/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:00:27,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:00:27,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:00:27,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:00:27,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:00:27,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:00:27,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:00:27,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:00:27,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:00:27,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:00:27,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:00:27,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:00:27,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:00:27,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:00:27,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:00:27,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:00:27,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:00:27,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:00:27,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:00:27,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:00:27,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:00:27,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:00:27,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:00:27,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:00:27,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:00:27,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:00:27,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:00:27,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:00:27,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:00:27,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:00:27,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:00:27,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:00:27,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:00:27,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:00:27,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:00:27,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:00:27,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:00:27,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:00:27,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:00:27,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:00:27,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:00:27,923 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 [2020-10-28 12:00:27,977 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:00:27,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:00:27,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:00:27,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:00:27,983 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:00:27,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:00:27,983 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:00:27,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:00:27,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:00:27,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:00:27,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:00:27,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:00:27,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:00:27,986 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:00:27,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:00:27,986 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:00:27,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:00:27,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:00:27,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:00:27,987 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:00:27,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:00:27,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:00:27,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:00:27,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:00:27,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:00:27,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:00:27,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:00:27,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:00:27,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:00:27,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:00:28,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:00:28,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:00:28,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:00:28,454 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:00:28,455 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:00:28,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label38.c [2020-10-28 12:00:28,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8962d17b/1c3a8c05676e407ba03e2d989d657845/FLAG84a349d73 [2020-10-28 12:00:29,307 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:00:29,308 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label38.c [2020-10-28 12:00:29,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8962d17b/1c3a8c05676e407ba03e2d989d657845/FLAG84a349d73 [2020-10-28 12:00:29,566 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d8962d17b/1c3a8c05676e407ba03e2d989d657845 [2020-10-28 12:00:29,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:00:29,580 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:00:29,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:00:29,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:00:29,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:00:29,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:00:29" (1/1) ... [2020-10-28 12:00:29,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39de5959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:29, skipping insertion in model container [2020-10-28 12:00:29,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:00:29" (1/1) ... [2020-10-28 12:00:29,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:00:29,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:00:30,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:00:30,121 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:00:30,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:00:30,324 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:00:30,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30 WrapperNode [2020-10-28 12:00:30,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:00:30,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:00:30,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:00:30,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:00:30,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (1/1) ... [2020-10-28 12:00:30,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (1/1) ... [2020-10-28 12:00:30,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (1/1) ... [2020-10-28 12:00:30,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (1/1) ... [2020-10-28 12:00:30,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (1/1) ... [2020-10-28 12:00:30,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (1/1) ... [2020-10-28 12:00:30,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (1/1) ... [2020-10-28 12:00:30,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:00:30,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:00:30,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:00:30,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:00:30,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (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 [2020-10-28 12:00:30,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:00:30,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:00:30,545 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:00:30,545 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:00:30,545 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:00:30,545 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:00:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:00:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:00:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:00:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:00:30,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:00:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:00:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:00:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:00:30,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:00:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:00:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:00:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:00:30,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:00:32,054 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:00:32,055 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:00:32,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:00:32 BoogieIcfgContainer [2020-10-28 12:00:32,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:00:32,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:00:32,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:00:32,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:00:32,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:00:29" (1/3) ... [2020-10-28 12:00:32,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41764ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:00:32, skipping insertion in model container [2020-10-28 12:00:32,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:00:30" (2/3) ... [2020-10-28 12:00:32,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41764ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:00:32, skipping insertion in model container [2020-10-28 12:00:32,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:00:32" (3/3) ... [2020-10-28 12:00:32,067 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label38.c [2020-10-28 12:00:32,082 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:00:32,088 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:00:32,104 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:00:32,139 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:00:32,139 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:00:32,139 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:00:32,139 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:00:32,139 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:00:32,140 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:00:32,140 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:00:32,140 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:00:32,166 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states. [2020-10-28 12:00:32,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-28 12:00:32,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:32,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:00:32,176 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:32,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:32,184 INFO L82 PathProgramCache]: Analyzing trace with hash -997699398, now seen corresponding path program 1 times [2020-10-28 12:00:32,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:32,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834764007] [2020-10-28 12:00:32,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:32,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:32,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:32,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 12:00:32,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:33,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 613 [2020-10-28 12:00:33,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:33,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:33,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:00:33,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:00:33,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-28 12:00:33,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:00:33,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:33,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:33,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:33,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:33,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:33,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:00:33,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:33,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:33,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:33,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:33,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:00:33,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:33,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:00:33,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834764007] [2020-10-28 12:00:33,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:00:33,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 12:00:33,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623552667] [2020-10-28 12:00:33,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 12:00:33,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:33,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 12:00:33,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 12:00:33,227 INFO L87 Difference]: Start difference. First operand 219 states. Second operand 4 states. [2020-10-28 12:00:35,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:35,310 INFO L93 Difference]: Finished difference Result 586 states and 1012 transitions. [2020-10-28 12:00:35,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:00:35,312 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-10-28 12:00:35,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:35,345 INFO L225 Difference]: With dead ends: 586 [2020-10-28 12:00:35,345 INFO L226 Difference]: Without dead ends: 303 [2020-10-28 12:00:35,360 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 [2020-10-28 12:00:35,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-10-28 12:00:35,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 299. [2020-10-28 12:00:35,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-10-28 12:00:35,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 396 transitions. [2020-10-28 12:00:35,511 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 396 transitions. Word has length 39 [2020-10-28 12:00:35,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:35,513 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 396 transitions. [2020-10-28 12:00:35,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 12:00:35,513 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 396 transitions. [2020-10-28 12:00:35,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-28 12:00:35,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:35,522 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:00:35,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:00:35,523 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:35,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:35,523 INFO L82 PathProgramCache]: Analyzing trace with hash -2074473673, now seen corresponding path program 1 times [2020-10-28 12:00:35,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:35,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209396685] [2020-10-28 12:00:35,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:35,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:35,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:36,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:36,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 12:00:36,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:00:36,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1007 [2020-10-28 12:00:36,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:36,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:36,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:36,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 12:00:36,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 12:00:36,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:36,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:36,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:36,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:36,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:36,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:36,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:00:36,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:36,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:36,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:36,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:36,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:36,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:36,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:36,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:36,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:36,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 12:00:36,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:36,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-28 12:00:36,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:36,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:36,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:36,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:36,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 12:00:36,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:36,904 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:00:36,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209396685] [2020-10-28 12:00:36,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:00:36,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:00:36,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576924744] [2020-10-28 12:00:36,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:00:36,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:36,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:00:36,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:00:36,909 INFO L87 Difference]: Start difference. First operand 299 states and 396 transitions. Second operand 5 states. [2020-10-28 12:00:38,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:38,637 INFO L93 Difference]: Finished difference Result 741 states and 1023 transitions. [2020-10-28 12:00:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:00:38,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-10-28 12:00:38,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:38,648 INFO L225 Difference]: With dead ends: 741 [2020-10-28 12:00:38,648 INFO L226 Difference]: Without dead ends: 448 [2020-10-28 12:00:38,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:00:38,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-10-28 12:00:38,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 444. [2020-10-28 12:00:38,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-10-28 12:00:38,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 601 transitions. [2020-10-28 12:00:38,705 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 601 transitions. Word has length 109 [2020-10-28 12:00:38,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:38,706 INFO L481 AbstractCegarLoop]: Abstraction has 444 states and 601 transitions. [2020-10-28 12:00:38,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:00:38,707 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 601 transitions. [2020-10-28 12:00:38,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-28 12:00:38,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:38,710 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:00:38,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:00:38,711 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:38,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:38,711 INFO L82 PathProgramCache]: Analyzing trace with hash 563049873, now seen corresponding path program 1 times [2020-10-28 12:00:38,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:38,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42321065] [2020-10-28 12:00:38,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:38,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:38,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:39,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:40,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:40,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 12:00:40,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:00:40,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1715 [2020-10-28 12:00:40,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:40,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:40,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:00:40,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:00:40,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-28 12:00:40,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:40,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:40,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:40,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:40,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:40,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:40,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:00:40,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:40,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:40,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:40,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:40,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:00:40,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:40,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:40,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:40,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:40,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 12:00:40,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:40,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-10-28 12:00:40,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:40,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:40,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:40,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:00:40,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 12:00:40,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:41,096 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:00:41,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42321065] [2020-10-28 12:00:41,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:00:41,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:00:41,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571525009] [2020-10-28 12:00:41,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:00:41,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:41,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:00:41,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:00:41,099 INFO L87 Difference]: Start difference. First operand 444 states and 601 transitions. Second operand 7 states. [2020-10-28 12:00:43,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:43,083 INFO L93 Difference]: Finished difference Result 1047 states and 1405 transitions. [2020-10-28 12:00:43,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:00:43,085 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2020-10-28 12:00:43,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:43,090 INFO L225 Difference]: With dead ends: 1047 [2020-10-28 12:00:43,090 INFO L226 Difference]: Without dead ends: 609 [2020-10-28 12:00:43,092 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:00:43,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2020-10-28 12:00:43,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 597. [2020-10-28 12:00:43,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-28 12:00:43,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 775 transitions. [2020-10-28 12:00:43,125 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 775 transitions. Word has length 116 [2020-10-28 12:00:43,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:43,126 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 775 transitions. [2020-10-28 12:00:43,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:00:43,126 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 775 transitions. [2020-10-28 12:00:43,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-28 12:00:43,130 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:43,130 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:00:43,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:00:43,130 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:43,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:43,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1358037109, now seen corresponding path program 1 times [2020-10-28 12:00:43,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:43,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [169719771] [2020-10-28 12:00:43,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:43,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:43,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:44,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:44,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-28 12:00:44,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:00:44,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 858 [2020-10-28 12:00:44,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:44,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:44,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:00:44,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:00:44,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 12:00:44,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:44,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:44,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:44,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:44,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:44,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:44,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:00:44,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:44,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:44,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:44,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:44,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:00:44,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:44,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:44,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:44,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:44,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-28 12:00:44,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:44,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-28 12:00:44,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:44,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:44,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:44,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:00:44,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-28 12:00:44,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:44,434 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:00:44,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [169719771] [2020-10-28 12:00:44,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:00:44,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:00:44,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893159413] [2020-10-28 12:00:44,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:00:44,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:44,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:00:44,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:00:44,437 INFO L87 Difference]: Start difference. First operand 597 states and 775 transitions. Second operand 7 states. [2020-10-28 12:00:46,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:46,857 INFO L93 Difference]: Finished difference Result 1860 states and 2756 transitions. [2020-10-28 12:00:46,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:00:46,858 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 134 [2020-10-28 12:00:46,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:46,877 INFO L225 Difference]: With dead ends: 1860 [2020-10-28 12:00:46,877 INFO L226 Difference]: Without dead ends: 1269 [2020-10-28 12:00:46,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:00:46,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2020-10-28 12:00:46,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1195. [2020-10-28 12:00:46,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1195 states. [2020-10-28 12:00:46,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1517 transitions. [2020-10-28 12:00:46,981 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1517 transitions. Word has length 134 [2020-10-28 12:00:46,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:46,983 INFO L481 AbstractCegarLoop]: Abstraction has 1195 states and 1517 transitions. [2020-10-28 12:00:46,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:00:46,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1517 transitions. [2020-10-28 12:00:46,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-10-28 12:00:46,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:46,999 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-28 12:00:46,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:00:46,999 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:47,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:47,000 INFO L82 PathProgramCache]: Analyzing trace with hash 161803318, now seen corresponding path program 1 times [2020-10-28 12:00:47,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:47,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1467256184] [2020-10-28 12:00:47,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:47,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:47,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:47,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:48,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:49,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:49,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-10-28 12:00:49,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:00:49,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2142 [2020-10-28 12:00:49,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:49,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:49,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:49,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-28 12:00:49,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:00:49,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:49,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:49,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:49,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:49,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:49,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:49,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:00:49,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:49,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:49,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:49,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:49,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:49,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:49,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:49,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:49,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:49,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:00:49,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:49,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 12:00:49,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:49,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:00:49,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:49,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-28 12:00:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:49,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:49,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:49,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 12:00:49,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:49,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-28 12:00:49,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:49,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:49,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:49,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:00:49,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-28 12:00:49,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 12:00:50,024 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 138 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:00:50,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1467256184] [2020-10-28 12:00:50,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:00:50,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:00:50,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005866755] [2020-10-28 12:00:50,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:00:50,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:50,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:00:50,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:00:50,029 INFO L87 Difference]: Start difference. First operand 1195 states and 1517 transitions. Second operand 7 states. [2020-10-28 12:00:52,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:00:52,280 INFO L93 Difference]: Finished difference Result 2700 states and 3587 transitions. [2020-10-28 12:00:52,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:00:52,280 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 243 [2020-10-28 12:00:52,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:00:52,289 INFO L225 Difference]: With dead ends: 2700 [2020-10-28 12:00:52,289 INFO L226 Difference]: Without dead ends: 1211 [2020-10-28 12:00:52,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:00:52,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2020-10-28 12:00:52,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1191. [2020-10-28 12:00:52,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1191 states. [2020-10-28 12:00:52,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 1463 transitions. [2020-10-28 12:00:52,339 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 1463 transitions. Word has length 243 [2020-10-28 12:00:52,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:00:52,339 INFO L481 AbstractCegarLoop]: Abstraction has 1191 states and 1463 transitions. [2020-10-28 12:00:52,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:00:52,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 1463 transitions. [2020-10-28 12:00:52,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2020-10-28 12:00:52,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:00:52,346 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:00:52,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:00:52,347 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:00:52,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:00:52,347 INFO L82 PathProgramCache]: Analyzing trace with hash 369894123, now seen corresponding path program 1 times [2020-10-28 12:00:52,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:00:52,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [208110835] [2020-10-28 12:00:52,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:00:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:52,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:52,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:52,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:56,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:57,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:57,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 321 [2020-10-28 12:00:57,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:00:57,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-28 12:00:57,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:57,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:57,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:57,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-10-28 12:00:57,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-28 12:00:57,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:57,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:00:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:57,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:57,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:57,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:00:57,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:57,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 12:00:57,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:57,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:57,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:57,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:57,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:57,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:57,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:00:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:57,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:57,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:57,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 12:00:57,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:57,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:00:57,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:57,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:57,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:00:57,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:57,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:00:57,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:57,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 12:00:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:57,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:57,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:57,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-28 12:00:57,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:57,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-28 12:00:57,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:57,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:57,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:00:57,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:00:57,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 12:00:57,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:00:57,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-28 12:00:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:00:57,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:00:58,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:00:58,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:00:58,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:00:58,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-28 12:00:58,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:00:58,062 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:00:58,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:00:58,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:00:58,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 12:00:58,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:00:58,399 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 239 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-28 12:00:58,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [208110835] [2020-10-28 12:00:58,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:00:58,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:00:58,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094988670] [2020-10-28 12:00:58,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:00:58,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:00:58,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:00:58,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:00:58,402 INFO L87 Difference]: Start difference. First operand 1191 states and 1463 transitions. Second operand 7 states. [2020-10-28 12:01:00,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:00,558 INFO L93 Difference]: Finished difference Result 2404 states and 3022 transitions. [2020-10-28 12:01:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:01:00,559 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 305 [2020-10-28 12:01:00,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:00,568 INFO L225 Difference]: With dead ends: 2404 [2020-10-28 12:01:00,568 INFO L226 Difference]: Without dead ends: 1362 [2020-10-28 12:01:00,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:01:00,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2020-10-28 12:01:00,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1346. [2020-10-28 12:01:00,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1346 states. [2020-10-28 12:01:00,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1647 transitions. [2020-10-28 12:01:00,618 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1647 transitions. Word has length 305 [2020-10-28 12:01:00,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:00,618 INFO L481 AbstractCegarLoop]: Abstraction has 1346 states and 1647 transitions. [2020-10-28 12:01:00,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:00,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1647 transitions. [2020-10-28 12:01:00,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-28 12:01:00,626 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:00,626 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:00,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:01:00,626 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:00,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:00,627 INFO L82 PathProgramCache]: Analyzing trace with hash 186155251, now seen corresponding path program 1 times [2020-10-28 12:01:00,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:00,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420505336] [2020-10-28 12:01:00,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:00,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:00,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:01,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:01,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:02,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:05,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:05,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-28 12:01:05,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:01:05,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4353 [2020-10-28 12:01:05,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:05,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:01:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-28 12:01:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-28 12:01:05,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:05,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:05,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:05,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:05,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:05,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:05,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:01:05,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:05,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:05,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:05,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:05,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:05,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:05,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:05,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:05,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:05,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-28 12:01:05,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:05,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-28 12:01:05,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:05,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:05,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:05,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:05,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 12:01:05,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:05,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-28 12:01:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:05,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:05,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:05,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:05,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 12:01:05,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:01:05,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-28 12:01:05,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:05,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:05,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:05,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:05,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 12:01:05,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:01:05,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-28 12:01:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:05,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:05,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:05,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 12:01:05,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:05,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-28 12:01:05,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:05,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:05,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:05,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:05,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-28 12:01:05,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:06,009 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 292 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-28 12:01:06,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1420505336] [2020-10-28 12:01:06,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:06,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:01:06,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411231730] [2020-10-28 12:01:06,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:01:06,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:06,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:01:06,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:01:06,013 INFO L87 Difference]: Start difference. First operand 1346 states and 1647 transitions. Second operand 8 states. [2020-10-28 12:01:08,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:08,129 INFO L93 Difference]: Finished difference Result 2855 states and 3581 transitions. [2020-10-28 12:01:08,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:01:08,130 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 306 [2020-10-28 12:01:08,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:08,139 INFO L225 Difference]: With dead ends: 2855 [2020-10-28 12:01:08,140 INFO L226 Difference]: Without dead ends: 1658 [2020-10-28 12:01:08,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:01:08,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2020-10-28 12:01:08,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1501. [2020-10-28 12:01:08,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1501 states. [2020-10-28 12:01:08,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 1827 transitions. [2020-10-28 12:01:08,198 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 1827 transitions. Word has length 306 [2020-10-28 12:01:08,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:08,199 INFO L481 AbstractCegarLoop]: Abstraction has 1501 states and 1827 transitions. [2020-10-28 12:01:08,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:01:08,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 1827 transitions. [2020-10-28 12:01:08,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2020-10-28 12:01:08,207 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:08,207 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 12:01:08,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:01:08,208 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:08,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:08,208 INFO L82 PathProgramCache]: Analyzing trace with hash 20556749, now seen corresponding path program 1 times [2020-10-28 12:01:08,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:08,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [362606700] [2020-10-28 12:01:08,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:08,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:08,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:08,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:09,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:09,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:11,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:11,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 367 [2020-10-28 12:01:11,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:01:11,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3433 [2020-10-28 12:01:11,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:11,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:11,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:01:11,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 12:01:11,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-28 12:01:11,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:11,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:11,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:11,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:11,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:11,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:11,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:11,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:01:11,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:11,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:11,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:11,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:11,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:11,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:11,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:11,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:12,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:12,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 12:01:12,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:12,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 12:01:12,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:12,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:12,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:12,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:12,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 12:01:12,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:12,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 12:01:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:12,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:12,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:12,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 12:01:12,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:12,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-10-28 12:01:12,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:12,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:12,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:12,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:12,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-28 12:01:12,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:12,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-10-28 12:01:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:12,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:12,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:12,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 12:01:12,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:12,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-28 12:01:12,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:12,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:12,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:12,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:12,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-10-28 12:01:12,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:12,626 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 274 proven. 6 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-28 12:01:12,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [362606700] [2020-10-28 12:01:12,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:12,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:12,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056837314] [2020-10-28 12:01:12,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:12,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:12,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:12,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:12,629 INFO L87 Difference]: Start difference. First operand 1501 states and 1827 transitions. Second operand 7 states. [2020-10-28 12:01:14,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:14,986 INFO L93 Difference]: Finished difference Result 3465 states and 4329 transitions. [2020-10-28 12:01:14,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:01:14,987 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 351 [2020-10-28 12:01:14,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:15,001 INFO L225 Difference]: With dead ends: 3465 [2020-10-28 12:01:15,001 INFO L226 Difference]: Without dead ends: 2113 [2020-10-28 12:01:15,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:01:15,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2020-10-28 12:01:15,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 2103. [2020-10-28 12:01:15,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2103 states. [2020-10-28 12:01:15,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2103 states to 2103 states and 2540 transitions. [2020-10-28 12:01:15,076 INFO L78 Accepts]: Start accepts. Automaton has 2103 states and 2540 transitions. Word has length 351 [2020-10-28 12:01:15,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:15,077 INFO L481 AbstractCegarLoop]: Abstraction has 2103 states and 2540 transitions. [2020-10-28 12:01:15,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:15,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2103 states and 2540 transitions. [2020-10-28 12:01:15,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-10-28 12:01:15,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:15,087 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:15,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:01:15,088 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:15,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:15,088 INFO L82 PathProgramCache]: Analyzing trace with hash -800874819, now seen corresponding path program 1 times [2020-10-28 12:01:15,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:15,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502706803] [2020-10-28 12:01:15,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:15,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:15,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:16,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:19,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:19,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 376 [2020-10-28 12:01:19,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:01:19,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3918 [2020-10-28 12:01:19,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:19,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:19,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:19,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-28 12:01:19,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-28 12:01:19,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:19,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:19,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:19,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:19,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:19,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:19,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:01:19,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:19,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:19,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:19,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:19,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:19,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:19,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 12:01:19,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:19,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-28 12:01:19,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:19,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:19,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:19,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:19,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-28 12:01:19,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:19,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 12:01:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:19,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:19,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:19,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-28 12:01:19,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:19,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-28 12:01:19,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:19,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:01:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-28 12:01:19,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:19,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-28 12:01:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:19,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:19,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:19,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 12:01:19,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:19,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-28 12:01:19,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:19,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:19,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:19,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 117 [2020-10-28 12:01:19,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:19,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:19,920 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 181 proven. 86 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-28 12:01:19,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502706803] [2020-10-28 12:01:19,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:19,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:01:19,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258798684] [2020-10-28 12:01:19,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:01:19,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:19,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:01:19,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:01:19,930 INFO L87 Difference]: Start difference. First operand 2103 states and 2540 transitions. Second operand 7 states. [2020-10-28 12:01:21,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:21,891 INFO L93 Difference]: Finished difference Result 4075 states and 4971 transitions. [2020-10-28 12:01:21,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:01:21,892 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 360 [2020-10-28 12:01:21,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:21,904 INFO L225 Difference]: With dead ends: 4075 [2020-10-28 12:01:21,904 INFO L226 Difference]: Without dead ends: 2121 [2020-10-28 12:01:21,910 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:01:21,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2121 states. [2020-10-28 12:01:21,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 2103. [2020-10-28 12:01:21,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2103 states. [2020-10-28 12:01:21,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2103 states to 2103 states and 2517 transitions. [2020-10-28 12:01:21,977 INFO L78 Accepts]: Start accepts. Automaton has 2103 states and 2517 transitions. Word has length 360 [2020-10-28 12:01:21,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:21,977 INFO L481 AbstractCegarLoop]: Abstraction has 2103 states and 2517 transitions. [2020-10-28 12:01:21,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:01:21,978 INFO L276 IsEmpty]: Start isEmpty. Operand 2103 states and 2517 transitions. [2020-10-28 12:01:21,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2020-10-28 12:01:21,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:01:21,988 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:01:21,988 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:01:21,989 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:01:21,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:01:21,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1257519603, now seen corresponding path program 1 times [2020-10-28 12:01:21,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:01:21,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1232021729] [2020-10-28 12:01:21,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:01:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:22,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:22,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:22,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:22,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 380 [2020-10-28 12:01:22,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:01:22,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 819 [2020-10-28 12:01:22,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:22,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:22,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:01:22,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 339 [2020-10-28 12:01:22,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 12:01:22,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:23,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:01:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:23,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:23,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:23,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:01:23,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:23,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:01:23,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:23,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:23,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:23,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:23,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:23,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:23,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:01:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:23,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:23,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:23,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 12:01:23,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:23,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:01:23,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:23,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:23,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:23,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:23,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:23,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:23,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-28 12:01:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:23,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:23,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:23,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-28 12:01:23,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:23,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:01:23,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:23,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:23,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:01:23,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:23,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:01:23,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:23,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2020-10-28 12:01:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:01:23,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:01:23,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:01:23,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 12:01:23,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:01:23,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-28 12:01:23,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:01:23,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:01:23,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:01:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:01:23,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 120 [2020-10-28 12:01:23,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:01:23,428 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-10-28 12:01:23,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1232021729] [2020-10-28 12:01:23,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:01:23,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:01:23,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086287403] [2020-10-28 12:01:23,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:01:23,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:01:23,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:01:23,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:01:23,431 INFO L87 Difference]: Start difference. First operand 2103 states and 2517 transitions. Second operand 5 states. [2020-10-28 12:01:25,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:01:25,073 INFO L93 Difference]: Finished difference Result 4201 states and 5039 transitions. [2020-10-28 12:01:25,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:01:25,074 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 364 [2020-10-28 12:01:25,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:01:25,076 INFO L225 Difference]: With dead ends: 4201 [2020-10-28 12:01:25,076 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 12:01:25,085 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:01:25,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 12:01:25,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 12:01:25,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 12:01:25,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 12:01:25,086 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 364 [2020-10-28 12:01:25,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:01:25,086 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 12:01:25,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:01:25,087 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 12:01:25,087 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 12:01:25,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:01:25,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 12:01:25,285 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 90 [2020-10-28 12:01:25,654 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 90 [2020-10-28 12:01:26,199 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 29 [2020-10-28 12:01:26,406 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 12:01:26,406 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 12:01:26,407 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 12:01:26,407 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 12:01:26,407 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:01:26,407 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~a4~0 |old(~a4~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a10~0 |old(~a10~0)|)) [2020-10-28 12:01:26,407 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:01:26,408 INFO L274 CegarLoopResult]: For program point L531(lines 531 574) no Hoare annotation was computed. [2020-10-28 12:01:26,408 INFO L274 CegarLoopResult]: For program point L432(lines 432 574) no Hoare annotation was computed. [2020-10-28 12:01:26,408 INFO L274 CegarLoopResult]: For program point L267(lines 267 574) no Hoare annotation was computed. [2020-10-28 12:01:26,408 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 12:01:26,408 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-28 12:01:26,408 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 12:01:26,409 INFO L270 CegarLoopResult]: At program point L102(line 102) the Hoare annotation is: (and (not (= 6 |old(~a19~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a10~0)| 2)) (not (= 8 |old(~a19~0)|))) [2020-10-28 12:01:26,409 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 12:01:26,409 INFO L274 CegarLoopResult]: For program point L102-1(line 102) no Hoare annotation was computed. [2020-10-28 12:01:26,409 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 12:01:26,409 INFO L274 CegarLoopResult]: For program point L565(lines 565 574) no Hoare annotation was computed. [2020-10-28 12:01:26,409 INFO L274 CegarLoopResult]: For program point L400(lines 400 574) no Hoare annotation was computed. [2020-10-28 12:01:26,409 INFO L274 CegarLoopResult]: For program point L367(lines 367 574) no Hoare annotation was computed. [2020-10-28 12:01:26,409 INFO L274 CegarLoopResult]: For program point L467(lines 467 574) no Hoare annotation was computed. [2020-10-28 12:01:26,410 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,410 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,410 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,410 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,410 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,410 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,410 INFO L274 CegarLoopResult]: For program point L501(lines 501 574) no Hoare annotation was computed. [2020-10-28 12:01:26,410 INFO L274 CegarLoopResult]: For program point L303(lines 303 574) no Hoare annotation was computed. [2020-10-28 12:01:26,410 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-28 12:01:26,410 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 12:01:26,411 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 12:01:26,411 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-28 12:01:26,411 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 12:01:26,411 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 12:01:26,411 INFO L274 CegarLoopResult]: For program point L337(lines 337 574) no Hoare annotation was computed. [2020-10-28 12:01:26,411 INFO L274 CegarLoopResult]: For program point L238(lines 238 574) no Hoare annotation was computed. [2020-10-28 12:01:26,411 INFO L274 CegarLoopResult]: For program point L536(lines 536 574) no Hoare annotation was computed. [2020-10-28 12:01:26,411 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,411 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,412 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,412 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,412 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,412 INFO L274 CegarLoopResult]: For program point L438(lines 438 574) no Hoare annotation was computed. [2020-10-28 12:01:26,412 INFO L274 CegarLoopResult]: For program point L405(lines 405 574) no Hoare annotation was computed. [2020-10-28 12:01:26,412 INFO L274 CegarLoopResult]: For program point L372(lines 372 574) no Hoare annotation was computed. [2020-10-28 12:01:26,412 INFO L274 CegarLoopResult]: For program point L273(lines 273 574) no Hoare annotation was computed. [2020-10-28 12:01:26,412 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-28 12:01:26,412 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 12:01:26,413 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-28 12:01:26,413 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 12:01:26,413 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 12:01:26,413 INFO L274 CegarLoopResult]: For program point L571(lines 571 574) no Hoare annotation was computed. [2020-10-28 12:01:26,413 INFO L274 CegarLoopResult]: For program point L241(lines 241 574) no Hoare annotation was computed. [2020-10-28 12:01:26,413 INFO L274 CegarLoopResult]: For program point L506(lines 506 574) no Hoare annotation was computed. [2020-10-28 12:01:26,413 INFO L274 CegarLoopResult]: For program point L473(lines 473 574) no Hoare annotation was computed. [2020-10-28 12:01:26,413 INFO L274 CegarLoopResult]: For program point L308(lines 308 574) no Hoare annotation was computed. [2020-10-28 12:01:26,413 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,414 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,414 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,414 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,414 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,414 INFO L274 CegarLoopResult]: For program point L342(lines 342 574) no Hoare annotation was computed. [2020-10-28 12:01:26,414 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 12:01:26,414 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 12:01:26,414 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 12:01:26,414 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-28 12:01:26,414 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 12:01:26,415 INFO L274 CegarLoopResult]: For program point L542(lines 542 574) no Hoare annotation was computed. [2020-10-28 12:01:26,415 INFO L274 CegarLoopResult]: For program point L410(lines 410 574) no Hoare annotation was computed. [2020-10-28 12:01:26,415 INFO L274 CegarLoopResult]: For program point L377(lines 377 574) no Hoare annotation was computed. [2020-10-28 12:01:26,415 INFO L274 CegarLoopResult]: For program point L212(lines 212 574) no Hoare annotation was computed. [2020-10-28 12:01:26,415 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,415 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,415 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,415 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,415 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,415 INFO L274 CegarLoopResult]: For program point L444(lines 444 574) no Hoare annotation was computed. [2020-10-28 12:01:26,415 INFO L274 CegarLoopResult]: For program point L279(lines 279 574) no Hoare annotation was computed. [2020-10-28 12:01:26,416 INFO L274 CegarLoopResult]: For program point L246(lines 246 574) no Hoare annotation was computed. [2020-10-28 12:01:26,416 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-28 12:01:26,416 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 12:01:26,416 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-28 12:01:26,416 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 12:01:26,416 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 12:01:26,416 INFO L274 CegarLoopResult]: For program point L511(lines 511 574) no Hoare annotation was computed. [2020-10-28 12:01:26,416 INFO L274 CegarLoopResult]: For program point L478(lines 478 574) no Hoare annotation was computed. [2020-10-28 12:01:26,416 INFO L274 CegarLoopResult]: For program point L380(lines 380 574) no Hoare annotation was computed. [2020-10-28 12:01:26,416 INFO L274 CegarLoopResult]: For program point L347(lines 347 574) no Hoare annotation was computed. [2020-10-28 12:01:26,417 INFO L274 CegarLoopResult]: For program point L314(lines 314 574) no Hoare annotation was computed. [2020-10-28 12:01:26,417 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,417 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,417 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,417 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,417 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,417 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-28 12:01:26,417 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 12:01:26,417 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 12:01:26,417 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 12:01:26,418 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 12:01:26,418 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,418 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,418 INFO L274 CegarLoopResult]: For program point L547(lines 547 574) no Hoare annotation was computed. [2020-10-28 12:01:26,418 INFO L274 CegarLoopResult]: For program point L217(lines 217 574) no Hoare annotation was computed. [2020-10-28 12:01:26,418 INFO L274 CegarLoopResult]: For program point L416(lines 416 574) no Hoare annotation was computed. [2020-10-28 12:01:26,418 INFO L274 CegarLoopResult]: For program point L251(lines 251 574) no Hoare annotation was computed. [2020-10-28 12:01:26,418 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,418 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,418 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,419 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,419 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,419 INFO L274 CegarLoopResult]: For program point L516(lines 516 574) no Hoare annotation was computed. [2020-10-28 12:01:26,419 INFO L274 CegarLoopResult]: For program point L483(lines 483 574) no Hoare annotation was computed. [2020-10-28 12:01:26,419 INFO L274 CegarLoopResult]: For program point L450(lines 450 574) no Hoare annotation was computed. [2020-10-28 12:01:26,419 INFO L274 CegarLoopResult]: For program point L285(lines 285 574) no Hoare annotation was computed. [2020-10-28 12:01:26,419 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-28 12:01:26,420 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-28 12:01:26,420 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-28 12:01:26,420 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 12:01:26,420 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 12:01:26,420 INFO L274 CegarLoopResult]: For program point L550(lines 550 574) no Hoare annotation was computed. [2020-10-28 12:01:26,420 INFO L274 CegarLoopResult]: For program point L385(lines 385 574) no Hoare annotation was computed. [2020-10-28 12:01:26,420 INFO L274 CegarLoopResult]: For program point L319(lines 319 574) no Hoare annotation was computed. [2020-10-28 12:01:26,420 INFO L274 CegarLoopResult]: For program point L353(lines 353 574) no Hoare annotation was computed. [2020-10-28 12:01:26,420 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,420 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,421 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,421 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,421 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 12:01:26,421 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,421 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,421 INFO L274 CegarLoopResult]: For program point L519(lines 519 574) no Hoare annotation was computed. [2020-10-28 12:01:26,421 INFO L274 CegarLoopResult]: For program point L288(lines 288 574) no Hoare annotation was computed. [2020-10-28 12:01:26,421 INFO L274 CegarLoopResult]: For program point L222(lines 222 574) no Hoare annotation was computed. [2020-10-28 12:01:26,421 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 12:01:26,421 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 12:01:26,421 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 12:01:26,422 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 12:01:26,422 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 12:01:26,422 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 12:01:26,422 INFO L274 CegarLoopResult]: For program point L421(lines 421 574) no Hoare annotation was computed. [2020-10-28 12:01:26,422 INFO L274 CegarLoopResult]: For program point L322(lines 322 574) no Hoare annotation was computed. [2020-10-28 12:01:26,422 INFO L274 CegarLoopResult]: For program point L256(lines 256 574) no Hoare annotation was computed. [2020-10-28 12:01:26,422 INFO L274 CegarLoopResult]: For program point L356(lines 356 574) no Hoare annotation was computed. [2020-10-28 12:01:26,422 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,422 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,422 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,423 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,423 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,423 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,423 INFO L274 CegarLoopResult]: For program point L489(lines 489 574) no Hoare annotation was computed. [2020-10-28 12:01:26,423 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 576) the Hoare annotation is: (let ((.cse0 (= ~a1~0 |old(~a1~0)|)) (.cse1 (= ~a10~0 |old(~a10~0)|))) (let ((.cse2 (and .cse0 (= ~a19~0 |old(~a19~0)|) .cse1))) (and (or (not (= 6 |old(~a19~0)|)) (and .cse0 (= ~a19~0 6) .cse1)) (or .cse2 (not (<= |old(~a10~0)| 2))) (or .cse2 (not (= 8 |old(~a19~0)|))) (or (not (= 9 |old(~a19~0)|)) .cse2)))) [2020-10-28 12:01:26,423 INFO L274 CegarLoopResult]: For program point L456(lines 456 574) no Hoare annotation was computed. [2020-10-28 12:01:26,423 INFO L274 CegarLoopResult]: For program point L390(lines 390 574) no Hoare annotation was computed. [2020-10-28 12:01:26,423 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-28 12:01:26,424 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 12:01:26,424 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 12:01:26,424 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 12:01:26,424 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 12:01:26,424 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 12:01:26,424 INFO L274 CegarLoopResult]: For program point L556(lines 556 574) no Hoare annotation was computed. [2020-10-28 12:01:26,424 INFO L274 CegarLoopResult]: For program point L325(lines 325 574) no Hoare annotation was computed. [2020-10-28 12:01:26,424 INFO L274 CegarLoopResult]: For program point L359(lines 359 574) no Hoare annotation was computed. [2020-10-28 12:01:26,424 INFO L274 CegarLoopResult]: For program point L293(lines 293 574) no Hoare annotation was computed. [2020-10-28 12:01:26,424 INFO L274 CegarLoopResult]: For program point L227(lines 227 574) no Hoare annotation was computed. [2020-10-28 12:01:26,425 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,425 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,425 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,425 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,425 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,425 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,425 INFO L274 CegarLoopResult]: For program point L525(lines 525 574) no Hoare annotation was computed. [2020-10-28 12:01:26,425 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 12:01:26,425 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 12:01:26,426 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-28 12:01:26,426 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 12:01:26,426 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 12:01:26,426 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 12:01:26,426 INFO L274 CegarLoopResult]: For program point L559(lines 559 574) no Hoare annotation was computed. [2020-10-28 12:01:26,426 INFO L274 CegarLoopResult]: For program point L427(lines 427 574) no Hoare annotation was computed. [2020-10-28 12:01:26,426 INFO L274 CegarLoopResult]: For program point L328(lines 328 574) no Hoare annotation was computed. [2020-10-28 12:01:26,426 INFO L274 CegarLoopResult]: For program point L262(lines 262 574) no Hoare annotation was computed. [2020-10-28 12:01:26,426 INFO L274 CegarLoopResult]: For program point L395(lines 395 574) no Hoare annotation was computed. [2020-10-28 12:01:26,426 INFO L274 CegarLoopResult]: For program point L362(lines 362 574) no Hoare annotation was computed. [2020-10-28 12:01:26,426 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,427 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,427 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,427 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,427 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,427 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,427 INFO L274 CegarLoopResult]: For program point L528(lines 528 574) no Hoare annotation was computed. [2020-10-28 12:01:26,427 INFO L274 CegarLoopResult]: For program point L495(lines 495 574) no Hoare annotation was computed. [2020-10-28 12:01:26,427 INFO L274 CegarLoopResult]: For program point L462(lines 462 574) no Hoare annotation was computed. [2020-10-28 12:01:26,427 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-28 12:01:26,427 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 12:01:26,427 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 12:01:26,428 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 12:01:26,428 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 12:01:26,428 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 12:01:26,428 INFO L274 CegarLoopResult]: For program point L331(lines 331 574) no Hoare annotation was computed. [2020-10-28 12:01:26,428 INFO L274 CegarLoopResult]: For program point L298(lines 298 574) no Hoare annotation was computed. [2020-10-28 12:01:26,428 INFO L274 CegarLoopResult]: For program point L233(lines 233 574) no Hoare annotation was computed. [2020-10-28 12:01:26,428 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,428 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,428 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,428 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,428 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,429 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 576) no Hoare annotation was computed. [2020-10-28 12:01:26,429 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:01:26,429 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a10~0 0) (= ~a19~0 9) (<= ~a1~0 23)) [2020-10-28 12:01:26,429 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 12:01:26,429 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:01:26,429 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 578 594) the Hoare annotation is: (or (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 0 |old(~a10~0)|))) [2020-10-28 12:01:26,429 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 578 594) no Hoare annotation was computed. [2020-10-28 12:01:26,429 INFO L270 CegarLoopResult]: At program point L592(line 592) the Hoare annotation is: (or (= ~a19~0 8) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (<= ~a10~0 2) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (= ~a19~0 6)) [2020-10-28 12:01:26,429 INFO L274 CegarLoopResult]: For program point L592-1(line 592) no Hoare annotation was computed. [2020-10-28 12:01:26,430 INFO L274 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-10-28 12:01:26,430 INFO L270 CegarLoopResult]: At program point L584-2(lines 584 593) the Hoare annotation is: (or (= ~a19~0 8) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (<= ~a10~0 2) (= ~a19~0 9) (not (= 0 |old(~a10~0)|)) (= ~a19~0 6)) [2020-10-28 12:01:26,430 INFO L274 CegarLoopResult]: For program point L584-3(lines 578 594) no Hoare annotation was computed. [2020-10-28 12:01:26,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 12:01:26 BoogieIcfgContainer [2020-10-28 12:01:26,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 12:01:26,453 INFO L168 Benchmark]: Toolchain (without parser) took 56878.67 ms. Allocated memory was 125.8 MB in the beginning and 941.6 MB in the end (delta: 815.8 MB). Free memory was 99.7 MB in the beginning and 563.5 MB in the end (delta: -463.8 MB). Peak memory consumption was 352.7 MB. Max. memory is 8.0 GB. [2020-10-28 12:01:26,454 INFO L168 Benchmark]: CDTParser took 4.51 ms. Allocated memory is still 125.8 MB. Free memory is still 88.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 12:01:26,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 739.65 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 99.0 MB in the beginning and 130.5 MB in the end (delta: -31.4 MB). Peak memory consumption was 31.6 MB. Max. memory is 8.0 GB. [2020-10-28 12:01:26,455 INFO L168 Benchmark]: Boogie Preprocessor took 119.57 ms. Allocated memory is still 151.0 MB. Free memory was 130.5 MB in the beginning and 126.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-28 12:01:26,456 INFO L168 Benchmark]: RCFGBuilder took 1611.15 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 69.2 MB in the end (delta: 56.8 MB). Peak memory consumption was 59.8 MB. Max. memory is 8.0 GB. [2020-10-28 12:01:26,457 INFO L168 Benchmark]: TraceAbstraction took 54392.27 ms. Allocated memory was 151.0 MB in the beginning and 941.6 MB in the end (delta: 790.6 MB). Free memory was 69.2 MB in the beginning and 563.5 MB in the end (delta: -494.3 MB). Peak memory consumption was 296.9 MB. Max. memory is 8.0 GB. [2020-10-28 12:01:26,460 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.51 ms. Allocated memory is still 125.8 MB. Free memory is still 88.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 739.65 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 99.0 MB in the beginning and 130.5 MB in the end (delta: -31.4 MB). Peak memory consumption was 31.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 119.57 ms. Allocated memory is still 151.0 MB. Free memory was 130.5 MB in the beginning and 126.0 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1611.15 ms. Allocated memory is still 151.0 MB. Free memory was 126.0 MB in the beginning and 69.2 MB in the end (delta: 56.8 MB). Peak memory consumption was 59.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 54392.27 ms. Allocated memory was 151.0 MB in the beginning and 941.6 MB in the end (delta: 790.6 MB). Free memory was 69.2 MB in the beginning and 563.5 MB in the end (delta: -494.3 MB). Peak memory consumption was 296.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 584]: Loop Invariant Derived loop invariant: (((((a19 == 8 || !(9 == \old(a19))) || !(\old(a1) <= 23)) || a10 <= 2) || a19 == 9) || !(0 == \old(a10))) || a19 == 6 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 219 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 52.9s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 20.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 285 SDtfs, 3590 SDslu, 337 SDs, 0 SdLazy, 9057 SolverSat, 1320 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2103occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 315 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 186 PreInvPairs, 222 NumberOfFragments, 224 HoareAnnotationTreeSize, 186 FomulaSimplifications, 27508 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 1924 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 29.4s InterpolantComputationTime, 2327 NumberOfCodeBlocks, 2327 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2317 ConstructedInterpolants, 0 QuantifiedInterpolants, 1935944 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 1855/1961 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...