/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=SHALLOWEST --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/Problem11_label33.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 22:41:20,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 22:41:20,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 22:41:20,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 22:41:20,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 22:41:20,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 22:41:20,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 22:41:20,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 22:41:20,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 22:41:20,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 22:41:20,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 22:41:20,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 22:41:20,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 22:41:20,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 22:41:20,952 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 22:41:20,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 22:41:20,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 22:41:20,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 22:41:20,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 22:41:20,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 22:41:20,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 22:41:20,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 22:41:20,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 22:41:20,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 22:41:20,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 22:41:20,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 22:41:20,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 22:41:21,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 22:41:21,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 22:41:21,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 22:41:21,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 22:41:21,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 22:41:21,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 22:41:21,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 22:41:21,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 22:41:21,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 22:41:21,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 22:41:21,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 22:41:21,014 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 22:41:21,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 22:41:21,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 22:41:21,020 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 [2020-10-26 22:41:21,073 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 22:41:21,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 22:41:21,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 22:41:21,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 22:41:21,079 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 22:41:21,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 22:41:21,080 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 22:41:21,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 22:41:21,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 22:41:21,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 22:41:21,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 22:41:21,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 22:41:21,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 22:41:21,082 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 22:41:21,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 22:41:21,083 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 22:41:21,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 22:41:21,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 22:41:21,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 22:41:21,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 22:41:21,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 22:41:21,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 22:41:21,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 22:41:21,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 22:41:21,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 22:41:21,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 22:41:21,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 22:41:21,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 22:41:21,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 22:41:21,086 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 22:41:21,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 22:41:21,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 22:41:21,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 22:41:21,554 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 22:41:21,554 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 22:41:21,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label33.c [2020-10-26 22:41:21,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5613ad379/b34d9782ed2b4fe7b960e9b182e55710/FLAG469ddaa84 [2020-10-26 22:41:22,474 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 22:41:22,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem11_label33.c [2020-10-26 22:41:22,504 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5613ad379/b34d9782ed2b4fe7b960e9b182e55710/FLAG469ddaa84 [2020-10-26 22:41:22,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5613ad379/b34d9782ed2b4fe7b960e9b182e55710 [2020-10-26 22:41:22,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 22:41:22,664 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 22:41:22,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 22:41:22,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 22:41:22,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 22:41:22,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:41:22" (1/1) ... [2020-10-26 22:41:22,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a66496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:22, skipping insertion in model container [2020-10-26 22:41:22,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:41:22" (1/1) ... [2020-10-26 22:41:22,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 22:41:22,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 22:41:23,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:41:23,503 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 22:41:23,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 22:41:23,792 INFO L208 MainTranslator]: Completed translation [2020-10-26 22:41:23,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:23 WrapperNode [2020-10-26 22:41:23,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 22:41:23,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 22:41:23,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 22:41:23,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 22:41:23,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:23" (1/1) ... [2020-10-26 22:41:23,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:23" (1/1) ... [2020-10-26 22:41:23,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:23" (1/1) ... [2020-10-26 22:41:23,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:23" (1/1) ... [2020-10-26 22:41:23,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:23" (1/1) ... [2020-10-26 22:41:23,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:23" (1/1) ... [2020-10-26 22:41:23,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:23" (1/1) ... [2020-10-26 22:41:23,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 22:41:23,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 22:41:23,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 22:41:23,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 22:41:23,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:23" (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 [2020-10-26 22:41:24,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 22:41:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 22:41:24,076 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 22:41:24,076 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 22:41:24,076 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 22:41:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 22:41:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 22:41:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 22:41:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 22:41:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 22:41:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 22:41:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 22:41:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 22:41:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 22:41:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 22:41:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 22:41:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 22:41:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 22:41:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 22:41:26,370 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 22:41:26,370 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 22:41:26,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:41:26 BoogieIcfgContainer [2020-10-26 22:41:26,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 22:41:26,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 22:41:26,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 22:41:26,379 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 22:41:26,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:41:22" (1/3) ... [2020-10-26 22:41:26,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcfe842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:41:26, skipping insertion in model container [2020-10-26 22:41:26,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:41:23" (2/3) ... [2020-10-26 22:41:26,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dcfe842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:41:26, skipping insertion in model container [2020-10-26 22:41:26,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:41:26" (3/3) ... [2020-10-26 22:41:26,384 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label33.c [2020-10-26 22:41:26,398 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 22:41:26,404 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 22:41:26,420 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 22:41:26,453 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 22:41:26,454 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 22:41:26,454 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 22:41:26,454 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 22:41:26,454 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 22:41:26,454 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 22:41:26,455 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 22:41:26,455 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 22:41:26,482 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states. [2020-10-26 22:41:26,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-26 22:41:26,491 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:41:26,492 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] [2020-10-26 22:41:26,492 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:41:26,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:41:26,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1693658034, now seen corresponding path program 1 times [2020-10-26 22:41:26,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:41:26,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300458313] [2020-10-26 22:41:26,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:41:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:26,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:27,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:27,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-26 22:41:27,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:41:27,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 606 [2020-10-26 22:41:27,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:27,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:41:27,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:41:27,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-26 22:41:27,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-26 22:41:27,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:41:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:27,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:27,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:27,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:41:27,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:41:27,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 22:41:27,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:27,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:41:27,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:41:27,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:41:27,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:41:27,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:41:27,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300458313] [2020-10-26 22:41:27,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:41:27,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 22:41:27,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290876247] [2020-10-26 22:41:27,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 22:41:27,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:41:27,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 22:41:27,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 22:41:27,559 INFO L87 Difference]: Start difference. First operand 296 states. Second operand 4 states. [2020-10-26 22:41:31,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:41:31,043 INFO L93 Difference]: Finished difference Result 796 states and 1392 transitions. [2020-10-26 22:41:31,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:41:31,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-10-26 22:41:31,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:41:31,086 INFO L225 Difference]: With dead ends: 796 [2020-10-26 22:41:31,086 INFO L226 Difference]: Without dead ends: 435 [2020-10-26 22:41:31,105 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 [2020-10-26 22:41:31,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-10-26 22:41:31,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 431. [2020-10-26 22:41:31,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-10-26 22:41:31,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 619 transitions. [2020-10-26 22:41:31,223 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 619 transitions. Word has length 35 [2020-10-26 22:41:31,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:41:31,223 INFO L481 AbstractCegarLoop]: Abstraction has 431 states and 619 transitions. [2020-10-26 22:41:31,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 22:41:31,224 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 619 transitions. [2020-10-26 22:41:31,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-26 22:41:31,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:41:31,230 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:41:31,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 22:41:31,230 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:41:31,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:41:31,231 INFO L82 PathProgramCache]: Analyzing trace with hash -461029517, now seen corresponding path program 1 times [2020-10-26 22:41:31,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:41:31,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [35795702] [2020-10-26 22:41:31,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:41:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:31,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:31,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:32,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:33,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:33,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-26 22:41:33,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:41:33,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1762 [2020-10-26 22:41:33,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:33,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:41:33,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:41:33,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-26 22:41:33,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:41:33,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:41:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:33,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:33,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:33,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:41:33,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:41:33,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 22:41:33,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:41:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:41:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:41:33,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:41:33,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:41:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:33,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:33,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:33,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-26 22:41:33,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:41:33,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-26 22:41:33,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:33,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:41:33,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:41:33,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-26 22:41:33,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:41:33,532 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:41:33,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [35795702] [2020-10-26 22:41:33,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:41:33,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-26 22:41:33,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790931428] [2020-10-26 22:41:33,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:41:33,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:41:33,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:41:33,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:41:33,543 INFO L87 Difference]: Start difference. First operand 431 states and 619 transitions. Second operand 8 states. [2020-10-26 22:41:33,691 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-26 22:41:38,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:41:38,349 INFO L93 Difference]: Finished difference Result 1666 states and 2473 transitions. [2020-10-26 22:41:38,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 22:41:38,352 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 107 [2020-10-26 22:41:38,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:41:38,361 INFO L225 Difference]: With dead ends: 1666 [2020-10-26 22:41:38,361 INFO L226 Difference]: Without dead ends: 1241 [2020-10-26 22:41:38,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-26 22:41:38,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2020-10-26 22:41:38,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1209. [2020-10-26 22:41:38,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2020-10-26 22:41:38,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1689 transitions. [2020-10-26 22:41:38,470 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1689 transitions. Word has length 107 [2020-10-26 22:41:38,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:41:38,470 INFO L481 AbstractCegarLoop]: Abstraction has 1209 states and 1689 transitions. [2020-10-26 22:41:38,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:41:38,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1689 transitions. [2020-10-26 22:41:38,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-26 22:41:38,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:41:38,487 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:41:38,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 22:41:38,488 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:41:38,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:41:38,489 INFO L82 PathProgramCache]: Analyzing trace with hash -2123907453, now seen corresponding path program 1 times [2020-10-26 22:41:38,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:41:38,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2023825552] [2020-10-26 22:41:38,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:41:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:38,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:38,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:38,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:39,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:40,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:40,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 22:41:40,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:41:40,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2381 [2020-10-26 22:41:40,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:40,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:41:40,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:41:40,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-26 22:41:40,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:41:41,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:41:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:41,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:41,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:41,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:41:41,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:41:41,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-26 22:41:41,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:41:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:41:41,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:41:41,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:41:41,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:41:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:41,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:41,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:41,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-26 22:41:41,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:41:41,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-26 22:41:41,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:41:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:41:41,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-26 22:41:41,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:41:41,432 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 22:41:41,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2023825552] [2020-10-26 22:41:41,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 22:41:41,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 22:41:41,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142406872] [2020-10-26 22:41:41,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:41:41,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:41:41,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:41:41,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:41:41,438 INFO L87 Difference]: Start difference. First operand 1209 states and 1689 transitions. Second operand 7 states. [2020-10-26 22:41:45,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:41:45,417 INFO L93 Difference]: Finished difference Result 3632 states and 5218 transitions. [2020-10-26 22:41:45,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:41:45,419 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 115 [2020-10-26 22:41:45,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:41:45,441 INFO L225 Difference]: With dead ends: 3632 [2020-10-26 22:41:45,441 INFO L226 Difference]: Without dead ends: 2429 [2020-10-26 22:41:45,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:41:45,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2020-10-26 22:41:45,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 2404. [2020-10-26 22:41:45,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2404 states. [2020-10-26 22:41:45,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2404 states to 2404 states and 3176 transitions. [2020-10-26 22:41:45,558 INFO L78 Accepts]: Start accepts. Automaton has 2404 states and 3176 transitions. Word has length 115 [2020-10-26 22:41:45,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:41:45,560 INFO L481 AbstractCegarLoop]: Abstraction has 2404 states and 3176 transitions. [2020-10-26 22:41:45,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:41:45,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states and 3176 transitions. [2020-10-26 22:41:45,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-26 22:41:45,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:41:45,567 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, 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] [2020-10-26 22:41:45,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 22:41:45,567 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:41:45,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:41:45,569 INFO L82 PathProgramCache]: Analyzing trace with hash -772328302, now seen corresponding path program 1 times [2020-10-26 22:41:45,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:41:45,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234393386] [2020-10-26 22:41:45,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:41:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:45,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:45,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:45,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:49,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:50,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:50,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-26 22:41:50,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:41:50,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-26 22:41:50,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:50,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:41:50,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:41:50,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-26 22:41:50,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:41:50,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:41:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:50,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:50,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:50,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:41:50,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:41:50,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 22:41:50,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:50,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:41:50,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:41:50,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:41:50,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:41:50,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:41:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:50,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:51,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:51,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 22:41:51,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:41:51,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-26 22:41:51,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:51,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:41:51,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:41:51,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:41:51,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:41:51,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-26 22:41:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:51,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:51,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:51,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:41:51,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:41:51,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-26 22:41:51,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:51,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:41:51,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-26 22:41:51,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:41:51,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:41:51,402 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 54 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:41:51,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234393386] [2020-10-26 22:41:51,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:41:51,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:41:51,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074293165] [2020-10-26 22:41:51,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:41:51,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:41:51,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:41:51,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:41:51,405 INFO L87 Difference]: Start difference. First operand 2404 states and 3176 transitions. Second operand 7 states. [2020-10-26 22:41:54,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:41:54,325 INFO L93 Difference]: Finished difference Result 4683 states and 6290 transitions. [2020-10-26 22:41:54,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:41:54,326 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-10-26 22:41:54,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:41:54,341 INFO L225 Difference]: With dead ends: 4683 [2020-10-26 22:41:54,341 INFO L226 Difference]: Without dead ends: 2473 [2020-10-26 22:41:54,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:41:54,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2020-10-26 22:41:54,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2422. [2020-10-26 22:41:54,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2422 states. [2020-10-26 22:41:54,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 3178 transitions. [2020-10-26 22:41:54,441 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 3178 transitions. Word has length 178 [2020-10-26 22:41:54,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:41:54,442 INFO L481 AbstractCegarLoop]: Abstraction has 2422 states and 3178 transitions. [2020-10-26 22:41:54,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:41:54,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 3178 transitions. [2020-10-26 22:41:54,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-26 22:41:54,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:41:54,447 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:41:54,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 22:41:54,448 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:41:54,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:41:54,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1747459762, now seen corresponding path program 1 times [2020-10-26 22:41:54,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:41:54,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016357161] [2020-10-26 22:41:54,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:41:54,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:54,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:54,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:55,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:55,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:56,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:56,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-10-26 22:41:56,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:41:56,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2174 [2020-10-26 22:41:56,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:41:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-26 22:41:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-26 22:41:56,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:41:56,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:41:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:56,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:56,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:56,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:41:56,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:41:56,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:41:56,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:56,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:41:56,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:41:56,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:41:56,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:41:56,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:41:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:56,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:57,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:57,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-26 22:41:57,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:41:57,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-10-26 22:41:57,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:57,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:41:57,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:41:57,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 22:41:57,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:41:57,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 22:41:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:41:57,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:41:57,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:41:57,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-26 22:41:57,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:41:57,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-26 22:41:57,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:41:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:41:57,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:41:57,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-26 22:41:57,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 22:41:57,468 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 102 proven. 27 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:41:57,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1016357161] [2020-10-26 22:41:57,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:41:57,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:41:57,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072572118] [2020-10-26 22:41:57,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:41:57,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:41:57,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:41:57,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:41:57,471 INFO L87 Difference]: Start difference. First operand 2422 states and 3178 transitions. Second operand 6 states. [2020-10-26 22:42:00,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:00,461 INFO L93 Difference]: Finished difference Result 6047 states and 8282 transitions. [2020-10-26 22:42:00,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:42:00,464 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 231 [2020-10-26 22:42:00,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:00,490 INFO L225 Difference]: With dead ends: 6047 [2020-10-26 22:42:00,491 INFO L226 Difference]: Without dead ends: 3819 [2020-10-26 22:42:00,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:42:00,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2020-10-26 22:42:00,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 3607. [2020-10-26 22:42:00,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3607 states. [2020-10-26 22:42:00,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3607 states to 3607 states and 4871 transitions. [2020-10-26 22:42:00,634 INFO L78 Accepts]: Start accepts. Automaton has 3607 states and 4871 transitions. Word has length 231 [2020-10-26 22:42:00,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:00,637 INFO L481 AbstractCegarLoop]: Abstraction has 3607 states and 4871 transitions. [2020-10-26 22:42:00,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:42:00,637 INFO L276 IsEmpty]: Start isEmpty. Operand 3607 states and 4871 transitions. [2020-10-26 22:42:00,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-10-26 22:42:00,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:00,645 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:00,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 22:42:00,646 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:00,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:00,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1197913435, now seen corresponding path program 1 times [2020-10-26 22:42:00,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:00,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716354527] [2020-10-26 22:42:00,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:00,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:00,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:02,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:02,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-26 22:42:02,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:42:02,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1974 [2020-10-26 22:42:02,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:02,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:02,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-26 22:42:02,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:42:02,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:02,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:02,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:02,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:02,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:02,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:02,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 22:42:02,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:02,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:02,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:02,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:02,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:03,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:03,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:03,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:03,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:42:03,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:03,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-26 22:42:03,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:03,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:03,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-26 22:42:03,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 22:42:03,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 22:42:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:03,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:03,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:03,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:42:03,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:03,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-26 22:42:03,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:03,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:03,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:42:03,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:42:03,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:03,947 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 121 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:42:03,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716354527] [2020-10-26 22:42:03,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:42:03,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 22:42:03,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504386439] [2020-10-26 22:42:03,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:42:03,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:03,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:42:03,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:42:03,951 INFO L87 Difference]: Start difference. First operand 3607 states and 4871 transitions. Second operand 8 states. [2020-10-26 22:42:05,490 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-26 22:42:09,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:09,108 INFO L93 Difference]: Finished difference Result 8071 states and 11185 transitions. [2020-10-26 22:42:09,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 22:42:09,109 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 236 [2020-10-26 22:42:09,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:09,143 INFO L225 Difference]: With dead ends: 8071 [2020-10-26 22:42:09,143 INFO L226 Difference]: Without dead ends: 4658 [2020-10-26 22:42:09,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-26 22:42:09,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2020-10-26 22:42:09,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 4627. [2020-10-26 22:42:09,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4627 states. [2020-10-26 22:42:09,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4627 states to 4627 states and 6115 transitions. [2020-10-26 22:42:09,375 INFO L78 Accepts]: Start accepts. Automaton has 4627 states and 6115 transitions. Word has length 236 [2020-10-26 22:42:09,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:09,376 INFO L481 AbstractCegarLoop]: Abstraction has 4627 states and 6115 transitions. [2020-10-26 22:42:09,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:42:09,376 INFO L276 IsEmpty]: Start isEmpty. Operand 4627 states and 6115 transitions. [2020-10-26 22:42:09,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-10-26 22:42:09,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:09,385 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:09,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 22:42:09,385 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:09,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:09,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1584395574, now seen corresponding path program 1 times [2020-10-26 22:42:09,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:09,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212996676] [2020-10-26 22:42:09,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:09,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:10,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:10,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:10,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-26 22:42:10,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:42:10,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 701 [2020-10-26 22:42:10,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:10,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:10,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 239 [2020-10-26 22:42:10,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-26 22:42:10,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:10,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:10,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:10,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:10,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:10,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:10,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:42:10,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:10,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:10,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:10,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:10,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:10,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:10,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:10,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:10,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 22:42:10,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:10,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-26 22:42:10,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:10,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:10,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:10,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:10,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:10,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-26 22:42:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:10,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:10,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:10,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-26 22:42:10,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:10,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-26 22:42:10,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:10,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:10,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:10,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-26 22:42:10,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:10,960 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 55 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-26 22:42:10,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212996676] [2020-10-26 22:42:10,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:42:10,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:42:10,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376826589] [2020-10-26 22:42:10,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:42:10,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:10,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:42:10,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:42:10,965 INFO L87 Difference]: Start difference. First operand 4627 states and 6115 transitions. Second operand 5 states. [2020-10-26 22:42:12,255 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-26 22:42:13,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:13,262 INFO L93 Difference]: Finished difference Result 9096 states and 12126 transitions. [2020-10-26 22:42:13,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:42:13,263 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 262 [2020-10-26 22:42:13,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:13,293 INFO L225 Difference]: With dead ends: 9096 [2020-10-26 22:42:13,294 INFO L226 Difference]: Without dead ends: 4643 [2020-10-26 22:42:13,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:42:13,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4643 states. [2020-10-26 22:42:13,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4643 to 4625. [2020-10-26 22:42:13,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4625 states. [2020-10-26 22:42:13,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4625 states to 4625 states and 6102 transitions. [2020-10-26 22:42:13,451 INFO L78 Accepts]: Start accepts. Automaton has 4625 states and 6102 transitions. Word has length 262 [2020-10-26 22:42:13,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:13,452 INFO L481 AbstractCegarLoop]: Abstraction has 4625 states and 6102 transitions. [2020-10-26 22:42:13,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:42:13,452 INFO L276 IsEmpty]: Start isEmpty. Operand 4625 states and 6102 transitions. [2020-10-26 22:42:13,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-10-26 22:42:13,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:13,460 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:13,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 22:42:13,461 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:13,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:13,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1054044412, now seen corresponding path program 1 times [2020-10-26 22:42:13,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:13,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1175588117] [2020-10-26 22:42:13,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:13,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:13,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:14,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:15,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:16,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:16,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-26 22:42:16,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:42:16,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2631 [2020-10-26 22:42:16,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:16,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:16,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-10-26 22:42:16,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 22:42:16,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:16,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:16,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:16,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:16,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:16,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:16,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:16,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:42:16,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:16,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:16,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:16,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:16,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:16,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:16,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 148 [2020-10-26 22:42:16,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:16,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-26 22:42:16,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:16,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-26 22:42:16,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:16,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-26 22:42:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:16,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:16,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:16,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-26 22:42:16,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:16,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-26 22:42:16,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:16,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:16,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:42:16,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-26 22:42:16,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:42:16,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1175588117] [2020-10-26 22:42:16,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:42:16,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:42:16,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652362948] [2020-10-26 22:42:16,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:42:16,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:16,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:42:16,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:42:16,894 INFO L87 Difference]: Start difference. First operand 4625 states and 6102 transitions. Second operand 7 states. [2020-10-26 22:42:22,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:22,055 INFO L93 Difference]: Finished difference Result 10467 states and 14018 transitions. [2020-10-26 22:42:22,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 22:42:22,057 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 262 [2020-10-26 22:42:22,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:22,104 INFO L225 Difference]: With dead ends: 10467 [2020-10-26 22:42:22,105 INFO L226 Difference]: Without dead ends: 6036 [2020-10-26 22:42:22,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:42:22,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6036 states. [2020-10-26 22:42:22,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6036 to 5825. [2020-10-26 22:42:22,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5825 states. [2020-10-26 22:42:22,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5825 states to 5825 states and 7617 transitions. [2020-10-26 22:42:22,333 INFO L78 Accepts]: Start accepts. Automaton has 5825 states and 7617 transitions. Word has length 262 [2020-10-26 22:42:22,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:22,334 INFO L481 AbstractCegarLoop]: Abstraction has 5825 states and 7617 transitions. [2020-10-26 22:42:22,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:42:22,334 INFO L276 IsEmpty]: Start isEmpty. Operand 5825 states and 7617 transitions. [2020-10-26 22:42:22,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-10-26 22:42:22,344 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:22,345 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-26 22:42:22,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 22:42:22,345 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:22,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:22,346 INFO L82 PathProgramCache]: Analyzing trace with hash 804230601, now seen corresponding path program 1 times [2020-10-26 22:42:22,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:22,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2059490129] [2020-10-26 22:42:22,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:22,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:22,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:23,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:24,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:24,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 287 [2020-10-26 22:42:24,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:42:24,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2105 [2020-10-26 22:42:24,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:24,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 22:42:24,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-26 22:42:24,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 143 [2020-10-26 22:42:24,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:24,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:24,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:24,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:24,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:24,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:24,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-26 22:42:24,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:24,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:24,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:24,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:24,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:24,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:24,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:24,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:24,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:42:24,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:24,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-26 22:42:24,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:24,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:24,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:24,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-26 22:42:24,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:24,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 22:42:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:25,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:25,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:25,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-26 22:42:25,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:25,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-10-26 22:42:25,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:25,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:25,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:42:25,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-26 22:42:25,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:25,305 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 129 proven. 27 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 22:42:25,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2059490129] [2020-10-26 22:42:25,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:42:25,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:42:25,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101682284] [2020-10-26 22:42:25,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:42:25,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:25,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:42:25,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:42:25,314 INFO L87 Difference]: Start difference. First operand 5825 states and 7617 transitions. Second operand 6 states. [2020-10-26 22:42:28,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:28,511 INFO L93 Difference]: Finished difference Result 13983 states and 19667 transitions. [2020-10-26 22:42:28,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:42:28,512 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 273 [2020-10-26 22:42:28,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:28,558 INFO L225 Difference]: With dead ends: 13983 [2020-10-26 22:42:28,558 INFO L226 Difference]: Without dead ends: 8352 [2020-10-26 22:42:28,576 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 [2020-10-26 22:42:28,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8352 states. [2020-10-26 22:42:28,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8352 to 8217. [2020-10-26 22:42:28,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8217 states. [2020-10-26 22:42:28,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8217 states to 8217 states and 10871 transitions. [2020-10-26 22:42:28,821 INFO L78 Accepts]: Start accepts. Automaton has 8217 states and 10871 transitions. Word has length 273 [2020-10-26 22:42:28,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:28,822 INFO L481 AbstractCegarLoop]: Abstraction has 8217 states and 10871 transitions. [2020-10-26 22:42:28,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:42:28,822 INFO L276 IsEmpty]: Start isEmpty. Operand 8217 states and 10871 transitions. [2020-10-26 22:42:28,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-10-26 22:42:28,832 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:28,832 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:28,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 22:42:28,833 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:28,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:28,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1416228946, now seen corresponding path program 1 times [2020-10-26 22:42:28,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:28,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124827478] [2020-10-26 22:42:28,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:28,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:29,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:30,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:30,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-26 22:42:30,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:42:30,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1679 [2020-10-26 22:42:30,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:30,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:30,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-26 22:42:30,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-26 22:42:30,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:30,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:30,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:30,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:30,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:30,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:30,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:42:30,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:30,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:30,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:30,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:30,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:30,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:30,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:30,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:30,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:42:30,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:30,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-26 22:42:30,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:30,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:30,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:30,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-26 22:42:30,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:30,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 22:42:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:31,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:31,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:31,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-26 22:42:31,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:31,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-26 22:42:31,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:31,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:31,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:42:31,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-26 22:42:31,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:31,467 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 161 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:42:31,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124827478] [2020-10-26 22:42:31,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:42:31,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:42:31,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110894236] [2020-10-26 22:42:31,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:42:31,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:31,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:42:31,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:42:31,470 INFO L87 Difference]: Start difference. First operand 8217 states and 10871 transitions. Second operand 7 states. [2020-10-26 22:42:35,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:35,210 INFO L93 Difference]: Finished difference Result 17239 states and 22911 transitions. [2020-10-26 22:42:35,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 22:42:35,212 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 276 [2020-10-26 22:42:35,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:35,249 INFO L225 Difference]: With dead ends: 17239 [2020-10-26 22:42:35,249 INFO L226 Difference]: Without dead ends: 9216 [2020-10-26 22:42:35,268 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:42:35,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9216 states. [2020-10-26 22:42:35,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9216 to 9175. [2020-10-26 22:42:35,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9175 states. [2020-10-26 22:42:35,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9175 states to 9175 states and 12076 transitions. [2020-10-26 22:42:35,477 INFO L78 Accepts]: Start accepts. Automaton has 9175 states and 12076 transitions. Word has length 276 [2020-10-26 22:42:35,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:35,478 INFO L481 AbstractCegarLoop]: Abstraction has 9175 states and 12076 transitions. [2020-10-26 22:42:35,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:42:35,478 INFO L276 IsEmpty]: Start isEmpty. Operand 9175 states and 12076 transitions. [2020-10-26 22:42:35,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-10-26 22:42:35,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:35,487 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:35,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 22:42:35,488 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:35,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:35,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1433613, now seen corresponding path program 1 times [2020-10-26 22:42:35,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:35,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902144042] [2020-10-26 22:42:35,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:35,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:35,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:37,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:37,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 293 [2020-10-26 22:42:37,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:42:37,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1932 [2020-10-26 22:42:37,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:37,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:37,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-26 22:42:37,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-10-26 22:42:37,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:37,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:37,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:37,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:37,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:37,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:37,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:42:37,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:37,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:42:37,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:37,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:42:37,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:37,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:37,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:37,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:37,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:42:37,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:37,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-26 22:42:37,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:37,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:37,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:37,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-26 22:42:37,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:37,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 22:42:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:37,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:38,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:38,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-26 22:42:38,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:38,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-26 22:42:38,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:38,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:38,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:42:38,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-26 22:42:38,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:38,152 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-26 22:42:38,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902144042] [2020-10-26 22:42:38,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:42:38,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:42:38,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82803915] [2020-10-26 22:42:38,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 22:42:38,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:38,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 22:42:38,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 22:42:38,154 INFO L87 Difference]: Start difference. First operand 9175 states and 12076 transitions. Second operand 7 states. [2020-10-26 22:42:42,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:42,181 INFO L93 Difference]: Finished difference Result 20359 states and 28220 transitions. [2020-10-26 22:42:42,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 22:42:42,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 279 [2020-10-26 22:42:42,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:42,244 INFO L225 Difference]: With dead ends: 20359 [2020-10-26 22:42:42,244 INFO L226 Difference]: Without dead ends: 11378 [2020-10-26 22:42:42,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:42:42,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11378 states. [2020-10-26 22:42:42,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11378 to 11274. [2020-10-26 22:42:42,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11274 states. [2020-10-26 22:42:42,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11274 states to 11274 states and 14671 transitions. [2020-10-26 22:42:42,589 INFO L78 Accepts]: Start accepts. Automaton has 11274 states and 14671 transitions. Word has length 279 [2020-10-26 22:42:42,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:42,589 INFO L481 AbstractCegarLoop]: Abstraction has 11274 states and 14671 transitions. [2020-10-26 22:42:42,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 22:42:42,590 INFO L276 IsEmpty]: Start isEmpty. Operand 11274 states and 14671 transitions. [2020-10-26 22:42:42,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-10-26 22:42:42,600 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:42,601 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:42,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 22:42:42,601 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:42,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:42,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1450035987, now seen corresponding path program 1 times [2020-10-26 22:42:42,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:42,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56555746] [2020-10-26 22:42:42,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:42,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:42,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:43,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:43,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:45,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:47,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:47,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-10-26 22:42:47,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:42:47,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-26 22:42:47,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-26 22:42:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:42:47,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 219 [2020-10-26 22:42:47,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:47,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:47,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:47,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:47,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:47,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:47,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 22:42:47,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:47,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:47,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:47,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:42:47,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:47,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:47,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:48,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:48,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 22:42:48,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:48,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-26 22:42:48,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:48,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:48,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:42:48,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-26 22:42:48,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:48,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-26 22:42:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:48,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:48,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:48,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 22:42:48,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:48,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-26 22:42:48,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:48,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:42:48,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:42:48,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 22:42:48,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:48,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-10-26 22:42:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:48,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:48,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:48,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:48,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:42:48,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:42:48,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-26 22:42:48,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:48,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:42:48,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:42:48,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:42:48,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:48,811 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 85 proven. 140 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-26 22:42:48,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [56555746] [2020-10-26 22:42:48,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:42:48,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-26 22:42:48,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518460710] [2020-10-26 22:42:48,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 22:42:48,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:42:48,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 22:42:48,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:42:48,814 INFO L87 Difference]: Start difference. First operand 11274 states and 14671 transitions. Second operand 10 states. [2020-10-26 22:42:50,784 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2020-10-26 22:42:52,409 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2020-10-26 22:42:54,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:42:54,052 INFO L93 Difference]: Finished difference Result 22479 states and 29668 transitions. [2020-10-26 22:42:54,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-26 22:42:54,053 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 304 [2020-10-26 22:42:54,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:42:54,099 INFO L225 Difference]: With dead ends: 22479 [2020-10-26 22:42:54,100 INFO L226 Difference]: Without dead ends: 11363 [2020-10-26 22:42:54,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2020-10-26 22:42:54,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11363 states. [2020-10-26 22:42:54,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11363 to 11097. [2020-10-26 22:42:54,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11097 states. [2020-10-26 22:42:54,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11097 states to 11097 states and 14447 transitions. [2020-10-26 22:42:54,492 INFO L78 Accepts]: Start accepts. Automaton has 11097 states and 14447 transitions. Word has length 304 [2020-10-26 22:42:54,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:42:54,492 INFO L481 AbstractCegarLoop]: Abstraction has 11097 states and 14447 transitions. [2020-10-26 22:42:54,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 22:42:54,493 INFO L276 IsEmpty]: Start isEmpty. Operand 11097 states and 14447 transitions. [2020-10-26 22:42:54,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-10-26 22:42:54,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:42:54,506 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:42:54,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 22:42:54,506 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:42:54,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:42:54,507 INFO L82 PathProgramCache]: Analyzing trace with hash -190002802, now seen corresponding path program 1 times [2020-10-26 22:42:54,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:42:54,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1582409054] [2020-10-26 22:42:54,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:42:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:54,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:54,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:54,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:55,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:57,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:58,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:58,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:59,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:59,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 332 [2020-10-26 22:42:59,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-26 22:42:59,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-26 22:42:59,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:59,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-26 22:42:59,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:42:59,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 291 [2020-10-26 22:42:59,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:59,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:42:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:59,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:59,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:42:59,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:42:59,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:42:59,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-26 22:42:59,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:42:59,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:42:59,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:42:59,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:42:59,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:42:59,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:42:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:42:59,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:59,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:42:59,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:00,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:00,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:00,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:43:00,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 22:43:00,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-10-26 22:43:00,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:00,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-26 22:43:00,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:00,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 22:43:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:00,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:00,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:00,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:00,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-26 22:43:00,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:43:00,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-26 22:43:00,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:00,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:00,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:00,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-26 22:43:00,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:00,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-10-26 22:43:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:00,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:00,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:00,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-26 22:43:00,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:00,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-26 22:43:00,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:00,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:00,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:00,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-26 22:43:00,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:00,655 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 83 proven. 130 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-26 22:43:00,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1582409054] [2020-10-26 22:43:00,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:43:00,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 22:43:00,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905282719] [2020-10-26 22:43:00,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 22:43:00,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:43:00,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 22:43:00,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 22:43:00,657 INFO L87 Difference]: Start difference. First operand 11097 states and 14447 transitions. Second operand 8 states. [2020-10-26 22:43:03,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:43:03,939 INFO L93 Difference]: Finished difference Result 21074 states and 28309 transitions. [2020-10-26 22:43:03,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 22:43:03,940 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 316 [2020-10-26 22:43:03,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:43:03,979 INFO L225 Difference]: With dead ends: 21074 [2020-10-26 22:43:03,979 INFO L226 Difference]: Without dead ends: 10171 [2020-10-26 22:43:03,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-26 22:43:04,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10171 states. [2020-10-26 22:43:04,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10171 to 9857. [2020-10-26 22:43:04,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9857 states. [2020-10-26 22:43:04,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9857 states to 9857 states and 11852 transitions. [2020-10-26 22:43:04,231 INFO L78 Accepts]: Start accepts. Automaton has 9857 states and 11852 transitions. Word has length 316 [2020-10-26 22:43:04,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:43:04,232 INFO L481 AbstractCegarLoop]: Abstraction has 9857 states and 11852 transitions. [2020-10-26 22:43:04,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 22:43:04,232 INFO L276 IsEmpty]: Start isEmpty. Operand 9857 states and 11852 transitions. [2020-10-26 22:43:04,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-10-26 22:43:04,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:43:04,245 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:43:04,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 22:43:04,245 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:43:04,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:43:04,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1255283085, now seen corresponding path program 1 times [2020-10-26 22:43:04,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:43:04,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960483071] [2020-10-26 22:43:04,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:43:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:04,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:04,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:04,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:06,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:08,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:08,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:09,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:09,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-10-26 22:43:09,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 22:43:09,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-26 22:43:09,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:09,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 22:43:09,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:43:09,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 342 [2020-10-26 22:43:09,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:09,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:43:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:09,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:09,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:09,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:43:09,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:09,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 22:43:09,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:09,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:43:09,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:09,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:43:09,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:09,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:43:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:09,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:09,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:09,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-26 22:43:09,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:09,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-26 22:43:09,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:09,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:09,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:09,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-10-26 22:43:09,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:09,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-10-26 22:43:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:09,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:10,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:10,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-26 22:43:10,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:10,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-26 22:43:10,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:10,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:43:10,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:10,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-26 22:43:10,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:10,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-26 22:43:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:10,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:10,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:10,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:10,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:10,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-26 22:43:10,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 22:43:10,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 173 [2020-10-26 22:43:10,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:10,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:10,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:10,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-26 22:43:10,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:10,815 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 80 proven. 249 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-26 22:43:10,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960483071] [2020-10-26 22:43:10,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:43:10,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-26 22:43:10,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779357966] [2020-10-26 22:43:10,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 22:43:10,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:43:10,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 22:43:10,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-26 22:43:10,817 INFO L87 Difference]: Start difference. First operand 9857 states and 11852 transitions. Second operand 12 states. [2020-10-26 22:43:12,001 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-10-26 22:43:13,777 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-10-26 22:43:16,720 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-10-26 22:43:20,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:43:20,671 INFO L93 Difference]: Finished difference Result 27982 states and 35017 transitions. [2020-10-26 22:43:20,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-26 22:43:20,673 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 335 [2020-10-26 22:43:20,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:43:20,735 INFO L225 Difference]: With dead ends: 27982 [2020-10-26 22:43:20,736 INFO L226 Difference]: Without dead ends: 17677 [2020-10-26 22:43:20,760 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=297, Invalid=893, Unknown=0, NotChecked=0, Total=1190 [2020-10-26 22:43:20,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17677 states. [2020-10-26 22:43:21,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17677 to 14495. [2020-10-26 22:43:21,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14495 states. [2020-10-26 22:43:21,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14495 states to 14495 states and 17509 transitions. [2020-10-26 22:43:21,303 INFO L78 Accepts]: Start accepts. Automaton has 14495 states and 17509 transitions. Word has length 335 [2020-10-26 22:43:21,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:43:21,304 INFO L481 AbstractCegarLoop]: Abstraction has 14495 states and 17509 transitions. [2020-10-26 22:43:21,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 22:43:21,304 INFO L276 IsEmpty]: Start isEmpty. Operand 14495 states and 17509 transitions. [2020-10-26 22:43:21,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2020-10-26 22:43:21,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:43:21,329 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:43:21,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 22:43:21,329 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:43:21,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:43:21,330 INFO L82 PathProgramCache]: Analyzing trace with hash -139515620, now seen corresponding path program 1 times [2020-10-26 22:43:21,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:43:21,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4602406] [2020-10-26 22:43:21,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:43:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:21,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:21,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:21,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:22,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:22,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:26,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:26,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 456 [2020-10-26 22:43:26,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 22:43:26,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-26 22:43:26,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:26,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:26,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 258 [2020-10-26 22:43:26,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-26 22:43:26,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:26,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:43:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:26,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:26,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:26,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:43:26,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:26,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 22:43:26,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:26,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:43:26,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:26,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:43:26,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:26,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:43:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:26,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:26,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:26,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-26 22:43:26,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:26,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-26 22:43:26,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:26,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:43:26,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:26,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:43:26,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:26,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 22:43:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:26,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:27,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:27,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-26 22:43:27,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:27,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-26 22:43:27,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:27,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:43:27,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:27,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-26 22:43:27,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:27,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2020-10-26 22:43:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:27,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:27,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:27,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:27,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-26 22:43:27,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 22:43:27,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-26 22:43:27,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:27,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:27,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:27,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-26 22:43:27,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:28,264 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 326 proven. 2 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-26 22:43:28,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [4602406] [2020-10-26 22:43:28,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:43:28,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-26 22:43:28,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856223280] [2020-10-26 22:43:28,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 22:43:28,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:43:28,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 22:43:28,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:43:28,267 INFO L87 Difference]: Start difference. First operand 14495 states and 17509 transitions. Second operand 6 states. [2020-10-26 22:43:29,846 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-26 22:43:31,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:43:31,012 INFO L93 Difference]: Finished difference Result 26899 states and 32595 transitions. [2020-10-26 22:43:31,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 22:43:31,013 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 440 [2020-10-26 22:43:31,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:43:31,062 INFO L225 Difference]: With dead ends: 26899 [2020-10-26 22:43:31,062 INFO L226 Difference]: Without dead ends: 14516 [2020-10-26 22:43:31,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-26 22:43:31,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14516 states. [2020-10-26 22:43:31,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14516 to 14493. [2020-10-26 22:43:31,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14493 states. [2020-10-26 22:43:31,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14493 states to 14493 states and 17466 transitions. [2020-10-26 22:43:31,393 INFO L78 Accepts]: Start accepts. Automaton has 14493 states and 17466 transitions. Word has length 440 [2020-10-26 22:43:31,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:43:31,394 INFO L481 AbstractCegarLoop]: Abstraction has 14493 states and 17466 transitions. [2020-10-26 22:43:31,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 22:43:31,394 INFO L276 IsEmpty]: Start isEmpty. Operand 14493 states and 17466 transitions. [2020-10-26 22:43:31,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2020-10-26 22:43:31,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:43:31,424 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:43:31,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 22:43:31,424 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:43:31,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:43:31,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1774547312, now seen corresponding path program 1 times [2020-10-26 22:43:31,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:43:31,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336666309] [2020-10-26 22:43:31,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:43:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:31,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:31,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:32,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:33,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:33,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:34,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:36,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:36,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 480 [2020-10-26 22:43:36,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 22:43:36,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-26 22:43:36,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:36,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-26 22:43:36,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 22:43:36,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 439 [2020-10-26 22:43:36,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:36,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:43:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:36,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:36,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:36,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:43:36,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:36,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 22:43:36,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:43:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:36,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 22:43:36,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:36,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:43:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:36,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:37,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:37,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-26 22:43:37,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:37,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-10-26 22:43:37,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:37,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-26 22:43:37,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:37,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-26 22:43:37,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:37,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-26 22:43:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:37,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:37,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:37,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-26 22:43:37,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:37,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-26 22:43:37,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:37,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:37,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:37,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-26 22:43:37,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:37,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2020-10-26 22:43:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:37,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:37,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:37,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-26 22:43:37,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:37,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-26 22:43:37,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:37,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:37,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 22:43:37,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-26 22:43:37,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:38,185 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 89 proven. 260 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2020-10-26 22:43:38,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336666309] [2020-10-26 22:43:38,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:43:38,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-26 22:43:38,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320101942] [2020-10-26 22:43:38,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 22:43:38,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:43:38,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 22:43:38,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-26 22:43:38,187 INFO L87 Difference]: Start difference. First operand 14493 states and 17466 transitions. Second operand 10 states. [2020-10-26 22:43:46,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:43:46,100 INFO L93 Difference]: Finished difference Result 33062 states and 41463 transitions. [2020-10-26 22:43:46,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-26 22:43:46,102 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 464 [2020-10-26 22:43:46,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:43:46,186 INFO L225 Difference]: With dead ends: 33062 [2020-10-26 22:43:46,187 INFO L226 Difference]: Without dead ends: 20695 [2020-10-26 22:43:46,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2020-10-26 22:43:46,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20695 states. [2020-10-26 22:43:46,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20695 to 19912. [2020-10-26 22:43:46,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19912 states. [2020-10-26 22:43:46,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19912 states to 19912 states and 23967 transitions. [2020-10-26 22:43:46,728 INFO L78 Accepts]: Start accepts. Automaton has 19912 states and 23967 transitions. Word has length 464 [2020-10-26 22:43:46,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:43:46,729 INFO L481 AbstractCegarLoop]: Abstraction has 19912 states and 23967 transitions. [2020-10-26 22:43:46,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 22:43:46,729 INFO L276 IsEmpty]: Start isEmpty. Operand 19912 states and 23967 transitions. [2020-10-26 22:43:46,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2020-10-26 22:43:46,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 22:43:46,763 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 22:43:46,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 22:43:46,763 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 22:43:46,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 22:43:46,764 INFO L82 PathProgramCache]: Analyzing trace with hash 217455373, now seen corresponding path program 1 times [2020-10-26 22:43:46,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 22:43:46,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [936592393] [2020-10-26 22:43:46,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 22:43:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:47,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:47,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:47,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 490 [2020-10-26 22:43:47,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:47,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-10-26 22:43:47,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:47,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 22:43:47,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 452 [2020-10-26 22:43:47,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 22:43:47,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:47,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 22:43:47,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:47,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:47,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:47,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 22:43:47,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:47,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 22:43:47,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:47,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:43:47,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:47,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:43:47,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:47,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 22:43:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:47,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:47,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:47,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-26 22:43:47,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:47,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 22:43:47,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:47,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:43:47,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:47,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:43:47,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:47,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-26 22:43:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:47,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:47,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:47,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-26 22:43:47,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:47,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 22:43:47,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:47,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 22:43:47,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:47,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 22:43:47,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:47,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-10-26 22:43:47,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 22:43:47,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 22:43:48,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 22:43:48,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-26 22:43:48,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 22:43:48,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-26 22:43:48,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 22:43:48,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 22:43:48,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 22:43:48,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-26 22:43:48,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 22:43:48,266 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2020-10-26 22:43:48,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [936592393] [2020-10-26 22:43:48,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 22:43:48,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 22:43:48,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873429779] [2020-10-26 22:43:48,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 22:43:48,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 22:43:48,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 22:43:48,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 22:43:48,269 INFO L87 Difference]: Start difference. First operand 19912 states and 23967 transitions. Second operand 5 states. [2020-10-26 22:43:48,414 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-10-26 22:43:51,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 22:43:51,247 INFO L93 Difference]: Finished difference Result 22758 states and 27475 transitions. [2020-10-26 22:43:51,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 22:43:51,248 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 474 [2020-10-26 22:43:51,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 22:43:51,249 INFO L225 Difference]: With dead ends: 22758 [2020-10-26 22:43:51,249 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 22:43:51,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 22:43:51,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 22:43:51,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 22:43:51,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 22:43:51,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 22:43:51,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 474 [2020-10-26 22:43:51,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 22:43:51,276 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 22:43:51,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 22:43:51,277 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 22:43:51,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 22:43:51,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 22:43:51,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 22:43:54,983 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 751 DAG size of output: 464 [2020-10-26 22:43:56,244 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 751 DAG size of output: 464 [2020-10-26 22:43:56,772 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 28 [2020-10-26 22:44:00,389 WARN L193 SmtUtils]: Spent 3.58 s on a formula simplification. DAG size of input: 518 DAG size of output: 60 [2020-10-26 22:44:02,962 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 378 DAG size of output: 50 [2020-10-26 22:44:05,816 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 378 DAG size of output: 50 [2020-10-26 22:44:07,768 WARN L193 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 293 DAG size of output: 46 [2020-10-26 22:44:07,773 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 22:44:07,774 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 22:44:07,774 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 22:44:07,774 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 22:44:07,774 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:44:07,774 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)|) (= ~inputA~0 |old(~inputA~0)|) (= ~a25~0 |old(~a25~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a23~0 |old(~a23~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a29~0 |old(~a29~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |old(#valid)| |#valid|) (= ~a3~0 |old(~a3~0)|) (= |#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)|)) [2020-10-26 22:44:07,775 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:44:07,775 INFO L274 CegarLoopResult]: For program point L960(lines 960 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,775 INFO L274 CegarLoopResult]: For program point L696(lines 696 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,775 INFO L274 CegarLoopResult]: For program point L630(lines 630 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,775 INFO L274 CegarLoopResult]: For program point L895(lines 895 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,775 INFO L274 CegarLoopResult]: For program point L697(lines 697 707) no Hoare annotation was computed. [2020-10-26 22:44:07,776 INFO L274 CegarLoopResult]: For program point L697-2(lines 697 707) no Hoare annotation was computed. [2020-10-26 22:44:07,776 INFO L274 CegarLoopResult]: For program point L367(lines 367 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,776 INFO L274 CegarLoopResult]: For program point L301(lines 301 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,776 INFO L274 CegarLoopResult]: For program point L235(lines 235 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,776 INFO L274 CegarLoopResult]: For program point L169-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,776 INFO L274 CegarLoopResult]: For program point L103-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,777 INFO L274 CegarLoopResult]: For program point L37-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,777 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-10-26 22:44:07,777 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-10-26 22:44:07,777 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-10-26 22:44:07,777 INFO L274 CegarLoopResult]: For program point L568(lines 568 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,777 INFO L274 CegarLoopResult]: For program point L502(lines 502 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,777 INFO L274 CegarLoopResult]: For program point L172-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,777 INFO L274 CegarLoopResult]: For program point L106-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,777 INFO L274 CegarLoopResult]: For program point L40-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,777 INFO L274 CegarLoopResult]: For program point L965(lines 965 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,777 INFO L274 CegarLoopResult]: For program point L833(lines 833 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,777 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-10-26 22:44:07,777 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-10-26 22:44:07,777 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-10-26 22:44:07,777 INFO L274 CegarLoopResult]: For program point L900(lines 900 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L438(lines 438 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L372(lines 372 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L637(lines 637 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L307(lines 307 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L175-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L109-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L43-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L242(lines 242 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L771(lines 771 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L838(lines 838 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L574(lines 574 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L178-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L112-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,778 INFO L274 CegarLoopResult]: For program point L46-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,779 INFO L274 CegarLoopResult]: For program point L971(lines 971 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,779 INFO L274 CegarLoopResult]: For program point L905(lines 905 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,779 INFO L274 CegarLoopResult]: For program point L509(lines 509 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,779 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-10-26 22:44:07,779 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-10-26 22:44:07,779 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-10-26 22:44:07,779 INFO L274 CegarLoopResult]: For program point L972(lines 972 982) no Hoare annotation was computed. [2020-10-26 22:44:07,779 INFO L274 CegarLoopResult]: For program point L906(lines 906 916) no Hoare annotation was computed. [2020-10-26 22:44:07,779 INFO L274 CegarLoopResult]: For program point L972-2(lines 972 982) no Hoare annotation was computed. [2020-10-26 22:44:07,779 INFO L274 CegarLoopResult]: For program point L906-2(lines 906 916) no Hoare annotation was computed. [2020-10-26 22:44:07,780 INFO L274 CegarLoopResult]: For program point L708(lines 708 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,780 INFO L274 CegarLoopResult]: For program point L312(lines 312 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,780 INFO L274 CegarLoopResult]: For program point L577(lines 577 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,780 INFO L274 CegarLoopResult]: For program point L445(lines 445 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,780 INFO L274 CegarLoopResult]: For program point L379(lines 379 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,780 INFO L274 CegarLoopResult]: For program point L181-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,780 INFO L274 CegarLoopResult]: For program point L115-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,780 INFO L274 CegarLoopResult]: For program point L49-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,780 INFO L274 CegarLoopResult]: For program point L776(lines 776 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,780 INFO L274 CegarLoopResult]: For program point L644(lines 644 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,780 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-10-26 22:44:07,780 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-10-26 22:44:07,781 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-10-26 22:44:07,781 INFO L274 CegarLoopResult]: For program point L843(lines 843 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,781 INFO L274 CegarLoopResult]: For program point L249(lines 249 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,781 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,781 INFO L274 CegarLoopResult]: For program point L184-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,781 INFO L274 CegarLoopResult]: For program point L118-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,781 INFO L274 CegarLoopResult]: For program point L52-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,781 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-10-26 22:44:07,781 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-10-26 22:44:07,781 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-10-26 22:44:07,781 INFO L274 CegarLoopResult]: For program point L714(lines 714 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,781 INFO L274 CegarLoopResult]: For program point L516(lines 516 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,782 INFO L274 CegarLoopResult]: For program point L649(lines 649 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,782 INFO L274 CegarLoopResult]: For program point L583(lines 583 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,782 INFO L274 CegarLoopResult]: For program point L517(lines 517 527) no Hoare annotation was computed. [2020-10-26 22:44:07,782 INFO L274 CegarLoopResult]: For program point L517-2(lines 517 527) no Hoare annotation was computed. [2020-10-26 22:44:07,782 INFO L274 CegarLoopResult]: For program point L319(lines 319 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,782 INFO L274 CegarLoopResult]: For program point L187-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,782 INFO L274 CegarLoopResult]: For program point L121-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,782 INFO L274 CegarLoopResult]: For program point L55-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,782 INFO L274 CegarLoopResult]: For program point L848(lines 848 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,782 INFO L274 CegarLoopResult]: For program point L782(lines 782 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,782 INFO L274 CegarLoopResult]: For program point L650(lines 650 659) no Hoare annotation was computed. [2020-10-26 22:44:07,782 INFO L274 CegarLoopResult]: For program point L650-2(lines 650 659) no Hoare annotation was computed. [2020-10-26 22:44:07,783 INFO L274 CegarLoopResult]: For program point L452(lines 452 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,783 INFO L274 CegarLoopResult]: For program point L386(lines 386 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,783 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-10-26 22:44:07,783 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-10-26 22:44:07,783 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-10-26 22:44:07,783 INFO L274 CegarLoopResult]: For program point L256(lines 256 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,783 INFO L274 CegarLoopResult]: For program point L190-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,783 INFO L274 CegarLoopResult]: For program point L124-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,783 INFO L274 CegarLoopResult]: For program point L58-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,783 INFO L274 CegarLoopResult]: For program point L983(lines 983 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,783 INFO L274 CegarLoopResult]: For program point L917(lines 917 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,783 INFO L274 CegarLoopResult]: For program point L719(lines 719 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,784 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-10-26 22:44:07,784 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-10-26 22:44:07,784 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-10-26 22:44:07,784 INFO L274 CegarLoopResult]: For program point L918(lines 918 928) no Hoare annotation was computed. [2020-10-26 22:44:07,784 INFO L274 CegarLoopResult]: For program point L918-2(lines 918 928) no Hoare annotation was computed. [2020-10-26 22:44:07,784 INFO L274 CegarLoopResult]: For program point L720(lines 720 732) no Hoare annotation was computed. [2020-10-26 22:44:07,784 INFO L274 CegarLoopResult]: For program point L720-2(lines 720 732) no Hoare annotation was computed. [2020-10-26 22:44:07,784 INFO L274 CegarLoopResult]: For program point L588(lines 588 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,784 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 24 1028) the Hoare annotation is: (let ((.cse1 (= ~a25~0 |old(~a25~0)|)) (.cse2 (= ~a23~0 |old(~a23~0)|)) (.cse3 (= ~a29~0 |old(~a29~0)|))) (let ((.cse0 (not (= |old(~a4~0)| 1))) (.cse6 (and .cse1 .cse2 .cse3 (= ~a4~0 1))) (.cse4 (and (= ~a4~0 0) .cse1 .cse2 .cse3)) (.cse5 (not (= |old(~a4~0)| 0)))) (and (or .cse0 (not (<= 306 |old(~a23~0)|)) (and .cse1 .cse2 .cse3 (= ~a4~0 |old(~a4~0)|))) (or (not (<= 12 |old(~a25~0)|)) .cse4 (not (<= |old(~a29~0)| 274)) (not (<= |old(~a25~0)| 12)) .cse5) (or .cse4 (not (<= |old(~a23~0)| 312)) .cse5) (or .cse0 .cse6 (and (not (<= |old(~a29~0)| 245)) (not (<= 278 |old(~a29~0)|)))) (or .cse0 .cse6 (= 13 |old(~a25~0)|)) (or (not (<= |old(~a25~0)| 10)) .cse4 (not (<= |old(~a29~0)| 130)) .cse5)))) [2020-10-26 22:44:07,785 INFO L274 CegarLoopResult]: For program point L324(lines 324 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,785 INFO L274 CegarLoopResult]: For program point L589(lines 589 599) no Hoare annotation was computed. [2020-10-26 22:44:07,785 INFO L274 CegarLoopResult]: For program point L589-2(lines 589 599) no Hoare annotation was computed. [2020-10-26 22:44:07,785 INFO L274 CegarLoopResult]: For program point L193-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,785 INFO L274 CegarLoopResult]: For program point L127-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,785 INFO L274 CegarLoopResult]: For program point L61-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,785 INFO L274 CegarLoopResult]: For program point L854(lines 854 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,785 INFO L274 CegarLoopResult]: For program point L458(lines 458 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,785 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-10-26 22:44:07,785 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-10-26 22:44:07,785 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-10-26 22:44:07,785 INFO L274 CegarLoopResult]: For program point L789(lines 789 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,785 INFO L274 CegarLoopResult]: For program point L393(lines 393 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,786 INFO L274 CegarLoopResult]: For program point L262(lines 262 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,786 INFO L274 CegarLoopResult]: For program point L196-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,786 INFO L274 CegarLoopResult]: For program point L130-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,786 INFO L274 CegarLoopResult]: For program point L64-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,786 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-10-26 22:44:07,786 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-10-26 22:44:07,786 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-10-26 22:44:07,786 INFO L274 CegarLoopResult]: For program point L990(lines 990 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,786 INFO L274 CegarLoopResult]: For program point L660(lines 660 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,786 INFO L274 CegarLoopResult]: For program point L528(lines 528 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,786 INFO L274 CegarLoopResult]: For program point L331(lines 331 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,786 INFO L274 CegarLoopResult]: For program point L199-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,787 INFO L274 CegarLoopResult]: For program point L133-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,787 INFO L274 CegarLoopResult]: For program point L67-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,787 INFO L274 CegarLoopResult]: For program point L794(lines 794 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,787 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-10-26 22:44:07,787 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-10-26 22:44:07,787 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-10-26 22:44:07,787 INFO L274 CegarLoopResult]: For program point L861(lines 861 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,787 INFO L274 CegarLoopResult]: For program point L465(lines 465 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,787 INFO L274 CegarLoopResult]: For program point L267(lines 267 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,787 INFO L274 CegarLoopResult]: For program point L400(lines 400 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,787 INFO L274 CegarLoopResult]: For program point L202-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,787 INFO L274 CegarLoopResult]: For program point L136-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,787 INFO L274 CegarLoopResult]: For program point L70-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,788 INFO L274 CegarLoopResult]: For program point L995(lines 995 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,788 INFO L274 CegarLoopResult]: For program point L929(lines 929 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,788 INFO L274 CegarLoopResult]: For program point L665(lines 665 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,788 INFO L274 CegarLoopResult]: For program point L533(lines 533 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,788 INFO L274 CegarLoopResult]: For program point L401(lines 401 412) no Hoare annotation was computed. [2020-10-26 22:44:07,788 INFO L274 CegarLoopResult]: For program point L401-2(lines 401 412) no Hoare annotation was computed. [2020-10-26 22:44:07,788 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-10-26 22:44:07,788 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-10-26 22:44:07,788 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-10-26 22:44:07,788 INFO L274 CegarLoopResult]: For program point L600(lines 600 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,788 INFO L274 CegarLoopResult]: For program point L336(lines 336 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,788 INFO L274 CegarLoopResult]: For program point L270(lines 270 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,788 INFO L274 CegarLoopResult]: For program point L733(lines 733 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,789 INFO L274 CegarLoopResult]: For program point L205-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,789 INFO L274 CegarLoopResult]: For program point L139-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,789 INFO L274 CegarLoopResult]: For program point L73-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,789 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-10-26 22:44:07,789 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-10-26 22:44:07,789 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-10-26 22:44:07,789 INFO L274 CegarLoopResult]: For program point L867(lines 867 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,789 INFO L274 CegarLoopResult]: For program point L801(lines 801 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,789 INFO L274 CegarLoopResult]: For program point L934(lines 934 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,789 INFO L274 CegarLoopResult]: For program point L868(lines 868 877) no Hoare annotation was computed. [2020-10-26 22:44:07,789 INFO L274 CegarLoopResult]: For program point L868-2(lines 868 877) no Hoare annotation was computed. [2020-10-26 22:44:07,789 INFO L274 CegarLoopResult]: For program point L472(lines 472 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,789 INFO L274 CegarLoopResult]: For program point L142-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,790 INFO L274 CegarLoopResult]: For program point L76-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,790 INFO L274 CegarLoopResult]: For program point L605(lines 605 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,790 INFO L274 CegarLoopResult]: For program point L539(lines 539 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,790 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-10-26 22:44:07,790 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-10-26 22:44:07,790 INFO L274 CegarLoopResult]: For program point L1002(lines 1002 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,790 INFO L274 CegarLoopResult]: For program point L672(lines 672 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,790 INFO L274 CegarLoopResult]: For program point L606(lines 606 616) no Hoare annotation was computed. [2020-10-26 22:44:07,790 INFO L274 CegarLoopResult]: For program point L606-2(lines 606 616) no Hoare annotation was computed. [2020-10-26 22:44:07,790 INFO L274 CegarLoopResult]: For program point L342(lines 342 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,790 INFO L274 CegarLoopResult]: For program point L277(lines 277 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,790 INFO L274 CegarLoopResult]: For program point L145-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,790 INFO L274 CegarLoopResult]: For program point L79-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,790 INFO L274 CegarLoopResult]: For program point L806(lines 806 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,791 INFO L274 CegarLoopResult]: For program point L740(lines 740 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,791 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-10-26 22:44:07,791 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-10-26 22:44:07,791 INFO L274 CegarLoopResult]: For program point L807(lines 807 817) no Hoare annotation was computed. [2020-10-26 22:44:07,791 INFO L274 CegarLoopResult]: For program point L807-2(lines 807 817) no Hoare annotation was computed. [2020-10-26 22:44:07,791 INFO L274 CegarLoopResult]: For program point L544(lines 544 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,791 INFO L274 CegarLoopResult]: For program point L148-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,791 INFO L274 CegarLoopResult]: For program point L82-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,791 INFO L274 CegarLoopResult]: For program point L1007(lines 1007 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,791 INFO L274 CegarLoopResult]: For program point L941(lines 941 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,791 INFO L274 CegarLoopResult]: For program point L677(lines 677 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,791 INFO L274 CegarLoopResult]: For program point L479(lines 479 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,791 INFO L274 CegarLoopResult]: For program point L413(lines 413 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,792 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-10-26 22:44:07,792 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-10-26 22:44:07,792 INFO L274 CegarLoopResult]: For program point L942(lines 942 954) no Hoare annotation was computed. [2020-10-26 22:44:07,792 INFO L274 CegarLoopResult]: For program point L942-2(lines 942 954) no Hoare annotation was computed. [2020-10-26 22:44:07,792 INFO L274 CegarLoopResult]: For program point L480(lines 480 488) no Hoare annotation was computed. [2020-10-26 22:44:07,792 INFO L274 CegarLoopResult]: For program point L480-2(lines 480 488) no Hoare annotation was computed. [2020-10-26 22:44:07,792 INFO L274 CegarLoopResult]: For program point L348(lines 348 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,792 INFO L274 CegarLoopResult]: For program point L282(lines 282 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,792 INFO L274 CegarLoopResult]: For program point L216(lines 216 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,792 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,792 INFO L274 CegarLoopResult]: For program point L745(lines 745 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,792 INFO L274 CegarLoopResult]: For program point L151-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,792 INFO L274 CegarLoopResult]: For program point L85-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,792 INFO L274 CegarLoopResult]: For program point L878(lines 878 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,793 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-10-26 22:44:07,793 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-10-26 22:44:07,793 INFO L274 CegarLoopResult]: For program point L154-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,793 INFO L274 CegarLoopResult]: For program point L88-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,793 INFO L274 CegarLoopResult]: For program point L683(lines 683 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,793 INFO L274 CegarLoopResult]: For program point L617(lines 617 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,793 INFO L274 CegarLoopResult]: For program point L551(lines 551 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,793 INFO L274 CegarLoopResult]: For program point L419(lines 419 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,793 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-10-26 22:44:07,793 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-10-26 22:44:07,793 INFO L274 CegarLoopResult]: For program point L1014(lines 1014 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,793 INFO L274 CegarLoopResult]: For program point L883(lines 883 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,793 INFO L274 CegarLoopResult]: For program point L355(lines 355 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,794 INFO L274 CegarLoopResult]: For program point L289(lines 289 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,794 INFO L274 CegarLoopResult]: For program point L223(lines 223 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,794 INFO L274 CegarLoopResult]: For program point L157-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,794 INFO L274 CegarLoopResult]: For program point L91-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,794 INFO L274 CegarLoopResult]: For program point L25(lines 25 27) no Hoare annotation was computed. [2020-10-26 22:44:07,794 INFO L274 CegarLoopResult]: For program point L25-2(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,794 INFO L274 CegarLoopResult]: For program point L818(lines 818 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,794 INFO L274 CegarLoopResult]: For program point L752(lines 752 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,794 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-10-26 22:44:07,794 INFO L270 CegarLoopResult]: At program point L92(line 92) the Hoare annotation is: (let ((.cse1 (not (= |old(~a4~0)| 1))) (.cse0 (not (= |old(~a4~0)| 0)))) (and (or (not (<= 12 |old(~a25~0)|)) (not (<= |old(~a29~0)| 274)) (not (<= |old(~a25~0)| 12)) .cse0) (or (not (<= |old(~a25~0)| 10)) (not (<= |old(~a29~0)| 130)) .cse0) (or .cse1 (= 13 |old(~a25~0)|)) (or .cse1 (and (not (<= |old(~a29~0)| 245)) (not (<= 278 |old(~a29~0)|)))) (or .cse1 (not (<= 306 |old(~a23~0)|))) (or (not (<= |old(~a23~0)| 312)) .cse0))) [2020-10-26 22:44:07,794 INFO L274 CegarLoopResult]: For program point L92-1(line 92) no Hoare annotation was computed. [2020-10-26 22:44:07,795 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-10-26 22:44:07,795 INFO L274 CegarLoopResult]: For program point L489(lines 489 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,795 INFO L274 CegarLoopResult]: For program point L490(lines 490 501) no Hoare annotation was computed. [2020-10-26 22:44:07,795 INFO L274 CegarLoopResult]: For program point L424(lines 424 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,795 INFO L274 CegarLoopResult]: For program point L490-2(lines 490 501) no Hoare annotation was computed. [2020-10-26 22:44:07,795 INFO L274 CegarLoopResult]: For program point L160-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,795 INFO L274 CegarLoopResult]: For program point L94-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,795 INFO L274 CegarLoopResult]: For program point L28-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,795 INFO L274 CegarLoopResult]: For program point L1019(lines 1019 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,795 INFO L274 CegarLoopResult]: For program point L623(lines 623 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,795 INFO L274 CegarLoopResult]: For program point L557(lines 557 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,796 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-10-26 22:44:07,796 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-10-26 22:44:07,796 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-10-26 22:44:07,796 INFO L274 CegarLoopResult]: For program point L888(lines 888 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,796 INFO L274 CegarLoopResult]: For program point L690(lines 690 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,796 INFO L274 CegarLoopResult]: For program point L360(lines 360 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,796 INFO L274 CegarLoopResult]: For program point L955(lines 955 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,796 INFO L274 CegarLoopResult]: For program point L229(lines 229 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,796 INFO L274 CegarLoopResult]: For program point L163-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,796 INFO L274 CegarLoopResult]: For program point L97-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,797 INFO L274 CegarLoopResult]: For program point L31-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,797 INFO L274 CegarLoopResult]: For program point L824(lines 824 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,797 INFO L274 CegarLoopResult]: For program point L296(lines 296 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,797 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-10-26 22:44:07,797 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-10-26 22:44:07,797 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-26 22:44:07,797 INFO L274 CegarLoopResult]: For program point L759(lines 759 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,797 INFO L274 CegarLoopResult]: For program point L760(lines 760 770) no Hoare annotation was computed. [2020-10-26 22:44:07,797 INFO L274 CegarLoopResult]: For program point L760-2(lines 760 770) no Hoare annotation was computed. [2020-10-26 22:44:07,797 INFO L274 CegarLoopResult]: For program point L166-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,797 INFO L274 CegarLoopResult]: For program point L100-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,797 INFO L274 CegarLoopResult]: For program point L34-1(lines 24 1028) no Hoare annotation was computed. [2020-10-26 22:44:07,798 INFO L274 CegarLoopResult]: For program point L827(lines 827 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,798 INFO L274 CegarLoopResult]: For program point L563(lines 563 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,798 INFO L274 CegarLoopResult]: For program point L431(lines 431 1026) no Hoare annotation was computed. [2020-10-26 22:44:07,798 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-10-26 22:44:07,798 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-10-26 22:44:07,798 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-10-26 22:44:07,798 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 22:44:07,798 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a25~0 10) (<= 312 ~a23~0) (<= ~a23~0 312) (<= ~a29~0 130) (= ~a4~0 1)) [2020-10-26 22:44:07,798 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 22:44:07,798 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 22:44:07,798 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 1030 1046) the Hoare annotation is: (or (not (= |old(~a4~0)| 1)) (not (<= |old(~a25~0)| 10)) (and (= ~a25~0 |old(~a25~0)|) (= ~a23~0 |old(~a23~0)|) (= ~a29~0 |old(~a29~0)|) (= ~a4~0 1)) (not (<= |old(~a23~0)| 312)) (not (<= |old(~a29~0)| 130)) (not (<= 312 |old(~a23~0)|))) [2020-10-26 22:44:07,799 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 1030 1046) no Hoare annotation was computed. [2020-10-26 22:44:07,799 INFO L270 CegarLoopResult]: At program point L1044(line 1044) the Hoare annotation is: (let ((.cse0 (= ~a4~0 0)) (.cse1 (= ~a4~0 1))) (or (not (= |old(~a4~0)| 1)) (not (<= |old(~a25~0)| 10)) (and .cse0 (<= ~a25~0 12) (<= ~a29~0 274) (<= 12 ~a25~0)) (and .cse1 (not (= ~a25~0 13))) (and .cse0 (<= ~a23~0 312)) (not (<= |old(~a23~0)| 312)) (and (or (<= 278 ~a29~0) (<= ~a29~0 245)) .cse1) (and (<= ~a25~0 10) .cse0 (<= ~a29~0 130)) (not (<= 312 |old(~a23~0)|)) (not (<= |old(~a29~0)| 130)) (and (<= 306 ~a23~0) .cse1))) [2020-10-26 22:44:07,799 INFO L274 CegarLoopResult]: For program point L1044-1(line 1044) no Hoare annotation was computed. [2020-10-26 22:44:07,799 INFO L274 CegarLoopResult]: For program point L1041(line 1041) no Hoare annotation was computed. [2020-10-26 22:44:07,799 INFO L270 CegarLoopResult]: At program point L1036-2(lines 1036 1045) the Hoare annotation is: (let ((.cse0 (= ~a4~0 0)) (.cse1 (= ~a4~0 1))) (or (not (= |old(~a4~0)| 1)) (not (<= |old(~a25~0)| 10)) (and .cse0 (<= ~a25~0 12) (<= ~a29~0 274) (<= 12 ~a25~0)) (and .cse1 (not (= ~a25~0 13))) (and .cse0 (<= ~a23~0 312)) (not (<= |old(~a23~0)| 312)) (and (or (<= 278 ~a29~0) (<= ~a29~0 245)) .cse1) (and (<= ~a25~0 10) .cse0 (<= ~a29~0 130)) (not (<= 312 |old(~a23~0)|)) (not (<= |old(~a29~0)| 130)) (and (<= 306 ~a23~0) .cse1))) [2020-10-26 22:44:07,799 INFO L274 CegarLoopResult]: For program point L1036-3(lines 1030 1046) no Hoare annotation was computed. [2020-10-26 22:44:07,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:44:07 BoogieIcfgContainer [2020-10-26 22:44:07,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 22:44:07,840 INFO L168 Benchmark]: Toolchain (without parser) took 165171.96 ms. Allocated memory was 151.0 MB in the beginning and 1.6 GB in the end (delta: 1.5 GB). Free memory was 123.8 MB in the beginning and 1.1 GB in the end (delta: -947.7 MB). Peak memory consumption was 985.9 MB. Max. memory is 8.0 GB. [2020-10-26 22:44:07,841 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 98.4 MB in the beginning and 98.3 MB in the end (delta: 68.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 22:44:07,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1127.36 ms. Allocated memory is still 151.0 MB. Free memory was 123.2 MB in the beginning and 109.1 MB in the end (delta: 14.1 MB). Peak memory consumption was 24.7 MB. Max. memory is 8.0 GB. [2020-10-26 22:44:07,842 INFO L168 Benchmark]: Boogie Preprocessor took 186.24 ms. Allocated memory is still 151.0 MB. Free memory was 109.1 MB in the beginning and 101.4 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-10-26 22:44:07,844 INFO L168 Benchmark]: RCFGBuilder took 2389.70 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 101.4 MB in the beginning and 120.6 MB in the end (delta: -19.2 MB). Peak memory consumption was 44.8 MB. Max. memory is 8.0 GB. [2020-10-26 22:44:07,845 INFO L168 Benchmark]: TraceAbstraction took 161453.06 ms. Allocated memory was 181.4 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 120.6 MB in the beginning and 1.1 GB in the end (delta: -950.9 MB). Peak memory consumption was 951.2 MB. Max. memory is 8.0 GB. [2020-10-26 22:44:07,853 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 98.4 MB in the beginning and 98.3 MB in the end (delta: 68.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1127.36 ms. Allocated memory is still 151.0 MB. Free memory was 123.2 MB in the beginning and 109.1 MB in the end (delta: 14.1 MB). Peak memory consumption was 24.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 186.24 ms. Allocated memory is still 151.0 MB. Free memory was 109.1 MB in the beginning and 101.4 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2389.70 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 101.4 MB in the beginning and 120.6 MB in the end (delta: -19.2 MB). Peak memory consumption was 44.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 161453.06 ms. Allocated memory was 181.4 MB in the beginning and 1.6 GB in the end (delta: 1.4 GB). Free memory was 120.6 MB in the beginning and 1.1 GB in the end (delta: -950.9 MB). Peak memory consumption was 951.2 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: 1036]: Loop Invariant Derived loop invariant: (((((((((!(\old(a4) == 1) || !(\old(a25) <= 10)) || (((a4 == 0 && a25 <= 12) && a29 <= 274) && 12 <= a25)) || (a4 == 1 && !(a25 == 13))) || (a4 == 0 && a23 <= 312)) || !(\old(a23) <= 312)) || ((278 <= a29 || a29 <= 245) && a4 == 1)) || ((a25 <= 10 && a4 == 0) && a29 <= 130)) || !(312 <= \old(a23))) || !(\old(a29) <= 130)) || (306 <= a23 && a4 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 296 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 144.8s, OverallIterations: 17, TraceHistogramMax: 4, AutomataDifference: 74.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 16.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 862 SDtfs, 13826 SDslu, 1675 SDs, 0 SdLazy, 26317 SolverSat, 5001 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 49.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 326 GetRequests, 132 SyntacticMatches, 2 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19912occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.8s AutomataMinimizationTime, 17 MinimizatonAttempts, 5432 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 1261 PreInvPairs, 1517 NumberOfFragments, 493 HoareAnnotationTreeSize, 1261 FomulaSimplifications, 348790 FormulaSimplificationTreeSizeReduction, 5.2s HoareSimplificationTime, 9 FomulaSimplificationsInter, 38457 FormulaSimplificationTreeSizeReductionInter, 11.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 62.0s InterpolantComputationTime, 4587 NumberOfCodeBlocks, 4587 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 4570 ConstructedInterpolants, 0 QuantifiedInterpolants, 6250923 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 3 PerfectInterpolantSequences, 2611/3524 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...