/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/Problem10_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 06:40:01,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 06:40:01,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 06:40:01,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 06:40:01,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 06:40:01,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 06:40:01,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 06:40:01,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 06:40:01,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 06:40:01,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 06:40:01,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 06:40:01,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 06:40:01,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 06:40:01,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 06:40:01,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 06:40:01,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 06:40:01,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 06:40:01,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 06:40:01,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 06:40:01,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 06:40:01,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 06:40:01,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 06:40:01,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 06:40:01,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 06:40:01,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 06:40:01,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 06:40:01,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 06:40:01,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 06:40:01,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 06:40:01,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 06:40:01,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 06:40:01,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 06:40:01,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 06:40:01,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 06:40:01,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 06:40:01,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 06:40:01,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 06:40:01,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 06:40:01,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 06:40:01,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 06:40:01,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 06:40:01,906 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 06:40:01,960 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 06:40:01,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 06:40:01,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 06:40:01,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 06:40:01,966 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 06:40:01,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 06:40:01,966 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 06:40:01,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 06:40:01,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 06:40:01,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 06:40:01,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 06:40:01,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 06:40:01,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 06:40:01,968 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 06:40:01,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 06:40:01,969 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 06:40:01,969 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 06:40:01,969 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 06:40:01,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 06:40:01,970 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 06:40:01,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 06:40:01,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 06:40:01,970 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 06:40:01,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 06:40:01,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 06:40:01,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 06:40:01,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 06:40:01,971 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 06:40:01,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 06:40:01,972 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 06:40:02,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 06:40:02,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 06:40:02,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 06:40:02,395 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 06:40:02,396 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 06:40:02,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label34.c [2020-10-29 06:40:02,485 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7876f1e24/02ff92acbd0b44f9ab700b97e8397499/FLAGcffd46168 [2020-10-29 06:40:03,299 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 06:40:03,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label34.c [2020-10-29 06:40:03,312 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7876f1e24/02ff92acbd0b44f9ab700b97e8397499/FLAGcffd46168 [2020-10-29 06:40:03,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7876f1e24/02ff92acbd0b44f9ab700b97e8397499 [2020-10-29 06:40:03,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 06:40:03,544 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 06:40:03,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 06:40:03,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 06:40:03,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 06:40:03,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:40:03" (1/1) ... [2020-10-29 06:40:03,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14d4493e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:40:03, skipping insertion in model container [2020-10-29 06:40:03,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 06:40:03" (1/1) ... [2020-10-29 06:40:03,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 06:40:03,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 06:40:04,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:40:04,102 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 06:40:04,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 06:40:04,313 INFO L208 MainTranslator]: Completed translation [2020-10-29 06:40:04,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:40:04 WrapperNode [2020-10-29 06:40:04,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 06:40:04,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 06:40:04,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 06:40:04,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 06:40:04,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:40:04" (1/1) ... [2020-10-29 06:40:04,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:40:04" (1/1) ... [2020-10-29 06:40:04,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:40:04" (1/1) ... [2020-10-29 06:40:04,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:40:04" (1/1) ... [2020-10-29 06:40:04,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:40:04" (1/1) ... [2020-10-29 06:40:04,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:40:04" (1/1) ... [2020-10-29 06:40:04,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:40:04" (1/1) ... [2020-10-29 06:40:04,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 06:40:04,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 06:40:04,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 06:40:04,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 06:40:04,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:40:04" (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 06:40:04,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 06:40:04,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 06:40:04,590 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 06:40:04,590 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 06:40:04,590 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 06:40:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 06:40:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 06:40:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 06:40:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 06:40:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 06:40:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 06:40:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 06:40:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 06:40:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 06:40:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 06:40:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 06:40:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 06:40:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 06:40:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 06:40:05,823 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 06:40:05,824 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 06:40:05,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:40:05 BoogieIcfgContainer [2020-10-29 06:40:05,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 06:40:05,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 06:40:05,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 06:40:05,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 06:40:05,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 06:40:03" (1/3) ... [2020-10-29 06:40:05,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7a3ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:40:05, skipping insertion in model container [2020-10-29 06:40:05,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 06:40:04" (2/3) ... [2020-10-29 06:40:05,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7a3ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 06:40:05, skipping insertion in model container [2020-10-29 06:40:05,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 06:40:05" (3/3) ... [2020-10-29 06:40:05,836 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label34.c [2020-10-29 06:40:05,848 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 06:40:05,853 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 06:40:05,873 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 06:40:05,903 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 06:40:05,903 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 06:40:05,903 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 06:40:05,904 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 06:40:05,904 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 06:40:05,904 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 06:40:05,904 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 06:40:05,904 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 06:40:05,928 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-29 06:40:05,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-29 06:40:05,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:40:05,939 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:40:05,940 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:40:05,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:40:05,946 INFO L82 PathProgramCache]: Analyzing trace with hash -789810908, now seen corresponding path program 1 times [2020-10-29 06:40:05,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:40:05,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450880402] [2020-10-29 06:40:05,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:40:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:06,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:06,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:06,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 06:40:06,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:06,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 721 [2020-10-29 06:40:06,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:06,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:06,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:40:06,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:40:06,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 06:40:06,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 06:40:07,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:40:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:07,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:07,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:07,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:40:07,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:07,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 06:40:07,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:07,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:07,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:40:07,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:07,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:40:07,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:40:07,189 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 06:40:07,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1450880402] [2020-10-29 06:40:07,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 06:40:07,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 06:40:07,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638683381] [2020-10-29 06:40:07,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 06:40:07,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:40:07,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 06:40:07,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 06:40:07,222 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-29 06:40:09,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:40:09,138 INFO L93 Difference]: Finished difference Result 586 states and 1013 transitions. [2020-10-29 06:40:09,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:40:09,141 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 70 [2020-10-29 06:40:09,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:40:09,166 INFO L225 Difference]: With dead ends: 586 [2020-10-29 06:40:09,167 INFO L226 Difference]: Without dead ends: 303 [2020-10-29 06:40:09,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:40:09,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-29 06:40:09,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2020-10-29 06:40:09,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-10-29 06:40:09,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 424 transitions. [2020-10-29 06:40:09,282 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 424 transitions. Word has length 70 [2020-10-29 06:40:09,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:40:09,283 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 424 transitions. [2020-10-29 06:40:09,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 06:40:09,283 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 424 transitions. [2020-10-29 06:40:09,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-29 06:40:09,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:40:09,291 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, 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] [2020-10-29 06:40:09,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 06:40:09,292 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:40:09,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:40:09,292 INFO L82 PathProgramCache]: Analyzing trace with hash -2093267068, now seen corresponding path program 1 times [2020-10-29 06:40:09,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:40:09,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849423834] [2020-10-29 06:40:09,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:40:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:09,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:09,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:10,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:10,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:10,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-29 06:40:10,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:40:10,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1265 [2020-10-29 06:40:10,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:10,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:10,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 06:40:10,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 06:40:10,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 06:40:10,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:40:10,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:40:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:10,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:10,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:10,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:40:10,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:10,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-29 06:40:10,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:10,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:10,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:40:10,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:10,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 06:40:10,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:40:10,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:40:10,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:10,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:10,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:11,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:11,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 06:40:11,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:40:11,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-29 06:40:11,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:11,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:40:11,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:40:11,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 06:40:11,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:40:11,221 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 06:40:11,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849423834] [2020-10-29 06:40:11,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:40:11,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 06:40:11,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053927174] [2020-10-29 06:40:11,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:40:11,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:40:11,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:40:11,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:40:11,225 INFO L87 Difference]: Start difference. First operand 297 states and 424 transitions. Second operand 7 states. [2020-10-29 06:40:13,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:40:13,029 INFO L93 Difference]: Finished difference Result 900 states and 1309 transitions. [2020-10-29 06:40:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:40:13,035 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2020-10-29 06:40:13,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:40:13,040 INFO L225 Difference]: With dead ends: 900 [2020-10-29 06:40:13,041 INFO L226 Difference]: Without dead ends: 609 [2020-10-29 06:40:13,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:40:13,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-10-29 06:40:13,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 597. [2020-10-29 06:40:13,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-29 06:40:13,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 768 transitions. [2020-10-29 06:40:13,104 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 768 transitions. Word has length 142 [2020-10-29 06:40:13,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:40:13,106 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 768 transitions. [2020-10-29 06:40:13,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:40:13,107 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 768 transitions. [2020-10-29 06:40:13,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-29 06:40:13,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:40:13,117 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, 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] [2020-10-29 06:40:13,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 06:40:13,118 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:40:13,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:40:13,119 INFO L82 PathProgramCache]: Analyzing trace with hash -556375992, now seen corresponding path program 1 times [2020-10-29 06:40:13,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:40:13,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1462901284] [2020-10-29 06:40:13,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:40:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:13,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:13,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:13,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:13,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-29 06:40:13,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:40:13,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 574 [2020-10-29 06:40:13,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:13,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:13,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:40:13,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-29 06:40:13,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-29 06:40:13,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 06:40:13,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:40:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:13,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:13,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:13,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:40:13,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:13,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 06:40:13,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:13,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:13,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:40:13,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:13,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:40:13,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:13,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:40:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:14,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:14,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:14,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 06:40:14,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:14,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-29 06:40:14,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:14,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:14,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:40:14,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:14,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:40:14,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:14,143 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 61 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 06:40:14,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1462901284] [2020-10-29 06:40:14,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:40:14,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:40:14,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601708314] [2020-10-29 06:40:14,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:40:14,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:40:14,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:40:14,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:40:14,151 INFO L87 Difference]: Start difference. First operand 597 states and 768 transitions. Second operand 5 states. [2020-10-29 06:40:15,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:40:15,750 INFO L93 Difference]: Finished difference Result 1490 states and 2004 transitions. [2020-10-29 06:40:15,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:40:15,751 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-10-29 06:40:15,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:40:15,758 INFO L225 Difference]: With dead ends: 1490 [2020-10-29 06:40:15,758 INFO L226 Difference]: Without dead ends: 899 [2020-10-29 06:40:15,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:40:15,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2020-10-29 06:40:15,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 895. [2020-10-29 06:40:15,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2020-10-29 06:40:15,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1141 transitions. [2020-10-29 06:40:15,801 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1141 transitions. Word has length 149 [2020-10-29 06:40:15,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:40:15,802 INFO L481 AbstractCegarLoop]: Abstraction has 895 states and 1141 transitions. [2020-10-29 06:40:15,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:40:15,802 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1141 transitions. [2020-10-29 06:40:15,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-10-29 06:40:15,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:40:15,807 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:40:15,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 06:40:15,808 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:40:15,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:40:15,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1497363632, now seen corresponding path program 1 times [2020-10-29 06:40:15,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:40:15,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1145094749] [2020-10-29 06:40:15,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:40:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:15,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:16,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:16,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:17,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:18,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:18,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-10-29 06:40:18,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:40:18,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2141 [2020-10-29 06:40:18,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:18,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:18,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:40:18,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-29 06:40:18,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-29 06:40:18,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:40:18,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:40:18,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:18,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:18,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:18,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:40:18,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:18,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 06:40:18,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:18,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:18,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:40:18,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:18,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:40:18,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:18,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:40:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:18,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:18,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:18,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-29 06:40:18,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:18,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-29 06:40:18,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:18,255 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:18,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:40:18,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:18,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:40:18,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 06:40:18,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 06:40:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:18,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:18,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:18,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 06:40:18,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:18,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-29 06:40:18,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:18,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:18,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:40:18,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:40:18,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-29 06:40:18,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:18,557 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 194 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:40:18,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1145094749] [2020-10-29 06:40:18,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:40:18,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:40:18,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725564062] [2020-10-29 06:40:18,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:40:18,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:40:18,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:40:18,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:40:18,560 INFO L87 Difference]: Start difference. First operand 895 states and 1141 transitions. Second operand 7 states. [2020-10-29 06:40:20,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:40:20,601 INFO L93 Difference]: Finished difference Result 2110 states and 2709 transitions. [2020-10-29 06:40:20,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 06:40:20,602 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2020-10-29 06:40:20,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:40:20,610 INFO L225 Difference]: With dead ends: 2110 [2020-10-29 06:40:20,610 INFO L226 Difference]: Without dead ends: 923 [2020-10-29 06:40:20,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:40:20,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-10-29 06:40:20,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 899. [2020-10-29 06:40:20,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 899 states. [2020-10-29 06:40:20,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1037 transitions. [2020-10-29 06:40:20,678 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1037 transitions. Word has length 222 [2020-10-29 06:40:20,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:40:20,678 INFO L481 AbstractCegarLoop]: Abstraction has 899 states and 1037 transitions. [2020-10-29 06:40:20,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:40:20,679 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1037 transitions. [2020-10-29 06:40:20,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-29 06:40:20,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:40:20,686 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, 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, 1, 1, 1, 1, 1, 1, 1, 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 06:40:20,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 06:40:20,686 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:40:20,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:40:20,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1555690692, now seen corresponding path program 1 times [2020-10-29 06:40:20,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:40:20,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1288100474] [2020-10-29 06:40:20,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:40:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:20,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:20,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:21,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:22,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:22,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:22,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 06:40:22,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:40:22,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1639 [2020-10-29 06:40:22,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:22,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:22,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:40:22,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-29 06:40:22,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-29 06:40:22,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:22,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:40:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:22,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:22,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:22,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:40:22,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:22,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:40:22,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:22,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:22,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:40:22,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:22,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:40:22,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:22,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:40:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:22,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:22,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:22,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 06:40:22,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:22,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-29 06:40:22,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:22,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:22,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:40:22,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:22,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 06:40:22,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:22,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 06:40:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:22,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:22,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:22,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:22,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 06:40:22,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:40:22,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 190 [2020-10-29 06:40:22,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:22,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:22,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:40:22,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:40:22,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 06:40:22,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:22,981 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 127 proven. 62 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 06:40:22,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1288100474] [2020-10-29 06:40:22,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:40:22,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 06:40:22,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994845114] [2020-10-29 06:40:22,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 06:40:22,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:40:22,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 06:40:22,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:40:22,984 INFO L87 Difference]: Start difference. First operand 899 states and 1037 transitions. Second operand 6 states. [2020-10-29 06:40:24,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:40:24,581 INFO L93 Difference]: Finished difference Result 2108 states and 2458 transitions. [2020-10-29 06:40:24,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 06:40:24,582 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 230 [2020-10-29 06:40:24,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:40:24,588 INFO L225 Difference]: With dead ends: 2108 [2020-10-29 06:40:24,589 INFO L226 Difference]: Without dead ends: 1066 [2020-10-29 06:40:24,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:40:24,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-10-29 06:40:24,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1052. [2020-10-29 06:40:24,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2020-10-29 06:40:24,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1194 transitions. [2020-10-29 06:40:24,634 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1194 transitions. Word has length 230 [2020-10-29 06:40:24,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:40:24,635 INFO L481 AbstractCegarLoop]: Abstraction has 1052 states and 1194 transitions. [2020-10-29 06:40:24,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 06:40:24,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1194 transitions. [2020-10-29 06:40:24,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-29 06:40:24,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:40:24,641 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, 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, 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 06:40:24,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 06:40:24,641 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:40:24,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:40:24,642 INFO L82 PathProgramCache]: Analyzing trace with hash -781314808, now seen corresponding path program 1 times [2020-10-29 06:40:24,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:40:24,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [504172629] [2020-10-29 06:40:24,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:40:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:24,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:24,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:24,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:27,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:29,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:29,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:29,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 06:40:29,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 06:40:29,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-29 06:40:29,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:29,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:29,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:40:29,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-29 06:40:29,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-29 06:40:29,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:40:29,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:40:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:29,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:29,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:29,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:40:29,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:29,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:40:29,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:29,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:29,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:40:29,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:29,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:40:29,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:29,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:40:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:29,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:29,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:29,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 06:40:29,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:29,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 06:40:29,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:29,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:29,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:40:29,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:29,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 06:40:29,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:40:29,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 06:40:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:29,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:30,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:30,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:30,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 06:40:30,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:40:30,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-29 06:40:30,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:30,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:30,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:40:30,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:40:30,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 06:40:30,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:30,230 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 134 proven. 62 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 06:40:30,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [504172629] [2020-10-29 06:40:30,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:40:30,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 06:40:30,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015971204] [2020-10-29 06:40:30,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 06:40:30,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:40:30,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 06:40:30,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:40:30,233 INFO L87 Difference]: Start difference. First operand 1052 states and 1194 transitions. Second operand 6 states. [2020-10-29 06:40:31,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:40:31,861 INFO L93 Difference]: Finished difference Result 2988 states and 3460 transitions. [2020-10-29 06:40:31,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 06:40:31,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 237 [2020-10-29 06:40:31,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:40:31,874 INFO L225 Difference]: With dead ends: 2988 [2020-10-29 06:40:31,874 INFO L226 Difference]: Without dead ends: 1797 [2020-10-29 06:40:31,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:40:31,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2020-10-29 06:40:31,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1644. [2020-10-29 06:40:31,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1644 states. [2020-10-29 06:40:31,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 1908 transitions. [2020-10-29 06:40:31,939 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 1908 transitions. Word has length 237 [2020-10-29 06:40:31,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:40:31,940 INFO L481 AbstractCegarLoop]: Abstraction has 1644 states and 1908 transitions. [2020-10-29 06:40:31,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 06:40:31,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 1908 transitions. [2020-10-29 06:40:31,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-10-29 06:40:31,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:40:31,946 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:40:31,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 06:40:31,946 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:40:31,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:40:31,947 INFO L82 PathProgramCache]: Analyzing trace with hash -534170864, now seen corresponding path program 1 times [2020-10-29 06:40:31,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:40:31,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083940196] [2020-10-29 06:40:31,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:40:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:32,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:32,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:32,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:34,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:35,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:37,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:37,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-29 06:40:37,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 06:40:37,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-29 06:40:37,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:37,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:37,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:40:37,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-29 06:40:37,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-29 06:40:37,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:37,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:40:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:37,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:37,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:37,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:40:37,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:37,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:40:37,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:37,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:37,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:40:37,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:37,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:40:37,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:37,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:40:37,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:37,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:37,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:37,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 06:40:37,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:37,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-29 06:40:37,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:37,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:37,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:40:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:37,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 06:40:37,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:37,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 06:40:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:37,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:37,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:37,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:37,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 06:40:37,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:40:37,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-29 06:40:37,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:37,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:37,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:40:37,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:40:37,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 06:40:37,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:37,577 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 147 proven. 62 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 06:40:37,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083940196] [2020-10-29 06:40:37,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:40:37,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 06:40:37,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371455141] [2020-10-29 06:40:37,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 06:40:37,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:40:37,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 06:40:37,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:40:37,580 INFO L87 Difference]: Start difference. First operand 1644 states and 1908 transitions. Second operand 6 states. [2020-10-29 06:40:39,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:40:39,051 INFO L93 Difference]: Finished difference Result 4009 states and 4708 transitions. [2020-10-29 06:40:39,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 06:40:39,057 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 256 [2020-10-29 06:40:39,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:40:39,071 INFO L225 Difference]: With dead ends: 4009 [2020-10-29 06:40:39,071 INFO L226 Difference]: Without dead ends: 2371 [2020-10-29 06:40:39,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:40:39,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2371 states. [2020-10-29 06:40:39,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 1491. [2020-10-29 06:40:39,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1491 states. [2020-10-29 06:40:39,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1717 transitions. [2020-10-29 06:40:39,135 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1717 transitions. Word has length 256 [2020-10-29 06:40:39,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:40:39,136 INFO L481 AbstractCegarLoop]: Abstraction has 1491 states and 1717 transitions. [2020-10-29 06:40:39,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 06:40:39,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1717 transitions. [2020-10-29 06:40:39,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2020-10-29 06:40:39,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:40:39,142 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:39,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 06:40:39,143 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:40:39,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:40:39,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1094997712, now seen corresponding path program 1 times [2020-10-29 06:40:39,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:40:39,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803824724] [2020-10-29 06:40:39,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:40:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:39,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:39,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:39,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:42,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:44,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:44,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 280 [2020-10-29 06:40:44,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:40:44,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4900 [2020-10-29 06:40:44,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:44,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:44,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:40:44,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 87 [2020-10-29 06:40:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:40:44,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:44,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:40:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:44,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:44,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:44,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:40:44,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:44,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:40:44,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:44,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:44,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:40:44,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:44,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:40:44,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:44,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:40:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:44,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:44,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:44,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-29 06:40:44,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:44,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 06:40:44,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:44,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:44,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:40:44,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:44,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-29 06:40:44,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:44,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 06:40:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:44,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:44,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:44,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:40:44,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:44,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-29 06:40:44,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:44,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:44,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:40:44,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:40:44,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-29 06:40:44,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:40:44,983 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:40:44,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803824724] [2020-10-29 06:40:44,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:40:44,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:40:44,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754366133] [2020-10-29 06:40:44,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:40:44,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:40:44,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:40:44,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:40:44,986 INFO L87 Difference]: Start difference. First operand 1491 states and 1717 transitions. Second operand 7 states. [2020-10-29 06:40:46,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:40:46,843 INFO L93 Difference]: Finished difference Result 3145 states and 3666 transitions. [2020-10-29 06:40:46,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 06:40:46,851 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 266 [2020-10-29 06:40:46,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:40:46,859 INFO L225 Difference]: With dead ends: 3145 [2020-10-29 06:40:46,859 INFO L226 Difference]: Without dead ends: 1660 [2020-10-29 06:40:46,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-29 06:40:46,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2020-10-29 06:40:46,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1642. [2020-10-29 06:40:46,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1642 states. [2020-10-29 06:40:46,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 1890 transitions. [2020-10-29 06:40:46,912 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 1890 transitions. Word has length 266 [2020-10-29 06:40:46,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:40:46,912 INFO L481 AbstractCegarLoop]: Abstraction has 1642 states and 1890 transitions. [2020-10-29 06:40:46,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:40:46,913 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 1890 transitions. [2020-10-29 06:40:46,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-29 06:40:46,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:40:46,920 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:40:46,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 06:40:46,920 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:40:46,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:40:46,921 INFO L82 PathProgramCache]: Analyzing trace with hash 805182052, now seen corresponding path program 1 times [2020-10-29 06:40:46,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:40:46,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898220570] [2020-10-29 06:40:46,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:40:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:46,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:47,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:49,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:50,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:50,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-29 06:40:50,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:40:50,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3398 [2020-10-29 06:40:50,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:50,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:50,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:40:50,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 218 [2020-10-29 06:40:50,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-29 06:40:50,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:50,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:40:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:50,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:50,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:50,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:40:50,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:50,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:40:50,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:50,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:50,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:40:50,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:50,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:40:50,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:50,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:40:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:50,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:50,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:50,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 06:40:50,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:50,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 06:40:50,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:50,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:50,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:40:50,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:50,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:40:50,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:50,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 06:40:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:50,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:50,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:50,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-29 06:40:50,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:50,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-29 06:40:50,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:50,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:40:50,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:50,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 06:40:50,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:50,785 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-29 06:40:50,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898220570] [2020-10-29 06:40:50,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:40:50,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 06:40:50,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87262552] [2020-10-29 06:40:50,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 06:40:50,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:40:50,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 06:40:50,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 06:40:50,788 INFO L87 Difference]: Start difference. First operand 1642 states and 1890 transitions. Second operand 5 states. [2020-10-29 06:40:52,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:40:52,052 INFO L93 Difference]: Finished difference Result 1802 states and 2056 transitions. [2020-10-29 06:40:52,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 06:40:52,052 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 276 [2020-10-29 06:40:52,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:40:52,060 INFO L225 Difference]: With dead ends: 1802 [2020-10-29 06:40:52,060 INFO L226 Difference]: Without dead ends: 1654 [2020-10-29 06:40:52,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 06:40:52,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2020-10-29 06:40:52,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1642. [2020-10-29 06:40:52,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1642 states. [2020-10-29 06:40:52,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 1887 transitions. [2020-10-29 06:40:52,119 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 1887 transitions. Word has length 276 [2020-10-29 06:40:52,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:40:52,120 INFO L481 AbstractCegarLoop]: Abstraction has 1642 states and 1887 transitions. [2020-10-29 06:40:52,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 06:40:52,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 1887 transitions. [2020-10-29 06:40:52,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-29 06:40:52,128 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:40:52,128 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, 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, 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] [2020-10-29 06:40:52,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 06:40:52,128 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:40:52,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:40:52,131 INFO L82 PathProgramCache]: Analyzing trace with hash 2135302512, now seen corresponding path program 1 times [2020-10-29 06:40:52,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:40:52,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [195660560] [2020-10-29 06:40:52,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:40:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:52,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:52,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:52,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:56,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:56,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-29 06:40:56,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 06:40:56,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3940 [2020-10-29 06:40:56,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:56,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:56,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 06:40:56,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-29 06:40:56,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-29 06:40:56,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:56,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:40:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:56,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:56,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:56,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:40:56,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:56,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 06:40:56,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:56,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:56,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:40:56,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:56,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:40:56,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:56,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:40:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:56,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:56,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:56,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 06:40:56,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:56,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-29 06:40:56,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:56,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:56,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:40:56,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:40:56,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 06:40:56,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:56,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-29 06:40:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:56,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:56,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:40:56,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-29 06:40:56,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:40:56,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-29 06:40:56,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:40:56,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:40:56,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 06:40:56,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:40:56,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-29 06:40:56,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:40:57,198 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 221 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 06:40:57,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [195660560] [2020-10-29 06:40:57,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:40:57,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 06:40:57,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938607994] [2020-10-29 06:40:57,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 06:40:57,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:40:57,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 06:40:57,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 06:40:57,200 INFO L87 Difference]: Start difference. First operand 1642 states and 1887 transitions. Second operand 8 states. [2020-10-29 06:40:59,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:40:59,449 INFO L93 Difference]: Finished difference Result 2705 states and 3128 transitions. [2020-10-29 06:40:59,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 06:40:59,450 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 326 [2020-10-29 06:40:59,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:40:59,464 INFO L225 Difference]: With dead ends: 2705 [2020-10-29 06:40:59,464 INFO L226 Difference]: Without dead ends: 2539 [2020-10-29 06:40:59,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-29 06:40:59,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2539 states. [2020-10-29 06:40:59,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2539 to 2089. [2020-10-29 06:40:59,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-10-29 06:40:59,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2463 transitions. [2020-10-29 06:40:59,532 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2463 transitions. Word has length 326 [2020-10-29 06:40:59,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:40:59,533 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2463 transitions. [2020-10-29 06:40:59,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 06:40:59,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2463 transitions. [2020-10-29 06:40:59,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2020-10-29 06:40:59,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:40:59,543 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, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:40:59,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 06:40:59,544 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:40:59,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:40:59,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1889625924, now seen corresponding path program 1 times [2020-10-29 06:40:59,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:40:59,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514280027] [2020-10-29 06:40:59,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:40:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:40:59,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:59,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:59,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:40:59,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:04,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:04,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 364 [2020-10-29 06:41:04,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:41:04,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-29 06:41:04,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:04,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:04,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:04,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 97 [2020-10-29 06:41:04,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-29 06:41:04,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:04,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:41:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:04,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:04,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:04,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:41:04,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:04,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 06:41:04,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:04,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:04,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:41:04,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:04,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:41:04,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:04,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:41:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:04,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:04,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:04,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 06:41:04,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:04,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-29 06:41:04,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:04,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:04,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:41:04,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:04,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-29 06:41:04,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:04,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 06:41:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:04,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:04,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:04,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-29 06:41:04,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:04,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-29 06:41:04,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:04,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:04,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:04,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:41:04,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-29 06:41:04,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:05,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2020-10-29 06:41:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:05,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:05,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:05,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 06:41:05,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:05,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 06:41:05,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:05,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:05,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:41:05,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-29 06:41:05,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:41:05,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:05,176 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 274 proven. 89 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-10-29 06:41:05,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514280027] [2020-10-29 06:41:05,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:41:05,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:41:05,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693578063] [2020-10-29 06:41:05,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:41:05,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:41:05,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:41:05,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:41:05,178 INFO L87 Difference]: Start difference. First operand 2089 states and 2463 transitions. Second operand 7 states. [2020-10-29 06:41:07,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:41:07,264 INFO L93 Difference]: Finished difference Result 5152 states and 6356 transitions. [2020-10-29 06:41:07,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:41:07,265 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 348 [2020-10-29 06:41:07,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:41:07,282 INFO L225 Difference]: With dead ends: 5152 [2020-10-29 06:41:07,282 INFO L226 Difference]: Without dead ends: 3069 [2020-10-29 06:41:07,288 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:41:07,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3069 states. [2020-10-29 06:41:07,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3069 to 2822. [2020-10-29 06:41:07,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2822 states. [2020-10-29 06:41:07,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2822 states to 2822 states and 3292 transitions. [2020-10-29 06:41:07,389 INFO L78 Accepts]: Start accepts. Automaton has 2822 states and 3292 transitions. Word has length 348 [2020-10-29 06:41:07,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:41:07,389 INFO L481 AbstractCegarLoop]: Abstraction has 2822 states and 3292 transitions. [2020-10-29 06:41:07,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:41:07,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2822 states and 3292 transitions. [2020-10-29 06:41:07,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2020-10-29 06:41:07,398 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:41:07,399 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, 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, 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 06:41:07,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 06:41:07,399 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:41:07,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:41:07,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1137279344, now seen corresponding path program 1 times [2020-10-29 06:41:07,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:41:07,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595570503] [2020-10-29 06:41:07,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:41:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:07,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:07,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:08,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:10,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:11,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:12,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:12,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 369 [2020-10-29 06:41:12,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 06:41:12,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-29 06:41:12,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:12,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:12,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 06:41:12,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-10-29 06:41:12,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-29 06:41:12,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:41:12,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:41:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:12,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:12,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:12,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:41:12,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:12,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 06:41:12,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:12,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:41:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:12,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:41:12,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:41:12,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:41:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:12,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:12,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:12,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-29 06:41:12,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:12,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 06:41:12,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:12,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:12,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:41:12,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:12,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:41:12,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:41:12,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 06:41:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:12,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:12,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:12,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-29 06:41:12,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:12,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-29 06:41:12,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:12,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:12,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:41:12,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:12,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-29 06:41:12,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 06:41:12,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-10-29 06:41:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:12,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:13,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:13,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:13,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 06:41:13,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 06:41:13,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-29 06:41:13,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:13,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:41:13,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 06:41:13,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:13,450 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 297 proven. 63 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-29 06:41:13,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595570503] [2020-10-29 06:41:13,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:41:13,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:41:13,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896053308] [2020-10-29 06:41:13,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:41:13,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:41:13,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:41:13,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:41:13,453 INFO L87 Difference]: Start difference. First operand 2822 states and 3292 transitions. Second operand 7 states. [2020-10-29 06:41:15,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:41:15,194 INFO L93 Difference]: Finished difference Result 6516 states and 7628 transitions. [2020-10-29 06:41:15,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:41:15,194 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 353 [2020-10-29 06:41:15,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:41:15,211 INFO L225 Difference]: With dead ends: 6516 [2020-10-29 06:41:15,211 INFO L226 Difference]: Without dead ends: 3555 [2020-10-29 06:41:15,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:41:15,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3555 states. [2020-10-29 06:41:15,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3555 to 3108. [2020-10-29 06:41:15,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3108 states. [2020-10-29 06:41:15,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3108 states to 3108 states and 3666 transitions. [2020-10-29 06:41:15,311 INFO L78 Accepts]: Start accepts. Automaton has 3108 states and 3666 transitions. Word has length 353 [2020-10-29 06:41:15,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:41:15,312 INFO L481 AbstractCegarLoop]: Abstraction has 3108 states and 3666 transitions. [2020-10-29 06:41:15,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:41:15,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3108 states and 3666 transitions. [2020-10-29 06:41:15,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2020-10-29 06:41:15,322 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:41:15,322 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, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 06:41:15,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 06:41:15,323 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:41:15,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:41:15,323 INFO L82 PathProgramCache]: Analyzing trace with hash 428646044, now seen corresponding path program 1 times [2020-10-29 06:41:15,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:41:15,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867954009] [2020-10-29 06:41:15,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:41:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:15,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:15,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:15,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:19,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:20,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:20,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 379 [2020-10-29 06:41:20,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 06:41:20,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-29 06:41:20,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:20,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:20,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:20,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 215 [2020-10-29 06:41:20,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-29 06:41:20,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:20,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:41:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:20,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:20,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:20,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:41:20,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:20,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 06:41:20,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:20,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:20,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:41:20,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:20,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:41:20,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:20,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:41:20,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:20,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:20,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:20,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 06:41:20,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:20,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 06:41:20,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:20,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:41:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:20,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:41:20,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:20,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 06:41:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:20,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:20,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:20,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 06:41:20,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:20,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 06:41:20,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:20,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:20,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:41:20,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:20,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-29 06:41:20,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:20,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-29 06:41:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:20,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:20,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:20,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 06:41:20,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:20,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-29 06:41:20,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:20,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:20,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:20,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:41:20,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 06:41:20,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:20,814 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-29 06:41:20,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [867954009] [2020-10-29 06:41:20,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:41:20,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:41:20,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277594594] [2020-10-29 06:41:20,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:41:20,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:41:20,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:41:20,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:41:20,816 INFO L87 Difference]: Start difference. First operand 3108 states and 3666 transitions. Second operand 7 states. [2020-10-29 06:41:22,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:41:22,485 INFO L93 Difference]: Finished difference Result 6526 states and 7789 transitions. [2020-10-29 06:41:22,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:41:22,486 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 363 [2020-10-29 06:41:22,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:41:22,502 INFO L225 Difference]: With dead ends: 6526 [2020-10-29 06:41:22,502 INFO L226 Difference]: Without dead ends: 3424 [2020-10-29 06:41:22,509 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 06:41:22,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3424 states. [2020-10-29 06:41:22,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3424 to 3400. [2020-10-29 06:41:22,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3400 states. [2020-10-29 06:41:22,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3400 states to 3400 states and 4070 transitions. [2020-10-29 06:41:22,639 INFO L78 Accepts]: Start accepts. Automaton has 3400 states and 4070 transitions. Word has length 363 [2020-10-29 06:41:22,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:41:22,639 INFO L481 AbstractCegarLoop]: Abstraction has 3400 states and 4070 transitions. [2020-10-29 06:41:22,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:41:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 3400 states and 4070 transitions. [2020-10-29 06:41:22,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2020-10-29 06:41:22,650 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 06:41:22,650 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, 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, 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] [2020-10-29 06:41:22,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 06:41:22,651 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 06:41:22,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 06:41:22,651 INFO L82 PathProgramCache]: Analyzing trace with hash -199684480, now seen corresponding path program 1 times [2020-10-29 06:41:22,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 06:41:22,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094682884] [2020-10-29 06:41:22,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 06:41:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:22,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:22,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:23,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:26,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:26,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:27,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:27,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 393 [2020-10-29 06:41:27,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 06:41:27,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-29 06:41:27,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:27,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-29 06:41:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 06:41:27,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:27,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 06:41:27,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:27,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:27,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:27,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 06:41:27,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:27,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 06:41:27,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:27,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:41:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:41:27,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:27,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 06:41:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:27,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:27,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:27,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 06:41:27,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:27,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 06:41:27,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:27,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:27,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 06:41:27,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 06:41:27,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 06:41:27,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:27,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 06:41:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:27,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:28,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:28,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-29 06:41:28,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:28,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-29 06:41:28,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:28,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:28,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 06:41:28,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 06:41:28,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-29 06:41:28,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:28,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-10-29 06:41:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 06:41:28,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 06:41:28,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 06:41:28,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-29 06:41:28,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 06:41:28,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 06:41:28,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 06:41:28,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 06:41:28,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 06:41:28,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-29 06:41:28,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 06:41:28,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 06:41:28,367 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 283 proven. 89 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-29 06:41:28,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094682884] [2020-10-29 06:41:28,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 06:41:28,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 06:41:28,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915430566] [2020-10-29 06:41:28,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 06:41:28,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 06:41:28,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 06:41:28,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 06:41:28,369 INFO L87 Difference]: Start difference. First operand 3400 states and 4070 transitions. Second operand 7 states. [2020-10-29 06:41:30,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 06:41:30,095 INFO L93 Difference]: Finished difference Result 6813 states and 8170 transitions. [2020-10-29 06:41:30,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 06:41:30,095 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 377 [2020-10-29 06:41:30,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 06:41:30,097 INFO L225 Difference]: With dead ends: 6813 [2020-10-29 06:41:30,097 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 06:41:30,142 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 06:41:30,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 06:41:30,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 06:41:30,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 06:41:30,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 06:41:30,143 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 377 [2020-10-29 06:41:30,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 06:41:30,144 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 06:41:30,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 06:41:30,144 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 06:41:30,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 06:41:30,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 06:41:30,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 06:41:31,327 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 250 DAG size of output: 141 [2020-10-29 06:41:32,032 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 141 [2020-10-29 06:41:32,414 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 38 [2020-10-29 06:41:32,931 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 39 [2020-10-29 06:41:33,956 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 228 DAG size of output: 49 [2020-10-29 06:41:34,534 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 39 [2020-10-29 06:41:34,538 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 06:41:34,539 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 06:41:34,539 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 06:41:34,539 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 06:41:34,539 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:41:34,540 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-29 06:41:34,540 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:41:34,540 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-29 06:41:34,540 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-29 06:41:34,540 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-29 06:41:34,540 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-29 06:41:34,540 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-29 06:41:34,540 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-29 06:41:34,541 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-29 06:41:34,541 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-29 06:41:34,541 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-29 06:41:34,541 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-29 06:41:34,541 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-29 06:41:34,541 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-29 06:41:34,541 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-29 06:41:34,542 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,542 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,542 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,542 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,542 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,542 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,543 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-29 06:41:34,543 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-29 06:41:34,543 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-29 06:41:34,543 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-29 06:41:34,543 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-29 06:41:34,543 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-29 06:41:34,543 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-29 06:41:34,543 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-29 06:41:34,543 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-29 06:41:34,543 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-29 06:41:34,543 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-29 06:41:34,543 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,543 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,543 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,544 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,544 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,544 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-29 06:41:34,544 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-29 06:41:34,544 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-29 06:41:34,544 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-29 06:41:34,544 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-29 06:41:34,544 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-29 06:41:34,544 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-29 06:41:34,544 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-29 06:41:34,544 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-29 06:41:34,544 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-29 06:41:34,545 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-29 06:41:34,545 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-29 06:41:34,545 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-29 06:41:34,545 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-29 06:41:34,545 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,545 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,545 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,545 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,545 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,546 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-29 06:41:34,546 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-29 06:41:34,546 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-29 06:41:34,546 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-29 06:41:34,546 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-29 06:41:34,546 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-29 06:41:34,546 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-29 06:41:34,546 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-29 06:41:34,546 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-29 06:41:34,546 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-29 06:41:34,546 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,547 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,547 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,547 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,547 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,547 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-29 06:41:34,547 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-29 06:41:34,547 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-29 06:41:34,547 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-29 06:41:34,547 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-29 06:41:34,548 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-29 06:41:34,548 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-29 06:41:34,548 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-29 06:41:34,548 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-29 06:41:34,548 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-29 06:41:34,548 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-29 06:41:34,548 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-29 06:41:34,548 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-29 06:41:34,548 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,548 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,549 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,549 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,549 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,549 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-29 06:41:34,549 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-29 06:41:34,549 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-29 06:41:34,549 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-29 06:41:34,549 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-29 06:41:34,549 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,550 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,550 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-29 06:41:34,550 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-29 06:41:34,550 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-29 06:41:34,550 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-29 06:41:34,550 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,550 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,550 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,550 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,551 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,551 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-29 06:41:34,551 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-29 06:41:34,551 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-29 06:41:34,551 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-29 06:41:34,551 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-29 06:41:34,551 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-29 06:41:34,551 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-29 06:41:34,551 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-29 06:41:34,551 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-29 06:41:34,552 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-29 06:41:34,552 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-29 06:41:34,552 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-29 06:41:34,552 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-29 06:41:34,552 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,552 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,552 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,552 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,552 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-29 06:41:34,553 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,553 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,553 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-29 06:41:34,553 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-29 06:41:34,553 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-29 06:41:34,553 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-29 06:41:34,553 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-29 06:41:34,553 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-29 06:41:34,553 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-29 06:41:34,553 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-29 06:41:34,554 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-29 06:41:34,554 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-29 06:41:34,554 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-29 06:41:34,554 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-29 06:41:34,554 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-29 06:41:34,554 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,554 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,554 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,554 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,554 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,555 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,555 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-29 06:41:34,555 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse0 (= ~a1~0 |old(~a1~0)|)) (.cse1 (= ~a10~0 |old(~a10~0)|))) (let ((.cse3 (not (<= |old(~a1~0)| 215))) (.cse6 (not (= 0 |old(~a10~0)|))) (.cse2 (not (<= |old(~a19~0)| 8))) (.cse5 (not (= 9 |old(~a19~0)|))) (.cse4 (and .cse0 (= ~a19~0 |old(~a19~0)|) .cse1)) (.cse7 (not (= 4 |old(~a10~0)|)))) (and (or (not (= 6 |old(~a19~0)|)) (and .cse0 (= ~a19~0 6) .cse1)) (or .cse2 .cse3 .cse4) (or .cse4 .cse5 (not (<= |old(~a10~0)| 3))) (or .cse2 .cse4 .cse6) (or .cse4 (not (= |old(~a10~0)| 1))) (or .cse2 .cse4 (not (= 2 |old(~a10~0)|))) (or .cse3 .cse4 .cse6) (or .cse2 .cse4 .cse7) (or .cse5 .cse4 .cse7)))) [2020-10-29 06:41:34,555 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-29 06:41:34,555 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-29 06:41:34,555 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-29 06:41:34,555 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-29 06:41:34,555 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-29 06:41:34,556 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-29 06:41:34,556 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-29 06:41:34,556 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-29 06:41:34,556 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-29 06:41:34,556 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-29 06:41:34,556 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-29 06:41:34,556 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-29 06:41:34,556 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-29 06:41:34,556 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,556 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,557 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,557 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,557 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,557 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,557 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-29 06:41:34,557 INFO L270 CegarLoopResult]: At program point L195(line 195) the Hoare annotation is: (let ((.cse1 (not (= 4 |old(~a10~0)|))) (.cse3 (not (<= |old(~a1~0)| 215))) (.cse0 (not (= 9 |old(~a19~0)|))) (.cse2 (not (<= |old(~a19~0)| 8))) (.cse4 (not (= 0 |old(~a10~0)|)))) (and (or .cse0 .cse1) (or .cse2 .cse3) (not (= 6 |old(~a19~0)|)) (not (= |old(~a10~0)| 1)) (or .cse2 .cse1) (or .cse3 .cse4) (or .cse2 (not (= 2 |old(~a10~0)|))) (or .cse0 (not (<= |old(~a10~0)| 3))) (or .cse2 .cse4))) [2020-10-29 06:41:34,557 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-29 06:41:34,557 INFO L274 CegarLoopResult]: For program point L195-1(line 195) no Hoare annotation was computed. [2020-10-29 06:41:34,558 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-29 06:41:34,558 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-29 06:41:34,558 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-29 06:41:34,558 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-29 06:41:34,558 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-29 06:41:34,558 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-29 06:41:34,558 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-29 06:41:34,558 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-29 06:41:34,558 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-29 06:41:34,558 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-29 06:41:34,559 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,559 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,559 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,559 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,559 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,559 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,559 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-29 06:41:34,559 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-29 06:41:34,559 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-29 06:41:34,559 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-29 06:41:34,559 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-29 06:41:34,560 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-29 06:41:34,560 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-29 06:41:34,560 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-29 06:41:34,560 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-29 06:41:34,560 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-29 06:41:34,560 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-29 06:41:34,560 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-29 06:41:34,560 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,560 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,560 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,560 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,561 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,561 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-29 06:41:34,561 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 06:41:34,561 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (<= ~a1~0 32)) [2020-10-29 06:41:34,561 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 06:41:34,561 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 06:41:34,561 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (not (= 9 |old(~a19~0)|)) (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 0 |old(~a10~0)|)) (not (<= |old(~a1~0)| 32))) [2020-10-29 06:41:34,561 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-29 06:41:34,562 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (let ((.cse0 (= ~a10~0 0)) (.cse3 (<= ~a1~0 215)) (.cse1 (<= ~a19~0 8)) (.cse2 (= ~a19~0 9)) (.cse4 (= ~a10~0 4))) (or (and .cse0 .cse1) (= ~a10~0 1) (not (= 9 |old(~a19~0)|)) (and .cse2 (<= ~a10~0 3)) (not (= 0 |old(~a10~0)|)) (and .cse3 .cse0) (and .cse3 .cse1) (not (<= |old(~a1~0)| 32)) (and (= ~a10~0 2) .cse1) (= ~a19~0 6) (and .cse1 .cse4) (and .cse2 .cse4))) [2020-10-29 06:41:34,562 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-29 06:41:34,562 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-29 06:41:34,562 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (let ((.cse0 (= ~a10~0 0)) (.cse3 (<= ~a1~0 215)) (.cse1 (<= ~a19~0 8)) (.cse2 (= ~a19~0 9)) (.cse4 (= ~a10~0 4))) (or (and .cse0 .cse1) (= ~a10~0 1) (not (= 9 |old(~a19~0)|)) (and .cse2 (<= ~a10~0 3)) (not (= 0 |old(~a10~0)|)) (and .cse3 .cse0) (and .cse3 .cse1) (not (<= |old(~a1~0)| 32)) (and (= ~a10~0 2) .cse1) (= ~a19~0 6) (and .cse1 .cse4) (and .cse2 .cse4))) [2020-10-29 06:41:34,562 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-29 06:41:34,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 06:41:34 BoogieIcfgContainer [2020-10-29 06:41:34,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 06:41:34,585 INFO L168 Benchmark]: Toolchain (without parser) took 91045.78 ms. Allocated memory was 157.3 MB in the beginning and 1.1 GB in the end (delta: 930.1 MB). Free memory was 130.0 MB in the beginning and 954.5 MB in the end (delta: -824.5 MB). Peak memory consumption was 649.3 MB. Max. memory is 8.0 GB. [2020-10-29 06:41:34,585 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 157.3 MB. Free memory is still 128.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 06:41:34,586 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.00 ms. Allocated memory is still 157.3 MB. Free memory was 129.3 MB in the beginning and 102.6 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-10-29 06:41:34,587 INFO L168 Benchmark]: Boogie Preprocessor took 189.89 ms. Allocated memory is still 157.3 MB. Free memory was 102.6 MB in the beginning and 134.2 MB in the end (delta: -31.6 MB). Peak memory consumption was 5.3 MB. Max. memory is 8.0 GB. [2020-10-29 06:41:34,588 INFO L168 Benchmark]: RCFGBuilder took 1319.92 ms. Allocated memory was 157.3 MB in the beginning and 201.3 MB in the end (delta: 44.0 MB). Free memory was 134.2 MB in the beginning and 160.4 MB in the end (delta: -26.2 MB). Peak memory consumption was 87.6 MB. Max. memory is 8.0 GB. [2020-10-29 06:41:34,588 INFO L168 Benchmark]: TraceAbstraction took 88754.36 ms. Allocated memory was 201.3 MB in the beginning and 1.1 GB in the end (delta: 886.0 MB). Free memory was 159.9 MB in the beginning and 954.5 MB in the end (delta: -794.6 MB). Peak memory consumption was 634.0 MB. Max. memory is 8.0 GB. [2020-10-29 06:41:34,592 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 157.3 MB. Free memory is still 128.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 770.00 ms. Allocated memory is still 157.3 MB. Free memory was 129.3 MB in the beginning and 102.6 MB in the end (delta: 26.6 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 189.89 ms. Allocated memory is still 157.3 MB. Free memory was 102.6 MB in the beginning and 134.2 MB in the end (delta: -31.6 MB). Peak memory consumption was 5.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1319.92 ms. Allocated memory was 157.3 MB in the beginning and 201.3 MB in the end (delta: 44.0 MB). Free memory was 134.2 MB in the beginning and 160.4 MB in the end (delta: -26.2 MB). Peak memory consumption was 87.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 88754.36 ms. Allocated memory was 201.3 MB in the beginning and 1.1 GB in the end (delta: 886.0 MB). Free memory was 159.9 MB in the beginning and 954.5 MB in the end (delta: -794.6 MB). Peak memory consumption was 634.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((((((((a10 == 0 && a19 <= 8) || a10 == 1) || !(9 == \old(a19))) || (a19 == 9 && a10 <= 3)) || !(0 == \old(a10))) || (a1 <= 215 && a10 == 0)) || (a1 <= 215 && a19 <= 8)) || !(\old(a1) <= 32)) || (a10 == 2 && a19 <= 8)) || a19 == 6) || (a19 <= 8 && a10 == 4)) || (a19 == 9 && a10 == 4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 84.2s, OverallIterations: 14, TraceHistogramMax: 4, AutomataDifference: 24.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 395 SDtfs, 4830 SDslu, 466 SDs, 0 SdLazy, 11845 SolverSat, 1508 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 126 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3400occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 2291 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 334 PreInvPairs, 398 NumberOfFragments, 468 HoareAnnotationTreeSize, 334 FomulaSimplifications, 22800628 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 9 FomulaSimplificationsInter, 887392 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 55.9s InterpolantComputationTime, 3615 NumberOfCodeBlocks, 3615 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 3601 ConstructedInterpolants, 0 QuantifiedInterpolants, 2669359 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 1 PerfectInterpolantSequences, 2951/3405 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...