/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=DEEPEST --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/Problem14_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 18:18:02,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 18:18:02,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 18:18:03,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 18:18:03,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 18:18:03,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 18:18:03,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 18:18:03,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 18:18:03,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 18:18:03,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 18:18:03,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 18:18:03,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 18:18:03,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 18:18:03,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 18:18:03,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 18:18:03,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 18:18:03,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 18:18:03,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 18:18:03,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 18:18:03,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 18:18:03,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 18:18:03,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 18:18:03,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 18:18:03,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 18:18:03,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 18:18:03,092 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 18:18:03,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 18:18:03,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 18:18:03,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 18:18:03,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 18:18:03,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 18:18:03,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 18:18:03,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 18:18:03,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 18:18:03,106 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 18:18:03,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 18:18:03,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 18:18:03,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 18:18:03,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 18:18:03,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 18:18:03,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 18:18:03,119 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 [2020-10-27 18:18:03,174 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 18:18:03,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 18:18:03,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 18:18:03,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 18:18:03,179 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 18:18:03,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 18:18:03,180 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 18:18:03,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 18:18:03,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 18:18:03,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 18:18:03,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 18:18:03,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 18:18:03,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 18:18:03,183 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 18:18:03,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 18:18:03,183 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 18:18:03,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 18:18:03,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 18:18:03,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 18:18:03,184 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 18:18:03,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 18:18:03,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 18:18:03,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 18:18:03,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 18:18:03,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 18:18:03,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 18:18:03,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 18:18:03,186 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 18:18:03,186 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 18:18:03,186 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 18:18:03,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 18:18:03,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 18:18:03,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 18:18:03,708 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 18:18:03,709 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 18:18:03,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label51.c [2020-10-27 18:18:03,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b304ef8a4/53ca110726324439875b6e2b4aaa2b16/FLAG756298d51 [2020-10-27 18:18:04,628 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 18:18:04,629 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label51.c [2020-10-27 18:18:04,647 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b304ef8a4/53ca110726324439875b6e2b4aaa2b16/FLAG756298d51 [2020-10-27 18:18:04,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b304ef8a4/53ca110726324439875b6e2b4aaa2b16 [2020-10-27 18:18:04,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 18:18:04,845 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 18:18:04,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 18:18:04,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 18:18:04,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 18:18:04,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:18:04" (1/1) ... [2020-10-27 18:18:04,857 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@351f8c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:04, skipping insertion in model container [2020-10-27 18:18:04,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:18:04" (1/1) ... [2020-10-27 18:18:04,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 18:18:04,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 18:18:05,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 18:18:05,390 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 18:18:05,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 18:18:05,634 INFO L208 MainTranslator]: Completed translation [2020-10-27 18:18:05,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:05 WrapperNode [2020-10-27 18:18:05,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 18:18:05,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 18:18:05,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 18:18:05,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 18:18:05,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:05" (1/1) ... [2020-10-27 18:18:05,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:05" (1/1) ... [2020-10-27 18:18:05,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:05" (1/1) ... [2020-10-27 18:18:05,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:05" (1/1) ... [2020-10-27 18:18:05,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:05" (1/1) ... [2020-10-27 18:18:05,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:05" (1/1) ... [2020-10-27 18:18:05,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:05" (1/1) ... [2020-10-27 18:18:05,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 18:18:05,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 18:18:05,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 18:18:05,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 18:18:05,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:05" (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 [2020-10-27 18:18:05,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 18:18:05,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 18:18:05,889 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 18:18:05,889 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 18:18:05,890 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 18:18:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 18:18:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 18:18:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 18:18:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 18:18:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 18:18:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 18:18:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 18:18:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 18:18:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 18:18:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 18:18:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 18:18:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 18:18:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 18:18:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 18:18:07,385 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 18:18:07,385 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 18:18:07,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:18:07 BoogieIcfgContainer [2020-10-27 18:18:07,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 18:18:07,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 18:18:07,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 18:18:07,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 18:18:07,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 06:18:04" (1/3) ... [2020-10-27 18:18:07,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3768113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:18:07, skipping insertion in model container [2020-10-27 18:18:07,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:18:05" (2/3) ... [2020-10-27 18:18:07,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3768113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:18:07, skipping insertion in model container [2020-10-27 18:18:07,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:18:07" (3/3) ... [2020-10-27 18:18:07,398 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label51.c [2020-10-27 18:18:07,410 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 18:18:07,416 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 18:18:07,431 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 18:18:07,462 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 18:18:07,462 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 18:18:07,462 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 18:18:07,462 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 18:18:07,462 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 18:18:07,462 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 18:18:07,462 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 18:18:07,463 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 18:18:07,501 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-27 18:18:07,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-27 18:18:07,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:07,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:18:07,514 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:07,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:07,529 INFO L82 PathProgramCache]: Analyzing trace with hash 652322656, now seen corresponding path program 1 times [2020-10-27 18:18:07,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:07,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444278066] [2020-10-27 18:18:07,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:07,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:08,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:08,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-27 18:18:08,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:08,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 540 [2020-10-27 18:18:08,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:08,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 18:18:08,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 18:18:08,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-27 18:18:08,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 18:18:08,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:08,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:08,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:08,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:08,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:08,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 18:18:08,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:08,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:08,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:08,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 18:18:08,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:18:08,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444278066] [2020-10-27 18:18:08,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 18:18:08,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-27 18:18:08,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015593031] [2020-10-27 18:18:08,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 18:18:08,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:18:08,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 18:18:08,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 18:18:08,487 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 4 states. [2020-10-27 18:18:10,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:18:10,653 INFO L93 Difference]: Finished difference Result 703 states and 1246 transitions. [2020-10-27 18:18:10,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:18:10,655 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2020-10-27 18:18:10,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:18:10,671 INFO L225 Difference]: With dead ends: 703 [2020-10-27 18:18:10,671 INFO L226 Difference]: Without dead ends: 381 [2020-10-27 18:18:10,678 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 [2020-10-27 18:18:10,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-27 18:18:10,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 377. [2020-10-27 18:18:10,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-10-27 18:18:10,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 553 transitions. [2020-10-27 18:18:10,762 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 553 transitions. Word has length 42 [2020-10-27 18:18:10,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:18:10,763 INFO L481 AbstractCegarLoop]: Abstraction has 377 states and 553 transitions. [2020-10-27 18:18:10,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 18:18:10,763 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 553 transitions. [2020-10-27 18:18:10,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 18:18:10,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:10,768 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:18:10,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 18:18:10,769 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:10,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:10,770 INFO L82 PathProgramCache]: Analyzing trace with hash 592818476, now seen corresponding path program 1 times [2020-10-27 18:18:10,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:10,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303430134] [2020-10-27 18:18:10,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:10,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:11,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:11,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:11,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:11,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-27 18:18:11,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 18:18:11,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1068 [2020-10-27 18:18:11,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:11,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:18:11,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-27 18:18:11,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-27 18:18:11,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:18:12,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:12,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:12,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:12,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:12,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:12,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 18:18:12,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:12,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:12,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:12,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:18:12,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:18:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:12,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:12,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:12,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-27 18:18:12,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:12,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 18:18:12,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:12,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:12,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-27 18:18:12,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:12,278 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:18:12,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303430134] [2020-10-27 18:18:12,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:18:12,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:18:12,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009516240] [2020-10-27 18:18:12,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:18:12,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:18:12,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:18:12,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:18:12,286 INFO L87 Difference]: Start difference. First operand 377 states and 553 transitions. Second operand 5 states. [2020-10-27 18:18:12,704 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-10-27 18:18:13,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:18:13,876 INFO L93 Difference]: Finished difference Result 785 states and 1145 transitions. [2020-10-27 18:18:13,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:18:13,878 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-10-27 18:18:13,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:18:13,883 INFO L225 Difference]: With dead ends: 785 [2020-10-27 18:18:13,883 INFO L226 Difference]: Without dead ends: 381 [2020-10-27 18:18:13,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:18:13,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-27 18:18:13,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 377. [2020-10-27 18:18:13,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-10-27 18:18:13,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 507 transitions. [2020-10-27 18:18:13,918 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 507 transitions. Word has length 111 [2020-10-27 18:18:13,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:18:13,919 INFO L481 AbstractCegarLoop]: Abstraction has 377 states and 507 transitions. [2020-10-27 18:18:13,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:18:13,919 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 507 transitions. [2020-10-27 18:18:13,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-27 18:18:13,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:13,922 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:18:13,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 18:18:13,923 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:13,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:13,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1417475876, now seen corresponding path program 1 times [2020-10-27 18:18:13,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:13,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138201719] [2020-10-27 18:18:13,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:14,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:14,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:15,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:15,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 127 [2020-10-27 18:18:15,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 18:18:15,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1278 [2020-10-27 18:18:15,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:15,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:18:15,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-27 18:18:15,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 18:18:15,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:15,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:15,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:15,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:15,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:15,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:15,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:18:15,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:15,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:15,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:15,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:15,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:15,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:18:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:15,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:15,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:15,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 18:18:15,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:15,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-27 18:18:15,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:15,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:15,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:15,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-27 18:18:15,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:15,656 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:18:15,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138201719] [2020-10-27 18:18:15,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:18:15,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 18:18:15,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080921321] [2020-10-27 18:18:15,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 18:18:15,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:18:15,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 18:18:15,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:18:15,664 INFO L87 Difference]: Start difference. First operand 377 states and 507 transitions. Second operand 6 states. [2020-10-27 18:18:18,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:18:18,970 INFO L93 Difference]: Finished difference Result 1488 states and 2039 transitions. [2020-10-27 18:18:18,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 18:18:18,974 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2020-10-27 18:18:18,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:18:18,982 INFO L225 Difference]: With dead ends: 1488 [2020-10-27 18:18:18,982 INFO L226 Difference]: Without dead ends: 1117 [2020-10-27 18:18:18,984 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 18:18:18,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2020-10-27 18:18:19,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 931. [2020-10-27 18:18:19,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2020-10-27 18:18:19,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1214 transitions. [2020-10-27 18:18:19,035 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1214 transitions. Word has length 115 [2020-10-27 18:18:19,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:18:19,036 INFO L481 AbstractCegarLoop]: Abstraction has 931 states and 1214 transitions. [2020-10-27 18:18:19,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 18:18:19,037 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1214 transitions. [2020-10-27 18:18:19,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-27 18:18:19,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:19,044 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:18:19,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 18:18:19,044 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:19,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:19,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1487233660, now seen corresponding path program 1 times [2020-10-27 18:18:19,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:19,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207784712] [2020-10-27 18:18:19,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:19,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:19,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:19,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:19,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:22,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:22,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:24,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:24,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-10-27 18:18:24,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:18:24,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-27 18:18:24,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:24,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:18:24,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-10-27 18:18:24,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 18:18:24,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:24,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:24,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:24,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:24,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:24,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:24,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:18:24,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:24,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:24,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:24,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:24,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:24,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:18:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:24,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:24,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:24,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 18:18:24,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:24,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 18:18:24,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:24,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:24,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:24,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:24,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:24,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 18:18:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:24,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:24,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:24,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-27 18:18:24,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:24,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 18:18:24,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:24,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-27 18:18:24,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:24,477 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-10-27 18:18:24,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207784712] [2020-10-27 18:18:24,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:18:24,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:18:24,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911916193] [2020-10-27 18:18:24,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:18:24,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:18:24,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:18:24,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:18:24,481 INFO L87 Difference]: Start difference. First operand 931 states and 1214 transitions. Second operand 5 states. [2020-10-27 18:18:26,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:18:26,497 INFO L93 Difference]: Finished difference Result 2412 states and 3230 transitions. [2020-10-27 18:18:26,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:18:26,498 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2020-10-27 18:18:26,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:18:26,514 INFO L225 Difference]: With dead ends: 2412 [2020-10-27 18:18:26,515 INFO L226 Difference]: Without dead ends: 1487 [2020-10-27 18:18:26,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:18:26,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2020-10-27 18:18:26,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1119. [2020-10-27 18:18:26,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1119 states. [2020-10-27 18:18:26,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1418 transitions. [2020-10-27 18:18:26,563 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1418 transitions. Word has length 209 [2020-10-27 18:18:26,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:18:26,564 INFO L481 AbstractCegarLoop]: Abstraction has 1119 states and 1418 transitions. [2020-10-27 18:18:26,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:18:26,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1418 transitions. [2020-10-27 18:18:26,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-27 18:18:26,569 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:26,570 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:18:26,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 18:18:26,570 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:26,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:26,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1093520720, now seen corresponding path program 1 times [2020-10-27 18:18:26,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:26,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465085001] [2020-10-27 18:18:26,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:26,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:26,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:27,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:29,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:29,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-10-27 18:18:29,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 18:18:29,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2900 [2020-10-27 18:18:29,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:29,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:18:29,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-27 18:18:29,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 18:18:29,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:29,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:29,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:29,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:29,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:29,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:29,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 18:18:29,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:29,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:29,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:29,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:18:29,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:29,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:29,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:29,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 18:18:29,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:29,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-27 18:18:29,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:29,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:29,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:29,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-27 18:18:29,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:30,026 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 18:18:30,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465085001] [2020-10-27 18:18:30,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:18:30,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-27 18:18:30,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74815603] [2020-10-27 18:18:30,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 18:18:30,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:18:30,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 18:18:30,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:18:30,036 INFO L87 Difference]: Start difference. First operand 1119 states and 1418 transitions. Second operand 6 states. [2020-10-27 18:18:32,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:18:32,928 INFO L93 Difference]: Finished difference Result 2788 states and 3652 transitions. [2020-10-27 18:18:32,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-27 18:18:32,931 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2020-10-27 18:18:32,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:18:32,942 INFO L225 Difference]: With dead ends: 2788 [2020-10-27 18:18:32,942 INFO L226 Difference]: Without dead ends: 1675 [2020-10-27 18:18:32,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-27 18:18:32,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2020-10-27 18:18:32,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1671. [2020-10-27 18:18:32,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1671 states. [2020-10-27 18:18:33,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2138 transitions. [2020-10-27 18:18:33,004 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2138 transitions. Word has length 221 [2020-10-27 18:18:33,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:18:33,005 INFO L481 AbstractCegarLoop]: Abstraction has 1671 states and 2138 transitions. [2020-10-27 18:18:33,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 18:18:33,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2138 transitions. [2020-10-27 18:18:33,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-27 18:18:33,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:33,013 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:18:33,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 18:18:33,013 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:33,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:33,014 INFO L82 PathProgramCache]: Analyzing trace with hash -539300108, now seen corresponding path program 1 times [2020-10-27 18:18:33,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:33,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [933334530] [2020-10-27 18:18:33,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:33,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:33,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:33,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:38,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:38,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 340 [2020-10-27 18:18:38,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 18:18:38,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-10-27 18:18:38,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:38,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:18:38,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-27 18:18:38,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-27 18:18:38,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:38,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:38,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:38,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:38,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:38,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:38,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:18:38,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:38,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:38,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:38,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:38,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:38,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:18:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:38,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:38,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:38,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-27 18:18:38,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:38,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-27 18:18:38,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:38,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:38,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:38,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-27 18:18:38,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:38,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-27 18:18:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:38,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:38,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:38,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-27 18:18:38,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:38,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-27 18:18:38,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:18:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:18:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 18:18:38,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:38,907 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 170 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-27 18:18:38,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [933334530] [2020-10-27 18:18:38,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:18:38,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:18:38,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127262282] [2020-10-27 18:18:38,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:18:38,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:18:38,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:18:38,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:18:38,913 INFO L87 Difference]: Start difference. First operand 1671 states and 2138 transitions. Second operand 7 states. [2020-10-27 18:18:41,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:18:41,857 INFO L93 Difference]: Finished difference Result 3818 states and 5074 transitions. [2020-10-27 18:18:41,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 18:18:41,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 326 [2020-10-27 18:18:41,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:18:41,877 INFO L225 Difference]: With dead ends: 3818 [2020-10-27 18:18:41,877 INFO L226 Difference]: Without dead ends: 1959 [2020-10-27 18:18:41,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-27 18:18:41,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2020-10-27 18:18:41,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1871. [2020-10-27 18:18:41,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1871 states. [2020-10-27 18:18:41,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1871 states to 1871 states and 2260 transitions. [2020-10-27 18:18:41,990 INFO L78 Accepts]: Start accepts. Automaton has 1871 states and 2260 transitions. Word has length 326 [2020-10-27 18:18:41,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:18:41,995 INFO L481 AbstractCegarLoop]: Abstraction has 1871 states and 2260 transitions. [2020-10-27 18:18:41,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:18:41,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1871 states and 2260 transitions. [2020-10-27 18:18:42,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-10-27 18:18:42,010 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:42,011 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:18:42,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 18:18:42,011 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:42,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:42,012 INFO L82 PathProgramCache]: Analyzing trace with hash 111326316, now seen corresponding path program 1 times [2020-10-27 18:18:42,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:42,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1215540936] [2020-10-27 18:18:42,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:42,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:42,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:42,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:46,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:47,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:47,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 348 [2020-10-27 18:18:47,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:18:47,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-10-27 18:18:47,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:47,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 18:18:47,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-10-27 18:18:47,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-27 18:18:47,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:18:47,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:47,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:47,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:47,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:47,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:47,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:18:47,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:47,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:47,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:47,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:47,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:47,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:18:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:47,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:47,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:47,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 18:18:47,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:47,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 18:18:47,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:47,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:47,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 18:18:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:47,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:47,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:47,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 18:18:47,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:47,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-27 18:18:47,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:47,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:47,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:47,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 18:18:47,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:47,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-27 18:18:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:47,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:47,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:47,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-27 18:18:47,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:47,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-10-27 18:18:47,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:47,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 18:18:47,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:18:47,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 18:18:47,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 246 proven. 35 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-27 18:18:47,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1215540936] [2020-10-27 18:18:47,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:18:47,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 18:18:47,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171785191] [2020-10-27 18:18:47,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 18:18:47,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:18:47,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 18:18:47,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-27 18:18:47,988 INFO L87 Difference]: Start difference. First operand 1871 states and 2260 transitions. Second operand 8 states. [2020-10-27 18:18:51,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:18:51,988 INFO L93 Difference]: Finished difference Result 6188 states and 7788 transitions. [2020-10-27 18:18:51,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-27 18:18:51,988 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 332 [2020-10-27 18:18:51,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:18:52,014 INFO L225 Difference]: With dead ends: 6188 [2020-10-27 18:18:52,014 INFO L226 Difference]: Without dead ends: 4323 [2020-10-27 18:18:52,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-10-27 18:18:52,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4323 states. [2020-10-27 18:18:52,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4323 to 3927. [2020-10-27 18:18:52,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3927 states. [2020-10-27 18:18:52,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3927 states to 3927 states and 4843 transitions. [2020-10-27 18:18:52,164 INFO L78 Accepts]: Start accepts. Automaton has 3927 states and 4843 transitions. Word has length 332 [2020-10-27 18:18:52,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:18:52,165 INFO L481 AbstractCegarLoop]: Abstraction has 3927 states and 4843 transitions. [2020-10-27 18:18:52,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 18:18:52,165 INFO L276 IsEmpty]: Start isEmpty. Operand 3927 states and 4843 transitions. [2020-10-27 18:18:52,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-10-27 18:18:52,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:18:52,174 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:18:52,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 18:18:52,174 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:18:52,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:18:52,175 INFO L82 PathProgramCache]: Analyzing trace with hash -622397252, now seen corresponding path program 1 times [2020-10-27 18:18:52,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:18:52,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009680088] [2020-10-27 18:18:52,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:18:52,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:52,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:52,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:52,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:52,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:56,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:57,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:57,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 360 [2020-10-27 18:18:57,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:18:57,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-27 18:18:57,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:57,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:18:57,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-27 18:18:57,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-27 18:18:57,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:57,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:18:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:57,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:57,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:57,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:18:57,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:57,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 18:18:57,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:57,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:57,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:57,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:57,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:57,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:18:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:57,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:57,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:57,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 18:18:57,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:57,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 18:18:57,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:57,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:18:57,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:57,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:18:57,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:57,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 18:18:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:57,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:57,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:57,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-27 18:18:57,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:57,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 18:18:57,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:57,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:18:57,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:18:57,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-27 18:18:57,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:57,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-10-27 18:18:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:18:57,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:18:57,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:18:57,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-27 18:18:57,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:18:57,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 184 [2020-10-27 18:18:57,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:18:57,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:18:57,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:18:57,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 18:18:57,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:18:58,042 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 269 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-27 18:18:58,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009680088] [2020-10-27 18:18:58,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:18:58,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:18:58,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178059926] [2020-10-27 18:18:58,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:18:58,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:18:58,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:18:58,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:18:58,045 INFO L87 Difference]: Start difference. First operand 3927 states and 4843 transitions. Second operand 7 states. [2020-10-27 18:19:00,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:19:00,818 INFO L93 Difference]: Finished difference Result 7698 states and 9582 transitions. [2020-10-27 18:19:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 18:19:00,818 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 344 [2020-10-27 18:19:00,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:19:00,831 INFO L225 Difference]: With dead ends: 7698 [2020-10-27 18:19:00,831 INFO L226 Difference]: Without dead ends: 2665 [2020-10-27 18:19:00,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-10-27 18:19:00,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2020-10-27 18:19:00,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 2449. [2020-10-27 18:19:00,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2449 states. [2020-10-27 18:19:00,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 2449 states and 2800 transitions. [2020-10-27 18:19:00,916 INFO L78 Accepts]: Start accepts. Automaton has 2449 states and 2800 transitions. Word has length 344 [2020-10-27 18:19:00,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:19:00,917 INFO L481 AbstractCegarLoop]: Abstraction has 2449 states and 2800 transitions. [2020-10-27 18:19:00,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:19:00,917 INFO L276 IsEmpty]: Start isEmpty. Operand 2449 states and 2800 transitions. [2020-10-27 18:19:00,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-10-27 18:19:00,924 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:19:00,924 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:19:00,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 18:19:00,925 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:19:00,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:19:00,925 INFO L82 PathProgramCache]: Analyzing trace with hash 2086976912, now seen corresponding path program 1 times [2020-10-27 18:19:00,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:19:00,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432035047] [2020-10-27 18:19:00,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:19:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:01,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:01,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:01,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:01,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:05,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:05,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 366 [2020-10-27 18:19:05,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:19:05,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-27 18:19:05,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:05,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:19:05,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 215 [2020-10-27 18:19:05,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-27 18:19:05,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:06,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:19:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:06,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:06,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:06,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:19:06,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:06,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 18:19:06,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:06,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:06,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:06,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:06,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:19:06,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:19:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:06,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:06,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:06,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 18:19:06,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:06,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 18:19:06,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:06,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:06,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:06,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:06,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:06,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 18:19:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:06,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:06,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:06,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-27 18:19:06,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:06,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-27 18:19:06,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:06,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:19:06,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:06,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 18:19:06,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:06,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-27 18:19:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:06,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:06,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:06,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-27 18:19:06,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:06,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-27 18:19:06,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:19:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:19:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 18:19:06,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:06,746 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 279 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-27 18:19:06,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432035047] [2020-10-27 18:19:06,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:19:06,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:19:06,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308236464] [2020-10-27 18:19:06,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:19:06,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:19:06,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:19:06,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:19:06,757 INFO L87 Difference]: Start difference. First operand 2449 states and 2800 transitions. Second operand 7 states. [2020-10-27 18:19:09,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:19:09,240 INFO L93 Difference]: Finished difference Result 5464 states and 6315 transitions. [2020-10-27 18:19:09,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 18:19:09,241 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 350 [2020-10-27 18:19:09,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:19:09,255 INFO L225 Difference]: With dead ends: 5464 [2020-10-27 18:19:09,256 INFO L226 Difference]: Without dead ends: 3021 [2020-10-27 18:19:09,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 18:19:09,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3021 states. [2020-10-27 18:19:09,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3021 to 3007. [2020-10-27 18:19:09,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3007 states. [2020-10-27 18:19:09,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 3444 transitions. [2020-10-27 18:19:09,346 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 3444 transitions. Word has length 350 [2020-10-27 18:19:09,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:19:09,347 INFO L481 AbstractCegarLoop]: Abstraction has 3007 states and 3444 transitions. [2020-10-27 18:19:09,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:19:09,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 3444 transitions. [2020-10-27 18:19:09,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2020-10-27 18:19:09,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:19:09,355 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:19:09,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 18:19:09,355 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:19:09,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:19:09,356 INFO L82 PathProgramCache]: Analyzing trace with hash 2027415264, now seen corresponding path program 1 times [2020-10-27 18:19:09,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:19:09,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839230808] [2020-10-27 18:19:09,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:19:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:09,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:09,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:09,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:09,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:14,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:14,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 377 [2020-10-27 18:19:14,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:19:14,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-27 18:19:14,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:14,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:19:14,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 197 [2020-10-27 18:19:14,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-27 18:19:14,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:14,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:19:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:14,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:14,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:14,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:19:14,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:14,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 18:19:14,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:14,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:14,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:14,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:14,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:14,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:19:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:14,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:14,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:14,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 18:19:14,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:14,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 18:19:14,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:14,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:14,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:14,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:14,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:14,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 18:19:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:14,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:14,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:14,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 18:19:14,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:14,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 18:19:14,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:19:14,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:14,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-27 18:19:14,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:14,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-10-27 18:19:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:14,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:14,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:14,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-27 18:19:14,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:14,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-27 18:19:14,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:14,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:19:14,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:19:14,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 18:19:14,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:15,116 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 286 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-27 18:19:15,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839230808] [2020-10-27 18:19:15,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:19:15,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:19:15,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715593418] [2020-10-27 18:19:15,118 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:19:15,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:19:15,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:19:15,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:19:15,124 INFO L87 Difference]: Start difference. First operand 3007 states and 3444 transitions. Second operand 7 states. [2020-10-27 18:19:18,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:19:18,038 INFO L93 Difference]: Finished difference Result 6464 states and 7714 transitions. [2020-10-27 18:19:18,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 18:19:18,039 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 361 [2020-10-27 18:19:18,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:19:18,058 INFO L225 Difference]: With dead ends: 6464 [2020-10-27 18:19:18,058 INFO L226 Difference]: Without dead ends: 3463 [2020-10-27 18:19:18,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-27 18:19:18,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3463 states. [2020-10-27 18:19:18,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3463 to 3381. [2020-10-27 18:19:18,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3381 states. [2020-10-27 18:19:18,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 3868 transitions. [2020-10-27 18:19:18,173 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 3868 transitions. Word has length 361 [2020-10-27 18:19:18,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:19:18,173 INFO L481 AbstractCegarLoop]: Abstraction has 3381 states and 3868 transitions. [2020-10-27 18:19:18,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:19:18,174 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 3868 transitions. [2020-10-27 18:19:18,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2020-10-27 18:19:18,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:19:18,182 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:19:18,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 18:19:18,183 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:19:18,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:19:18,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1554423868, now seen corresponding path program 1 times [2020-10-27 18:19:18,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:19:18,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [988736749] [2020-10-27 18:19:18,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:19:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:18,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:18,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:18,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:18,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:23,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:23,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 395 [2020-10-27 18:19:23,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 18:19:23,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-27 18:19:23,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:23,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:19:23,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 215 [2020-10-27 18:19:23,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-27 18:19:23,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:23,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:19:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:23,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:23,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:23,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:19:23,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:23,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 18:19:23,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:23,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:23,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:23,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:23,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:23,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:19:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:23,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:23,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:23,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 18:19:23,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:23,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 18:19:23,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:23,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:23,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:23,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:23,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:23,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-27 18:19:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:23,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:23,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:23,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-27 18:19:23,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:23,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 18:19:23,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:23,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:19:23,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:23,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 18:19:23,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:23,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-27 18:19:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:23,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:23,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:23,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-27 18:19:23,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:23,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-27 18:19:23,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:23,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:19:23,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:19:23,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-27 18:19:23,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:24,001 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 304 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2020-10-27 18:19:24,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [988736749] [2020-10-27 18:19:24,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:19:24,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 18:19:24,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760922397] [2020-10-27 18:19:24,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 18:19:24,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:19:24,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 18:19:24,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 18:19:24,003 INFO L87 Difference]: Start difference. First operand 3381 states and 3868 transitions. Second operand 7 states. [2020-10-27 18:19:26,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:19:26,133 INFO L93 Difference]: Finished difference Result 6954 states and 7953 transitions. [2020-10-27 18:19:26,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 18:19:26,133 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 379 [2020-10-27 18:19:26,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:19:26,148 INFO L225 Difference]: With dead ends: 6954 [2020-10-27 18:19:26,148 INFO L226 Difference]: Without dead ends: 3395 [2020-10-27 18:19:26,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-27 18:19:26,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3395 states. [2020-10-27 18:19:26,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3395 to 3381. [2020-10-27 18:19:26,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3381 states. [2020-10-27 18:19:26,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 3831 transitions. [2020-10-27 18:19:26,244 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 3831 transitions. Word has length 379 [2020-10-27 18:19:26,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:19:26,244 INFO L481 AbstractCegarLoop]: Abstraction has 3381 states and 3831 transitions. [2020-10-27 18:19:26,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 18:19:26,244 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 3831 transitions. [2020-10-27 18:19:26,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2020-10-27 18:19:26,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:19:26,254 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-27 18:19:26,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 18:19:26,254 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:19:26,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:19:26,255 INFO L82 PathProgramCache]: Analyzing trace with hash -549535704, now seen corresponding path program 1 times [2020-10-27 18:19:26,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:19:26,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345655005] [2020-10-27 18:19:26,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:19:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:26,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:26,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:26,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:27,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:28,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:31,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:31,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 458 [2020-10-27 18:19:31,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 18:19:31,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4758 [2020-10-27 18:19:31,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 18:19:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 226 [2020-10-27 18:19:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 228 [2020-10-27 18:19:31,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:31,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:19:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:31,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:31,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:31,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:19:31,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:31,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 18:19:31,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:31,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:31,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:31,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:31,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:31,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:19:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:31,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:31,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:31,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-27 18:19:31,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:31,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 18:19:31,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:31,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:31,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:31,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:31,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:31,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 18:19:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:31,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:31,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:31,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-27 18:19:31,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:31,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-27 18:19:31,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:31,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:19:31,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:31,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 18:19:31,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:31,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-27 18:19:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:31,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:31,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:31,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 18:19:31,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:31,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 18:19:31,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:31,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:19:31,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:19:31,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-27 18:19:31,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:31,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2020-10-27 18:19:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:31,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:31,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:31,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-27 18:19:31,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:31,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-27 18:19:31,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:31,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 18:19:31,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 18:19:31,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-27 18:19:31,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:31,904 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 414 proven. 70 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2020-10-27 18:19:31,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345655005] [2020-10-27 18:19:31,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:19:31,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 18:19:31,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296319312] [2020-10-27 18:19:31,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 18:19:31,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:19:31,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 18:19:31,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-27 18:19:31,907 INFO L87 Difference]: Start difference. First operand 3381 states and 3831 transitions. Second operand 8 states. [2020-10-27 18:19:34,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:19:34,543 INFO L93 Difference]: Finished difference Result 8056 states and 9170 transitions. [2020-10-27 18:19:34,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 18:19:34,543 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 440 [2020-10-27 18:19:34,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:19:34,575 INFO L225 Difference]: With dead ends: 8056 [2020-10-27 18:19:34,576 INFO L226 Difference]: Without dead ends: 4497 [2020-10-27 18:19:34,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-27 18:19:34,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4497 states. [2020-10-27 18:19:34,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4497 to 4299. [2020-10-27 18:19:34,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4299 states. [2020-10-27 18:19:34,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4299 states to 4299 states and 4843 transitions. [2020-10-27 18:19:34,705 INFO L78 Accepts]: Start accepts. Automaton has 4299 states and 4843 transitions. Word has length 440 [2020-10-27 18:19:34,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:19:34,707 INFO L481 AbstractCegarLoop]: Abstraction has 4299 states and 4843 transitions. [2020-10-27 18:19:34,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 18:19:34,707 INFO L276 IsEmpty]: Start isEmpty. Operand 4299 states and 4843 transitions. [2020-10-27 18:19:34,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2020-10-27 18:19:34,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 18:19:34,717 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 18:19:34,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 18:19:34,718 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 18:19:34,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 18:19:34,718 INFO L82 PathProgramCache]: Analyzing trace with hash 535413924, now seen corresponding path program 1 times [2020-10-27 18:19:34,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 18:19:34,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440900231] [2020-10-27 18:19:34,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 18:19:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:34,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:34,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:35,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:35,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:35,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:36,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:39,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:39,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 487 [2020-10-27 18:19:39,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 18:19:39,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-27 18:19:39,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:39,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 18:19:39,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 443 [2020-10-27 18:19:39,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-27 18:19:39,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:39,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 18:19:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:39,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:39,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:39,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 18:19:39,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:39,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 18:19:39,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:39,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:39,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:39,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:39,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 18:19:39,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 18:19:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:39,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:40,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:40,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-27 18:19:40,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:40,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-27 18:19:40,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:40,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:40,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:40,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:40,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:40,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-27 18:19:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:40,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:40,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:40,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-27 18:19:40,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:40,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 18:19:40,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:40,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:40,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:40,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:40,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:40,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-27 18:19:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:40,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:40,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:40,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-27 18:19:40,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:40,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 18:19:40,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:40,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 18:19:40,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:40,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 18:19:40,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:40,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2020-10-27 18:19:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 18:19:40,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 18:19:40,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 18:19:40,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-27 18:19:40,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 18:19:40,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-27 18:19:40,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 18:19:40,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 18:19:40,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 18:19:40,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 129 [2020-10-27 18:19:40,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 18:19:40,368 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 141 proven. 4 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2020-10-27 18:19:40,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440900231] [2020-10-27 18:19:40,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 18:19:40,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 18:19:40,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899506352] [2020-10-27 18:19:40,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 18:19:40,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 18:19:40,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 18:19:40,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 18:19:40,371 INFO L87 Difference]: Start difference. First operand 4299 states and 4843 transitions. Second operand 5 states. [2020-10-27 18:19:41,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 18:19:41,629 INFO L93 Difference]: Finished difference Result 4322 states and 4870 transitions. [2020-10-27 18:19:41,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 18:19:41,629 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 469 [2020-10-27 18:19:41,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 18:19:41,633 INFO L225 Difference]: With dead ends: 4322 [2020-10-27 18:19:41,633 INFO L226 Difference]: Without dead ends: 0 [2020-10-27 18:19:41,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 18:19:41,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-27 18:19:41,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-27 18:19:41,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-27 18:19:41,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-27 18:19:41,644 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 469 [2020-10-27 18:19:41,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 18:19:41,645 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-27 18:19:41,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 18:19:41,645 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-27 18:19:41,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-27 18:19:41,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 18:19:41,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-27 18:19:43,025 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 293 DAG size of output: 210 [2020-10-27 18:19:44,302 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 210 [2020-10-27 18:19:45,270 WARN L193 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 40 [2020-10-27 18:19:46,642 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 203 DAG size of output: 62 [2020-10-27 18:19:47,581 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 40 [2020-10-27 18:19:48,009 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 33 [2020-10-27 18:19:48,014 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-27 18:19:48,014 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-27 18:19:48,014 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-27 18:19:48,014 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-27 18:19:48,015 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-27 18:19:48,015 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|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~inputA~0 |old(~inputA~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a15~0 |old(~a15~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a24~0 |old(~a24~0)|) (= ~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)|) (= |#t~string7.base| |old(#t~string7.base)|)) [2020-10-27 18:19:48,015 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-27 18:19:48,015 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-27 18:19:48,015 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-27 18:19:48,015 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-27 18:19:48,015 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-27 18:19:48,015 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-27 18:19:48,015 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-27 18:19:48,015 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-27 18:19:48,015 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,016 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,016 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,016 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-27 18:19:48,016 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-27 18:19:48,016 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-27 18:19:48,016 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-27 18:19:48,016 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-27 18:19:48,016 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-27 18:19:48,016 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-27 18:19:48,016 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-27 18:19:48,016 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,016 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,016 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,017 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-27 18:19:48,017 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-27 18:19:48,017 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-27 18:19:48,017 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-27 18:19:48,017 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-27 18:19:48,017 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-27 18:19:48,017 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-27 18:19:48,017 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-27 18:19:48,017 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,017 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,017 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,018 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-27 18:19:48,018 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-27 18:19:48,018 INFO L270 CegarLoopResult]: At program point L111(line 111) the Hoare annotation is: (let ((.cse2 (not (<= |old(~a15~0)| 6))) (.cse3 (= 8 |old(~a21~0)|)) (.cse1 (= 7 |old(~a15~0)|)) (.cse0 (not (<= |old(~a12~0)| 599999)))) (and (or .cse0 .cse1) (not (<= |old(~a12~0)| 3)) (or (not (= 7 |old(~a21~0)|)) .cse2) (or (not .cse3) .cse2) (or .cse3 (not .cse1)) (or (not (= |old(~a24~0)| 1)) (not (<= 17688 |old(~a12~0)|)) .cse0))) [2020-10-27 18:19:48,018 INFO L274 CegarLoopResult]: For program point L111-1(line 111) no Hoare annotation was computed. [2020-10-27 18:19:48,018 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-27 18:19:48,018 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-27 18:19:48,018 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-27 18:19:48,024 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-27 18:19:48,024 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-27 18:19:48,024 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-27 18:19:48,024 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,025 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,025 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,025 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-27 18:19:48,025 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-27 18:19:48,025 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-27 18:19:48,025 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-27 18:19:48,025 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-27 18:19:48,025 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-27 18:19:48,025 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-27 18:19:48,026 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,026 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,026 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,026 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-27 18:19:48,027 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-27 18:19:48,027 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-27 18:19:48,027 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-27 18:19:48,027 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-27 18:19:48,027 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,027 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-27 18:19:48,027 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-27 18:19:48,027 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-27 18:19:48,027 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-27 18:19:48,027 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,027 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,028 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,028 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-27 18:19:48,028 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-27 18:19:48,028 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-27 18:19:48,028 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-27 18:19:48,028 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-27 18:19:48,028 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-27 18:19:48,028 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-27 18:19:48,028 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-27 18:19:48,028 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,028 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,028 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,028 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-27 18:19:48,029 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-27 18:19:48,029 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-27 18:19:48,029 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-27 18:19:48,029 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-27 18:19:48,029 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-27 18:19:48,029 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-27 18:19:48,029 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-27 18:19:48,029 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,029 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,029 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,029 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-27 18:19:48,030 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 874) the Hoare annotation is: (let ((.cse5 (= 8 |old(~a21~0)|)) (.cse2 (= ~a24~0 |old(~a24~0)|)) (.cse3 (= ~a21~0 |old(~a21~0)|)) (.cse4 (= ~a12~0 |old(~a12~0)|)) (.cse10 (= ~a15~0 |old(~a15~0)|))) (let ((.cse6 (= 7 ~a15~0)) (.cse7 (not (= 7 |old(~a15~0)|))) (.cse0 (and .cse2 .cse3 .cse4 .cse10)) (.cse1 (not (<= |old(~a12~0)| 599999))) (.cse9 (= ~a21~0 8)) (.cse8 (not .cse5)) (.cse11 (not (<= |old(~a15~0)| 6)))) (and (or (not (<= 9 |old(~a15~0)|)) .cse0 .cse1) (or (not (= 8 |old(~a15~0)|)) (and .cse2 .cse3 (= ~a15~0 8) .cse4) .cse1) (or .cse5 (and .cse6 .cse2 .cse3 .cse4) .cse7) (or (not (= |old(~a24~0)| 1)) .cse8 (not (<= 17688 |old(~a12~0)|)) (and (= ~a24~0 1) .cse9 .cse4 .cse10) .cse1 .cse7) (or (not (= 7 |old(~a21~0)|)) (and .cse2 .cse4 (= 7 ~a21~0) .cse10) .cse11) (or (not (<= |old(~a12~0)| 3)) .cse8 (and .cse6 .cse2 .cse9 .cse4) .cse7) (or .cse11 .cse0 .cse1) (or (and .cse2 .cse9 .cse4 .cse10) .cse8 .cse11)))) [2020-10-27 18:19:48,030 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-27 18:19:48,030 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-27 18:19:48,030 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-27 18:19:48,030 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-27 18:19:48,030 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-27 18:19:48,030 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-27 18:19:48,030 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-27 18:19:48,032 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,033 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,033 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,033 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-27 18:19:48,034 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-27 18:19:48,034 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-27 18:19:48,034 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-27 18:19:48,034 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-27 18:19:48,034 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-27 18:19:48,034 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-27 18:19:48,034 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-27 18:19:48,034 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,034 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,034 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,034 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-27 18:19:48,035 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-27 18:19:48,035 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-27 18:19:48,035 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-27 18:19:48,035 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-27 18:19:48,035 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-27 18:19:48,035 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-27 18:19:48,035 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-27 18:19:48,035 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,035 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,035 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,035 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-27 18:19:48,036 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-27 18:19:48,036 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-27 18:19:48,036 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-27 18:19:48,036 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-27 18:19:48,036 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-27 18:19:48,036 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-27 18:19:48,036 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-27 18:19:48,036 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,036 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,036 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,037 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-27 18:19:48,037 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-27 18:19:48,037 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-27 18:19:48,037 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-27 18:19:48,038 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-27 18:19:48,039 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-27 18:19:48,039 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-27 18:19:48,039 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-27 18:19:48,039 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,039 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,039 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-27 18:19:48,039 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-27 18:19:48,039 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-27 18:19:48,039 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-27 18:19:48,039 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-27 18:19:48,039 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-27 18:19:48,040 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-27 18:19:48,040 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-27 18:19:48,040 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,040 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,040 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-27 18:19:48,040 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-27 18:19:48,040 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-27 18:19:48,040 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-27 18:19:48,040 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-27 18:19:48,040 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-27 18:19:48,040 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,040 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,041 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-27 18:19:48,041 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-27 18:19:48,041 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-27 18:19:48,041 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-27 18:19:48,041 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-27 18:19:48,041 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-27 18:19:48,041 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-27 18:19:48,041 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-27 18:19:48,041 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,041 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,041 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-27 18:19:48,042 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-27 18:19:48,042 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-27 18:19:48,042 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-27 18:19:48,042 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,042 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-27 18:19:48,042 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-27 18:19:48,042 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-27 18:19:48,042 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,042 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,042 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-27 18:19:48,042 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-27 18:19:48,042 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-27 18:19:48,043 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-27 18:19:48,043 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-27 18:19:48,043 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-27 18:19:48,043 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,043 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,043 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-27 18:19:48,043 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,043 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-27 18:19:48,043 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-27 18:19:48,043 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-27 18:19:48,043 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-27 18:19:48,043 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-27 18:19:48,043 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-27 18:19:48,044 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-27 18:19:48,044 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-27 18:19:48,044 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-27 18:19:48,044 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-27 18:19:48,044 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,044 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,044 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,044 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-27 18:19:48,044 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-27 18:19:48,044 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-27 18:19:48,044 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-27 18:19:48,044 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-27 18:19:48,044 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-27 18:19:48,045 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-27 18:19:48,045 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-27 18:19:48,045 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,045 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,045 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,045 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-27 18:19:48,045 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-27 18:19:48,045 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-27 18:19:48,045 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-27 18:19:48,045 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-27 18:19:48,045 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-27 18:19:48,045 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-27 18:19:48,046 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-27 18:19:48,046 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,046 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,046 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,046 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-27 18:19:48,046 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-27 18:19:48,046 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-27 18:19:48,046 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-27 18:19:48,046 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-27 18:19:48,046 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-27 18:19:48,046 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-27 18:19:48,047 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-27 18:19:48,047 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-27 18:19:48,047 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,048 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,049 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-27 18:19:48,049 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-27 18:19:48,049 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a12~0 3) (= ~a15~0 8) (= 7 ~a21~0)) [2020-10-27 18:19:48,049 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-27 18:19:48,050 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-27 18:19:48,050 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 876 892) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (<= |old(~a12~0)| 3)) (and (= ~a24~0 |old(~a24~0)|) (= ~a15~0 8) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|))) [2020-10-27 18:19:48,050 INFO L270 CegarLoopResult]: At program point L890(line 890) the Hoare annotation is: (let ((.cse2 (= ~a21~0 8)) (.cse0 (<= ~a15~0 6)) (.cse1 (<= ~a12~0 599999))) (or (not (= 7 |old(~a21~0)|)) (and (= 7 ~a21~0) .cse0) (<= ~a12~0 3) (not (<= |old(~a12~0)| 3)) (not (= 8 |old(~a15~0)|)) (and (<= 17688 ~a12~0) (= ~a24~0 1) .cse1) (and (<= 9 ~a15~0) .cse1) (and (= 7 ~a15~0) (not .cse2)) (and .cse1 .cse0) (and .cse2 .cse0) (and (= ~a15~0 8) .cse1))) [2020-10-27 18:19:48,050 INFO L274 CegarLoopResult]: For program point L890-1(line 890) no Hoare annotation was computed. [2020-10-27 18:19:48,050 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 876 892) no Hoare annotation was computed. [2020-10-27 18:19:48,053 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-27 18:19:48,053 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse2 (= ~a21~0 8)) (.cse0 (<= ~a15~0 6)) (.cse1 (<= ~a12~0 599999))) (or (not (= 7 |old(~a21~0)|)) (and (= 7 ~a21~0) .cse0) (<= ~a12~0 3) (not (<= |old(~a12~0)| 3)) (not (= 8 |old(~a15~0)|)) (and (<= 17688 ~a12~0) (= ~a24~0 1) .cse1) (and (<= 9 ~a15~0) .cse1) (and (= 7 ~a15~0) (not .cse2)) (and .cse1 .cse0) (and .cse2 .cse0) (and (= ~a15~0 8) .cse1))) [2020-10-27 18:19:48,053 INFO L274 CegarLoopResult]: For program point L882-3(lines 876 892) no Hoare annotation was computed. [2020-10-27 18:19:48,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 06:19:48 BoogieIcfgContainer [2020-10-27 18:19:48,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 18:19:48,093 INFO L168 Benchmark]: Toolchain (without parser) took 103252.76 ms. Allocated memory was 151.0 MB in the beginning and 1.1 GB in the end (delta: 943.7 MB). Free memory was 122.8 MB in the beginning and 879.0 MB in the end (delta: -756.2 MB). Peak memory consumption was 663.3 MB. Max. memory is 8.0 GB. [2020-10-27 18:19:48,093 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 18:19:48,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 789.86 ms. Allocated memory is still 151.0 MB. Free memory was 122.2 MB in the beginning and 125.1 MB in the end (delta: -2.9 MB). Peak memory consumption was 32.0 MB. Max. memory is 8.0 GB. [2020-10-27 18:19:48,097 INFO L168 Benchmark]: Boogie Preprocessor took 169.51 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 119.8 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-27 18:19:48,100 INFO L168 Benchmark]: RCFGBuilder took 1579.91 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 119.8 MB in the beginning and 115.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 77.6 MB. Max. memory is 8.0 GB. [2020-10-27 18:19:48,103 INFO L168 Benchmark]: TraceAbstraction took 100700.96 ms. Allocated memory was 189.8 MB in the beginning and 1.1 GB in the end (delta: 904.9 MB). Free memory was 115.7 MB in the beginning and 879.0 MB in the end (delta: -763.3 MB). Peak memory consumption was 616.6 MB. Max. memory is 8.0 GB. [2020-10-27 18:19:48,108 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 151.0 MB. Free memory is still 123.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 789.86 ms. Allocated memory is still 151.0 MB. Free memory was 122.2 MB in the beginning and 125.1 MB in the end (delta: -2.9 MB). Peak memory consumption was 32.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 169.51 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 119.8 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1579.91 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 119.8 MB in the beginning and 115.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 77.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 100700.96 ms. Allocated memory was 189.8 MB in the beginning and 1.1 GB in the end (delta: 904.9 MB). Free memory was 115.7 MB in the beginning and 879.0 MB in the end (delta: -763.3 MB). Peak memory consumption was 616.6 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: 882]: Loop Invariant Derived loop invariant: (((((((((!(7 == \old(a21)) || (7 == a21 && a15 <= 6)) || a12 <= 3) || !(\old(a12) <= 3)) || !(8 == \old(a15))) || ((17688 <= a12 && a24 == 1) && a12 <= 599999)) || (9 <= a15 && a12 <= 599999)) || (7 == a15 && !(a21 == 8))) || (a12 <= 599999 && a15 <= 6)) || (a21 == 8 && a15 <= 6)) || (a15 == 8 && a12 <= 599999) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 94.1s, OverallIterations: 13, TraceHistogramMax: 5, AutomataDifference: 33.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 364 SDtfs, 6678 SDslu, 445 SDs, 0 SdLazy, 14677 SolverSat, 2213 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 235 GetRequests, 132 SyntacticMatches, 5 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4299occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 1574 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 335 PreInvPairs, 407 NumberOfFragments, 481 HoareAnnotationTreeSize, 335 FomulaSimplifications, 14894533 FormulaSimplificationTreeSizeReduction, 2.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 116738 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 57.3s InterpolantComputationTime, 3699 NumberOfCodeBlocks, 3699 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 3686 ConstructedInterpolants, 0 QuantifiedInterpolants, 2958196 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 3396/3520 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...