [2020-10-29 08:04:12,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1188 [2020-10-29 08:04:12,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:12,457 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:04:12,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:04:12,458 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:12,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:12,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1092351272, now seen corresponding path program 1 times [2020-10-29 08:04:12,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:12,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1935306904] [2020-10-29 08:04:12,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:12,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:13,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:13,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:17,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:17,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1213 [2020-10-29 08:04:17,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:04:17,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5162 [2020-10-29 08:04:17,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:17,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:17,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:17,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-29 08:04:17,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-29 08:04:17,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:18,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:18,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:18,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:18,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:18,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:18,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:04:18,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:18,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:18,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:18,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:18,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:18,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:18,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:18,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:18,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:18,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:04:18,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:18,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-29 08:04:18,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:18,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:18,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:18,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:18,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-29 08:04:18,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:18,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:04:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:18,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:18,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:18,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:04:18,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:18,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-29 08:04:18,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:18,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:18,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:18,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:18,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-29 08:04:18,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:18,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:04:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:18,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:18,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:18,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:04:18,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:18,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:04:18,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:18,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:18,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:18,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-29 08:04:18,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:18,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:18,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:04:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:18,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:18,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:18,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:04:18,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:18,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 08:04:18,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:18,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:18,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:18,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-29 08:04:18,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:18,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:18,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:04:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:18,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:18,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:18,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:04:18,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:18,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:04:18,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:18,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:18,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:18,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:04:18,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:18,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:18,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 752 [2020-10-29 08:04:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:18,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:18,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:18,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:04:18,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:18,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:04:18,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:18,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:18,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:18,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:04:18,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:18,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:18,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 894 [2020-10-29 08:04:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:18,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:19,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:19,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:04:19,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:19,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-29 08:04:19,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:19,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:19,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:19,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:04:19,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:19,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:19,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2020-10-29 08:04:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:19,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:19,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:19,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:04:19,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:19,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-29 08:04:19,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:19,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:19,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:19,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:04:19,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:19,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:20,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3583 backedges. 543 proven. 717 refuted. 0 times theorem prover too weak. 2323 trivial. 0 not checked. [2020-10-29 08:04:20,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1935306904] [2020-10-29 08:04:20,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:20,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:04:20,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115406822] [2020-10-29 08:04:20,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:04:20,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:20,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:04:20,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:04:20,396 INFO L87 Difference]: Start difference. First operand 12018 states and 13015 transitions. Second operand 7 states. [2020-10-29 08:04:24,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:24,907 INFO L93 Difference]: Finished difference Result 25384 states and 27507 transitions. [2020-10-29 08:04:24,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:04:24,908 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1187 [2020-10-29 08:04:24,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:24,966 INFO L225 Difference]: With dead ends: 25384 [2020-10-29 08:04:24,966 INFO L226 Difference]: Without dead ends: 13709 [2020-10-29 08:04:24,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:04:25,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13709 states. [2020-10-29 08:04:25,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13709 to 13033. [2020-10-29 08:04:25,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13033 states. [2020-10-29 08:04:25,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13033 states to 13033 states and 14075 transitions. [2020-10-29 08:04:25,270 INFO L78 Accepts]: Start accepts. Automaton has 13033 states and 14075 transitions. Word has length 1187 [2020-10-29 08:04:25,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:25,271 INFO L481 AbstractCegarLoop]: Abstraction has 13033 states and 14075 transitions. [2020-10-29 08:04:25,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:04:25,271 INFO L276 IsEmpty]: Start isEmpty. Operand 13033 states and 14075 transitions. [2020-10-29 08:04:25,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1249 [2020-10-29 08:04:25,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:25,310 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:04:25,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:04:25,310 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:25,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:25,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1760200586, now seen corresponding path program 1 times [2020-10-29 08:04:25,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:25,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824657386] [2020-10-29 08:04:25,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:25,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:25,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:26,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:30,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:30,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1274 [2020-10-29 08:04:30,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:04:30,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-29 08:04:30,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:30,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:30,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:30,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 967 [2020-10-29 08:04:30,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 08:04:30,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:30,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:30,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:30,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:30,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:30,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:30,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:04:30,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:30,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:30,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:30,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:30,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:30,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:30,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:30,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:30,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:30,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:04:30,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:30,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:04:30,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:30,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:30,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:30,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:30,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:30,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:30,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:04:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:30,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:30,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:30,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:04:30,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:30,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 08:04:30,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:30,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:30,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:30,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:30,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:30,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:31,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:04:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:31,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:31,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:31,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:04:31,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:31,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:04:31,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:31,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:31,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:31,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:31,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:31,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:31,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:04:31,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:31,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:31,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:31,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:04:31,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:31,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:04:31,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:31,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:31,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:31,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:31,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:31,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:31,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-29 08:04:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:31,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:31,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:31,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:04:31,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:31,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:04:31,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:31,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:31,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:31,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:31,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:31,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:31,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 813 [2020-10-29 08:04:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:31,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:31,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:31,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:04:31,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:31,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-29 08:04:31,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:31,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:31,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:31,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:31,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-29 08:04:31,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:04:31,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2020-10-29 08:04:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:31,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:31,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:31,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:04:31,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:31,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-29 08:04:31,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:31,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:31,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:31,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:31,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 08:04:31,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:31,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1065 [2020-10-29 08:04:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:31,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:31,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:31,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:04:31,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:31,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-29 08:04:31,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:31,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:31,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:31,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:04:31,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:31,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:33,214 INFO L134 CoverageAnalysis]: Checked inductivity of 3644 backedges. 1011 proven. 109 refuted. 0 times theorem prover too weak. 2524 trivial. 0 not checked. [2020-10-29 08:04:33,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824657386] [2020-10-29 08:04:33,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:33,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:04:33,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882635096] [2020-10-29 08:04:33,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:04:33,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:33,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:04:33,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:04:33,217 INFO L87 Difference]: Start difference. First operand 13033 states and 14075 transitions. Second operand 8 states. [2020-10-29 08:04:40,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:40,408 INFO L93 Difference]: Finished difference Result 28438 states and 30776 transitions. [2020-10-29 08:04:40,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:04:40,413 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1248 [2020-10-29 08:04:40,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:40,460 INFO L225 Difference]: With dead ends: 28438 [2020-10-29 08:04:40,461 INFO L226 Difference]: Without dead ends: 15748 [2020-10-29 08:04:40,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:04:40,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15748 states. [2020-10-29 08:04:40,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15748 to 15748. [2020-10-29 08:04:40,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15748 states. [2020-10-29 08:04:40,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15748 states to 15748 states and 16966 transitions. [2020-10-29 08:04:40,774 INFO L78 Accepts]: Start accepts. Automaton has 15748 states and 16966 transitions. Word has length 1248 [2020-10-29 08:04:40,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:40,776 INFO L481 AbstractCegarLoop]: Abstraction has 15748 states and 16966 transitions. [2020-10-29 08:04:40,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:04:40,776 INFO L276 IsEmpty]: Start isEmpty. Operand 15748 states and 16966 transitions. [2020-10-29 08:04:40,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1330 [2020-10-29 08:04:40,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:40,823 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 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 08:04:40,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:04:40,823 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:40,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:40,824 INFO L82 PathProgramCache]: Analyzing trace with hash 212886270, now seen corresponding path program 1 times [2020-10-29 08:04:40,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:40,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038167911] [2020-10-29 08:04:40,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:41,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:41,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:41,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:42,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:46,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:46,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1355 [2020-10-29 08:04:46,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:04:46,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-29 08:04:46,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:46,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:46,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:46,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 796 [2020-10-29 08:04:46,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-29 08:04:46,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:46,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:46,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:46,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:46,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:46,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:46,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:04:46,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:46,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:46,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:46,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:46,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:46,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:46,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:46,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:46,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:46,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:04:46,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:46,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 08:04:46,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:46,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:46,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:46,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:46,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:46,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:46,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:04:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:46,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:46,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:46,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:04:46,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:46,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:04:46,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:46,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:46,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:46,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:46,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:46,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:46,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:04:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:46,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:46,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:46,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:04:46,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:46,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:04:46,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:46,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:46,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:46,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:46,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:46,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:46,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:04:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:46,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:46,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:46,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:04:46,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:46,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:04:46,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:46,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:46,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:46,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:46,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:46,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:46,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-29 08:04:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:46,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:46,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:46,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:04:46,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:46,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 08:04:46,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:46,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:46,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:04:46,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:46,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:04:46,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:46,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-29 08:04:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:46,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:47,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:47,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 08:04:47,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:47,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-29 08:04:47,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:47,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:47,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:47,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:04:47,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-29 08:04:47,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:47,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1036 [2020-10-29 08:04:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:47,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:47,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:47,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:04:47,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:47,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:04:47,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:47,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:47,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:47,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:04:47,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:47,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:47,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1146 [2020-10-29 08:04:47,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:47,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:47,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:47,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:04:47,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:47,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 08:04:47,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:47,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:47,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:47,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:04:47,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:47,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:48,792 INFO L134 CoverageAnalysis]: Checked inductivity of 3704 backedges. 1183 proven. 244 refuted. 0 times theorem prover too weak. 2277 trivial. 0 not checked. [2020-10-29 08:04:48,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038167911] [2020-10-29 08:04:48,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:04:48,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:04:48,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047884350] [2020-10-29 08:04:48,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:04:48,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:04:48,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:04:48,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:04:48,795 INFO L87 Difference]: Start difference. First operand 15748 states and 16966 transitions. Second operand 7 states. [2020-10-29 08:04:53,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:04:53,401 INFO L93 Difference]: Finished difference Result 32846 states and 35357 transitions. [2020-10-29 08:04:53,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:04:53,403 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1329 [2020-10-29 08:04:53,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:04:53,453 INFO L225 Difference]: With dead ends: 32846 [2020-10-29 08:04:53,453 INFO L226 Difference]: Without dead ends: 17441 [2020-10-29 08:04:53,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:04:53,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17441 states. [2020-10-29 08:04:53,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17441 to 17437. [2020-10-29 08:04:53,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17437 states. [2020-10-29 08:04:53,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17437 states to 17437 states and 18719 transitions. [2020-10-29 08:04:53,799 INFO L78 Accepts]: Start accepts. Automaton has 17437 states and 18719 transitions. Word has length 1329 [2020-10-29 08:04:53,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:04:53,801 INFO L481 AbstractCegarLoop]: Abstraction has 17437 states and 18719 transitions. [2020-10-29 08:04:53,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:04:53,801 INFO L276 IsEmpty]: Start isEmpty. Operand 17437 states and 18719 transitions. [2020-10-29 08:04:53,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1407 [2020-10-29 08:04:53,846 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:04:53,848 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:04:53,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:04:53,849 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:04:53,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:04:53,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1620762668, now seen corresponding path program 1 times [2020-10-29 08:04:53,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:04:53,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782452954] [2020-10-29 08:04:53,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:04:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:54,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:54,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:54,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:58,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:59,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:59,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1434 [2020-10-29 08:04:59,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:04:59,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-29 08:04:59,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:59,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:59,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:04:59,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1124 [2020-10-29 08:04:59,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:04:59,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:59,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:04:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:59,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:59,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:59,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:04:59,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:59,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:04:59,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:59,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:59,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:59,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:04:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:59,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:59,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:59,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:04:59,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:59,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:04:59,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:59,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:59,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:59,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:59,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:59,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:59,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:04:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:59,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:59,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:59,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:04:59,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:59,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 08:04:59,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:59,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:59,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:59,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:04:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:59,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:59,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:59,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:04:59,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:59,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:04:59,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:59,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:59,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:59,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:59,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:04:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:59,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:59,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:59,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:04:59,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:59,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:04:59,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:59,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:59,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:59,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:59,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:59,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:59,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-29 08:04:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:04:59,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:04:59,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:04:59,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:04:59,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:04:59,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:04:59,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:04:59,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:04:59,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:04:59,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:04:59,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:04:59,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:04:59,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-29 08:04:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:00,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:00,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:00,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-29 08:05:00,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:00,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-29 08:05:00,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:00,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:00,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:00,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:00,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 321 [2020-10-29 08:05:00,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:00,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:05:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:00,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:00,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:00,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 08:05:00,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:00,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-29 08:05:00,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:00,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:00,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:00,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:00,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 08:05:00,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:00,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1113 [2020-10-29 08:05:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:00,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:00,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:00,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:05:00,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:00,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 08:05:00,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:00,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:00,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:00,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:00,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 08:05:00,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:00,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1223 [2020-10-29 08:05:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:00,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:00,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:00,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:05:00,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:00,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:05:00,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:00,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:00,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:00,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-29 08:05:00,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:00,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:01,830 INFO L134 CoverageAnalysis]: Checked inductivity of 3704 backedges. 1011 proven. 109 refuted. 0 times theorem prover too weak. 2584 trivial. 0 not checked. [2020-10-29 08:05:01,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1782452954] [2020-10-29 08:05:01,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:01,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:05:01,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392039997] [2020-10-29 08:05:01,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:01,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:01,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:01,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:01,833 INFO L87 Difference]: Start difference. First operand 17437 states and 18719 transitions. Second operand 7 states. [2020-10-29 08:05:07,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:07,952 INFO L93 Difference]: Finished difference Result 35548 states and 38161 transitions. [2020-10-29 08:05:07,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:05:07,954 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1406 [2020-10-29 08:05:07,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:08,016 INFO L225 Difference]: With dead ends: 35548 [2020-10-29 08:05:08,016 INFO L226 Difference]: Without dead ends: 18454 [2020-10-29 08:05:08,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:05:08,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18454 states. [2020-10-29 08:05:08,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18454 to 18452. [2020-10-29 08:05:08,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18452 states. [2020-10-29 08:05:08,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18452 states to 18452 states and 19759 transitions. [2020-10-29 08:05:08,398 INFO L78 Accepts]: Start accepts. Automaton has 18452 states and 19759 transitions. Word has length 1406 [2020-10-29 08:05:08,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:08,401 INFO L481 AbstractCegarLoop]: Abstraction has 18452 states and 19759 transitions. [2020-10-29 08:05:08,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:05:08,401 INFO L276 IsEmpty]: Start isEmpty. Operand 18452 states and 19759 transitions. [2020-10-29 08:05:08,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1481 [2020-10-29 08:05:08,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:08,440 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:05:08,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:05:08,441 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:08,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:08,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1886121417, now seen corresponding path program 1 times [2020-10-29 08:05:08,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:08,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233409744] [2020-10-29 08:05:08,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:09,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:09,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:09,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:13,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:14,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:14,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1510 [2020-10-29 08:05:14,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:05:14,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5226 [2020-10-29 08:05:14,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:14,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:14,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:14,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1315 [2020-10-29 08:05:14,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-29 08:05:14,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:14,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:14,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:14,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:14,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:14,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:14,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:05:14,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:14,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:14,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:14,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:14,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:14,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:14,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:14,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:14,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:14,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:14,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:14,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 08:05:14,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:14,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:14,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:14,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:14,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:14,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:14,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:14,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:14,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:14,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:05:14,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:14,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-29 08:05:14,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:14,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:14,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:14,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:14,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:14,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:14,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:05:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:14,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:14,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:14,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:05:14,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:14,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:05:14,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:14,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:14,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:14,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:05:14,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:14,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:14,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:14,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:05:14,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:14,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 08:05:14,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:14,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:14,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:14,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:14,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:14,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:14,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-29 08:05:14,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:14,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:14,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:14,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:05:14,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:14,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:05:14,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:14,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:14,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:14,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:14,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:14,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:14,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-29 08:05:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:14,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:14,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:14,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-29 08:05:14,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:14,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 08:05:14,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:14,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:14,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:14,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:14,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:14,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:14,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:05:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:14,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:14,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:14,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 08:05:14,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:14,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:05:14,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:14,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:14,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:14,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:14,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:14,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:14,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1113 [2020-10-29 08:05:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:15,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:15,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:15,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 08:05:15,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:15,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 08:05:15,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:15,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:15,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:15,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:15,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:15,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:15,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1187 [2020-10-29 08:05:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:15,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:15,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:15,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:05:15,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:15,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 08:05:15,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:15,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:15,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:15,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:15,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:05:15,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:15,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 08:05:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:15,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:15,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:15,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 08:05:15,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:15,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 08:05:15,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:15,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:15,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:15,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:05:15,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-29 08:05:15,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:16,657 INFO L134 CoverageAnalysis]: Checked inductivity of 4337 backedges. 1328 proven. 2 refuted. 0 times theorem prover too weak. 3007 trivial. 0 not checked. [2020-10-29 08:05:16,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233409744] [2020-10-29 08:05:16,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:16,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:05:16,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405363613] [2020-10-29 08:05:16,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:05:16,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:16,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:05:16,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:16,660 INFO L87 Difference]: Start difference. First operand 18452 states and 19759 transitions. Second operand 7 states. [2020-10-29 08:05:21,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:21,282 INFO L93 Difference]: Finished difference Result 37943 states and 40828 transitions. [2020-10-29 08:05:21,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:05:21,283 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1480 [2020-10-29 08:05:21,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:21,333 INFO L225 Difference]: With dead ends: 37943 [2020-10-29 08:05:21,334 INFO L226 Difference]: Without dead ends: 18467 [2020-10-29 08:05:21,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:05:21,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18467 states. [2020-10-29 08:05:21,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18467 to 18429. [2020-10-29 08:05:21,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18429 states. [2020-10-29 08:05:21,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18429 states to 18429 states and 19353 transitions. [2020-10-29 08:05:21,690 INFO L78 Accepts]: Start accepts. Automaton has 18429 states and 19353 transitions. Word has length 1480 [2020-10-29 08:05:21,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:21,692 INFO L481 AbstractCegarLoop]: Abstraction has 18429 states and 19353 transitions. [2020-10-29 08:05:21,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:05:21,692 INFO L276 IsEmpty]: Start isEmpty. Operand 18429 states and 19353 transitions. [2020-10-29 08:05:21,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1497 [2020-10-29 08:05:21,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:21,729 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:05:21,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:05:21,729 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:21,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:21,730 INFO L82 PathProgramCache]: Analyzing trace with hash 174331957, now seen corresponding path program 1 times [2020-10-29 08:05:21,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:21,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168869257] [2020-10-29 08:05:21,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:22,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:22,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:22,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:25,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:27,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:27,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1520 [2020-10-29 08:05:27,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:05:27,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5074 [2020-10-29 08:05:27,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:27,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:27,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 08:05:27,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1003 [2020-10-29 08:05:27,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 513 [2020-10-29 08:05:27,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:27,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:27,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:27,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:27,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:27,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:27,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:05:27,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:27,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:27,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:27,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:27,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:27,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:27,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:27,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:27,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:27,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-29 08:05:27,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:27,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:27,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:27,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:27,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:27,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:27,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:27,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:27,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:27,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:05:27,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:27,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 08:05:27,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:27,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:27,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:27,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:27,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:27,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:27,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:05:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:27,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:27,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:27,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:05:27,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:27,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:05:27,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:27,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:27,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:27,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:27,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:27,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:27,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 719 [2020-10-29 08:05:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:28,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:28,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:28,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-29 08:05:28,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:28,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-10-29 08:05:28,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:28,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:28,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:28,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:28,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-29 08:05:28,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:28,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 995 [2020-10-29 08:05:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:28,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:28,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:29,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:29,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:05:29,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:05:29,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 718 [2020-10-29 08:05:29,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:29,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:29,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:29,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-29 08:05:29,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:05:29,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1268 [2020-10-29 08:05:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:29,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:29,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:29,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:29,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:05:29,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:05:29,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-29 08:05:29,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:29,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:29,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:29,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:29,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 08:05:29,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:05:29,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1380 [2020-10-29 08:05:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:29,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:29,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:29,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:29,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-29 08:05:29,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:05:29,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-29 08:05:29,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:29,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:29,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:29,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:29,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-29 08:05:29,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:30,833 INFO L134 CoverageAnalysis]: Checked inductivity of 3681 backedges. 371 proven. 19 refuted. 0 times theorem prover too weak. 3291 trivial. 0 not checked. [2020-10-29 08:05:30,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168869257] [2020-10-29 08:05:30,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:05:30,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 08:05:30,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542121267] [2020-10-29 08:05:30,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 08:05:30,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:05:30,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 08:05:30,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:05:30,836 INFO L87 Difference]: Start difference. First operand 18429 states and 19353 transitions. Second operand 6 states. [2020-10-29 08:05:34,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:05:34,917 INFO L93 Difference]: Finished difference Result 36176 states and 38018 transitions. [2020-10-29 08:05:34,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:05:34,921 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1496 [2020-10-29 08:05:34,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:05:34,962 INFO L225 Difference]: With dead ends: 36176 [2020-10-29 08:05:34,963 INFO L226 Difference]: Without dead ends: 18431 [2020-10-29 08:05:34,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:05:35,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18431 states. [2020-10-29 08:05:35,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18431 to 18092. [2020-10-29 08:05:35,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18092 states. [2020-10-29 08:05:35,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18092 states to 18092 states and 18940 transitions. [2020-10-29 08:05:35,287 INFO L78 Accepts]: Start accepts. Automaton has 18092 states and 18940 transitions. Word has length 1496 [2020-10-29 08:05:35,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:05:35,289 INFO L481 AbstractCegarLoop]: Abstraction has 18092 states and 18940 transitions. [2020-10-29 08:05:35,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 08:05:35,289 INFO L276 IsEmpty]: Start isEmpty. Operand 18092 states and 18940 transitions. [2020-10-29 08:05:35,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1561 [2020-10-29 08:05:35,327 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:05:35,328 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:05:35,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:05:35,328 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:05:35,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:05:35,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1266946665, now seen corresponding path program 1 times [2020-10-29 08:05:35,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:05:35,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064650364] [2020-10-29 08:05:35,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:05:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:35,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:36,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:36,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:39,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:40,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:40,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1590 [2020-10-29 08:05:40,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:05:40,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-29 08:05:40,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:40,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:40,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:05:40,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1315 [2020-10-29 08:05:40,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 221 [2020-10-29 08:05:40,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:40,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:05:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:40,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:40,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:40,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:05:40,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:40,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:05:40,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:40,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:40,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:40,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:40,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:40,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:40,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:05:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:40,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:40,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:40,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:05:40,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:40,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 08:05:40,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:40,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:40,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:40,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:40,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:40,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:41,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:05:41,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:41,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:41,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:41,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:05:41,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:41,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 08:05:41,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:41,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:41,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:41,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:41,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:41,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:41,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:05:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:41,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:41,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:41,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:05:41,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:41,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:05:41,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:41,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:41,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:41,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:41,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:41,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:41,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:05:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:41,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:41,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:41,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:05:41,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:41,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:05:41,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:41,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:41,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:41,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:41,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:41,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:41,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-29 08:05:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:41,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:41,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:41,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:05:41,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:41,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 08:05:41,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:41,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:41,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:41,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:41,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:41,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:41,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-29 08:05:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:41,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:41,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:41,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-29 08:05:41,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:41,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-29 08:05:41,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:41,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:41,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:41,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:41,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:41,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:41,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:05:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:41,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:41,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:41,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 08:05:41,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:41,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-29 08:05:41,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:41,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:41,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:41,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:41,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:41,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:41,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1113 [2020-10-29 08:05:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:41,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:41,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:41,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 08:05:41,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:41,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:05:41,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:41,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:41,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:05:41,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:41,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:05:41,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:41,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1187 [2020-10-29 08:05:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:41,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:05:41,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:05:41,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:05:41,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:05:41,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 08:05:41,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:05:41,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:05:41,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:05:41,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:05:41,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-29 08:05:41,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:05:41,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 08:05:41,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:05:41,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking...