/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label12.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:45:30,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:45:30,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:45:30,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:45:30,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:45:30,282 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:45:30,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:45:30,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:45:30,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:45:30,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:45:30,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:45:30,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:45:30,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:45:30,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:45:30,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:45:30,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:45:30,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:45:30,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:45:30,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:45:30,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:45:30,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:45:30,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:45:30,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:45:30,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:45:30,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:45:30,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:45:30,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:45:30,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:45:30,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:45:30,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:45:30,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:45:30,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:45:30,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:45:30,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:45:30,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:45:30,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:45:30,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:45:30,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:45:30,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:45:30,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:45:30,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:45:30,368 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 04:45:30,422 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:45:30,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:45:30,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:45:30,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:45:30,427 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:45:30,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:45:30,428 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:45:30,428 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:45:30,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:45:30,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:45:30,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:45:30,429 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:45:30,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:45:30,430 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:45:30,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:45:30,430 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:45:30,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:45:30,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:45:30,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:45:30,431 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:45:30,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:45:30,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:45:30,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:45:30,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:45:30,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:45:30,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:45:30,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:45:30,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:45:30,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:45:30,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:45:30,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:45:30,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:45:30,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:45:30,919 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:45:30,920 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:45:30,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label12.c [2020-10-29 04:45:31,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e0a96da2/ebe2b6599475493fba5353801e1a2849/FLAG0e3d15681 [2020-10-29 04:45:31,859 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:45:31,860 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label12.c [2020-10-29 04:45:31,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e0a96da2/ebe2b6599475493fba5353801e1a2849/FLAG0e3d15681 [2020-10-29 04:45:32,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1e0a96da2/ebe2b6599475493fba5353801e1a2849 [2020-10-29 04:45:32,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:45:32,100 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:45:32,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:45:32,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:45:32,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:45:32,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:45:32" (1/1) ... [2020-10-29 04:45:32,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5166461a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:32, skipping insertion in model container [2020-10-29 04:45:32,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:45:32" (1/1) ... [2020-10-29 04:45:32,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:45:32,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:45:32,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:45:32,686 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:45:32,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:45:32,887 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:45:32,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:32 WrapperNode [2020-10-29 04:45:32,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:45:32,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:45:32,889 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:45:32,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:45:32,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:32" (1/1) ... [2020-10-29 04:45:32,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:32" (1/1) ... [2020-10-29 04:45:32,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:32" (1/1) ... [2020-10-29 04:45:32,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:32" (1/1) ... [2020-10-29 04:45:32,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:32" (1/1) ... [2020-10-29 04:45:32,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:32" (1/1) ... [2020-10-29 04:45:32,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:32" (1/1) ... [2020-10-29 04:45:33,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:45:33,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:45:33,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:45:33,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:45:33,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:45:33,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:45:33,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:45:33,104 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:45:33,104 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 04:45:33,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:45:33,105 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 04:45:33,105 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:45:33,105 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:45:33,105 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:45:33,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:45:33,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:45:33,106 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 04:45:33,106 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:45:33,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:45:33,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:45:33,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:45:33,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:45:33,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:45:33,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:45:34,427 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:45:34,428 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 04:45:34,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:45:34 BoogieIcfgContainer [2020-10-29 04:45:34,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:45:34,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:45:34,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:45:34,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:45:34,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:45:32" (1/3) ... [2020-10-29 04:45:34,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53009ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:45:34, skipping insertion in model container [2020-10-29 04:45:34,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:32" (2/3) ... [2020-10-29 04:45:34,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53009ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:45:34, skipping insertion in model container [2020-10-29 04:45:34,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:45:34" (3/3) ... [2020-10-29 04:45:34,443 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label12.c [2020-10-29 04:45:34,464 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:45:34,477 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:45:34,507 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:45:34,563 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:45:34,563 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:45:34,564 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:45:34,564 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:45:34,564 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:45:34,564 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:45:34,564 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:45:34,564 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:45:34,619 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-29 04:45:34,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-29 04:45:34,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:45:34,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:45:34,651 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:45:34,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:45:34,670 INFO L82 PathProgramCache]: Analyzing trace with hash 654432275, now seen corresponding path program 1 times [2020-10-29 04:45:34,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:45:34,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [13531184] [2020-10-29 04:45:34,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:45:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:45:35,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:35,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:37,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:45:37,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-29 04:45:37,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:45:37,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2255 [2020-10-29 04:45:37,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:45:37,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:45:37,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:45:37,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:45:37,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 04:45:37,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-29 04:45:37,648 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 04:45:37,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:45:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:45:37,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:37,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:45:37,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:45:37,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:45:37,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 04:45:37,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:45:37,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:45:37,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:45:37,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:45:37,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:45:37,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:45:37,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:45:37,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [13531184] [2020-10-29 04:45:37,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:45:37,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 04:45:37,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589097351] [2020-10-29 04:45:37,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:45:37,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:45:37,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:45:37,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:45:37,863 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-29 04:45:39,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:45:39,573 INFO L93 Difference]: Finished difference Result 587 states and 986 transitions. [2020-10-29 04:45:39,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:45:39,576 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 127 [2020-10-29 04:45:39,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:45:39,593 INFO L225 Difference]: With dead ends: 587 [2020-10-29 04:45:39,593 INFO L226 Difference]: Without dead ends: 287 [2020-10-29 04:45:39,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:45:39,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-29 04:45:39,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 283. [2020-10-29 04:45:39,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-10-29 04:45:39,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 399 transitions. [2020-10-29 04:45:39,743 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 399 transitions. Word has length 127 [2020-10-29 04:45:39,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:45:39,744 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 399 transitions. [2020-10-29 04:45:39,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:45:39,744 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 399 transitions. [2020-10-29 04:45:39,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-10-29 04:45:39,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:45:39,756 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 04:45:39,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:45:39,757 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:45:39,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:45:39,763 INFO L82 PathProgramCache]: Analyzing trace with hash -218464551, now seen corresponding path program 1 times [2020-10-29 04:45:39,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:45:39,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [420812150] [2020-10-29 04:45:39,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:45:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:45:39,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:39,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:40,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:41,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:45:41,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-29 04:45:41,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:45:41,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1946 [2020-10-29 04:45:41,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:45:41,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:45:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:45:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 04:45:41,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 04:45:41,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 04:45:41,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:45:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:45:41,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:41,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:45:41,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:45:41,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:45:42,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:45:42,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:45:42,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:45:42,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:45:42,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:45:42,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:45:42,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:45:42,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:45:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:45:42,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:42,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:45:42,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 04:45:42,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:45:42,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 04:45:42,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:45:42,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:45:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:45:42,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:45:42,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 04:45:42,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:45:42,097 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:45:42,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [420812150] [2020-10-29 04:45:42,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:45:42,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 04:45:42,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971735332] [2020-10-29 04:45:42,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:45:42,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:45:42,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:45:42,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:45:42,101 INFO L87 Difference]: Start difference. First operand 283 states and 399 transitions. Second operand 6 states. [2020-10-29 04:45:44,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:45:44,452 INFO L93 Difference]: Finished difference Result 1112 states and 1615 transitions. [2020-10-29 04:45:44,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 04:45:44,453 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2020-10-29 04:45:44,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:45:44,462 INFO L225 Difference]: With dead ends: 1112 [2020-10-29 04:45:44,462 INFO L226 Difference]: Without dead ends: 835 [2020-10-29 04:45:44,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:45:44,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2020-10-29 04:45:44,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 831. [2020-10-29 04:45:44,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2020-10-29 04:45:44,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1114 transitions. [2020-10-29 04:45:44,531 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1114 transitions. Word has length 137 [2020-10-29 04:45:44,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:45:44,532 INFO L481 AbstractCegarLoop]: Abstraction has 831 states and 1114 transitions. [2020-10-29 04:45:44,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:45:44,532 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1114 transitions. [2020-10-29 04:45:44,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-29 04:45:44,538 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:45:44,538 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 04:45:44,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:45:44,539 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:45:44,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:45:44,539 INFO L82 PathProgramCache]: Analyzing trace with hash -880721346, now seen corresponding path program 1 times [2020-10-29 04:45:44,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:45:44,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284599384] [2020-10-29 04:45:44,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:45:44,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:45:44,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:44,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:46,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:48,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:45:48,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-29 04:45:48,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:45:48,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4008 [2020-10-29 04:45:48,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:45:48,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:45:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:45:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 04:45:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 04:45:48,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 04:45:48,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:45:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:45:48,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:48,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:45:48,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:45:48,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:45:48,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:45:48,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:45:48,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:45:48,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:45:48,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:45:48,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:45:48,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:45:48,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:45:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:45:48,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:48,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:45:48,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 04:45:48,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:45:48,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 04:45:48,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:45:48,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:45:48,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:45:48,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:45:48,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 04:45:48,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:45:48,839 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:45:48,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284599384] [2020-10-29 04:45:48,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:45:48,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:45:48,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098709823] [2020-10-29 04:45:48,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:45:48,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:45:48,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:45:48,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:45:48,847 INFO L87 Difference]: Start difference. First operand 831 states and 1114 transitions. Second operand 5 states. [2020-10-29 04:45:50,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:45:50,352 INFO L93 Difference]: Finished difference Result 2345 states and 3196 transitions. [2020-10-29 04:45:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:45:50,353 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-10-29 04:45:50,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:45:50,364 INFO L225 Difference]: With dead ends: 2345 [2020-10-29 04:45:50,365 INFO L226 Difference]: Without dead ends: 1520 [2020-10-29 04:45:50,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:45:50,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2020-10-29 04:45:50,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1246. [2020-10-29 04:45:50,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1246 states. [2020-10-29 04:45:50,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1613 transitions. [2020-10-29 04:45:50,433 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 1613 transitions. Word has length 142 [2020-10-29 04:45:50,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:45:50,434 INFO L481 AbstractCegarLoop]: Abstraction has 1246 states and 1613 transitions. [2020-10-29 04:45:50,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:45:50,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 1613 transitions. [2020-10-29 04:45:50,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-29 04:45:50,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:45:50,442 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:45:50,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:45:50,442 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:45:50,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:45:50,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1821123000, now seen corresponding path program 1 times [2020-10-29 04:45:50,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:45:50,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1128170196] [2020-10-29 04:45:50,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:45:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:45:50,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:50,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:51,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:52,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:45:52,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-29 04:45:52,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:45:52,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1693 [2020-10-29 04:45:52,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:45:52,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:45:52,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:45:52,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-29 04:45:52,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 04:45:52,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:45:52,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:45:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:45:52,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:52,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:45:52,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:45:52,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:45:52,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:45:52,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:45:52,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:45:52,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:45:52,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:45:52,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:45:52,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:45:52,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:45:52,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:45:52,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:52,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:45:52,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 04:45:52,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:45:52,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:45:52,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:45:52,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:45:52,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:45:52,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:45:52,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:45:52,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 04:45:52,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 04:45:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:45:52,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:52,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:45:52,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-29 04:45:52,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:45:52,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 04:45:52,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:45:52,461 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:45:52,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:45:52,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:45:52,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 04:45:52,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:45:52,525 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 04:45:52,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1128170196] [2020-10-29 04:45:52,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:45:52,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 04:45:52,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875626097] [2020-10-29 04:45:52,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 04:45:52,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:45:52,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 04:45:52,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:45:52,529 INFO L87 Difference]: Start difference. First operand 1246 states and 1613 transitions. Second operand 6 states. [2020-10-29 04:45:54,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:45:54,561 INFO L93 Difference]: Finished difference Result 3038 states and 4013 transitions. [2020-10-29 04:45:54,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 04:45:54,566 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-10-29 04:45:54,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:45:54,580 INFO L225 Difference]: With dead ends: 3038 [2020-10-29 04:45:54,580 INFO L226 Difference]: Without dead ends: 1798 [2020-10-29 04:45:54,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:45:54,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2020-10-29 04:45:54,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1524. [2020-10-29 04:45:54,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1524 states. [2020-10-29 04:45:54,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 1973 transitions. [2020-10-29 04:45:54,686 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 1973 transitions. Word has length 162 [2020-10-29 04:45:54,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:45:54,686 INFO L481 AbstractCegarLoop]: Abstraction has 1524 states and 1973 transitions. [2020-10-29 04:45:54,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 04:45:54,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 1973 transitions. [2020-10-29 04:45:54,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-29 04:45:54,694 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:45:54,695 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:45:54,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:45:54,695 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:45:54,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:45:54,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1993134729, now seen corresponding path program 1 times [2020-10-29 04:45:54,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:45:54,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964944338] [2020-10-29 04:45:54,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:45:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:45:54,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:54,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:55,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:56,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:45:56,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-29 04:45:56,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:45:56,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1566 [2020-10-29 04:45:56,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:45:56,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:45:56,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:45:56,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-29 04:45:56,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-29 04:45:56,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:45:56,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:45:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:45:56,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:56,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:45:56,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:45:56,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:45:56,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:45:56,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:45:56,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:45:56,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:45:56,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:45:56,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:45:56,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:45:56,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:45:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:45:56,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:45:56,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:45:56,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 04:45:56,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:45:56,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-29 04:45:56,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:45:56,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:45:56,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:45:56,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:45:56,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 04:45:56,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-10-29 04:45:56,625 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:45:56,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964944338] [2020-10-29 04:45:56,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:45:56,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:45:56,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770910888] [2020-10-29 04:45:56,627 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:45:56,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:45:56,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:45:56,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:45:56,630 INFO L87 Difference]: Start difference. First operand 1524 states and 1973 transitions. Second operand 5 states. [2020-10-29 04:45:58,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:45:58,197 INFO L93 Difference]: Finished difference Result 4143 states and 5444 transitions. [2020-10-29 04:45:58,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:45:58,198 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-10-29 04:45:58,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:45:58,199 INFO L225 Difference]: With dead ends: 4143 [2020-10-29 04:45:58,199 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 04:45:58,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:45:58,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 04:45:58,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 04:45:58,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 04:45:58,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 04:45:58,208 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-10-29 04:45:58,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:45:58,209 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 04:45:58,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:45:58,209 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 04:45:58,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 04:45:58,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:45:58,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 04:45:59,519 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 39 [2020-10-29 04:45:59,725 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 04:45:59,726 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 04:45:59,726 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 04:45:59,726 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 04:45:59,726 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:45:59,728 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)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-29 04:45:59,728 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:45:59,728 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,728 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,729 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,729 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,729 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,731 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,731 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-29 04:45:59,731 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-29 04:45:59,731 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-29 04:45:59,731 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-29 04:45:59,731 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-29 04:45:59,731 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-29 04:45:59,731 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-29 04:45:59,733 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-29 04:45:59,733 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-29 04:45:59,733 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-29 04:45:59,733 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-29 04:45:59,733 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-29 04:45:59,733 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,734 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,734 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,734 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,734 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,735 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,735 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-29 04:45:59,735 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-29 04:45:59,735 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-29 04:45:59,735 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-29 04:45:59,735 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-29 04:45:59,735 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-29 04:45:59,735 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-29 04:45:59,736 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-29 04:45:59,736 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-29 04:45:59,736 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-29 04:45:59,736 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,736 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,736 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,736 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,736 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,736 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,737 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-29 04:45:59,737 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-29 04:45:59,737 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-29 04:45:59,738 INFO L270 CegarLoopResult]: At program point L538(line 538) the Hoare annotation is: (and (not (= |old(~a8~0)| 13)) (not (<= 15 |old(~a8~0)|)) (not (= 0 |old(~a17~0)|)) (not (= |old(~a7~0)| 0))) [2020-10-29 04:45:59,738 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-29 04:45:59,738 INFO L274 CegarLoopResult]: For program point L538-1(line 538) no Hoare annotation was computed. [2020-10-29 04:45:59,738 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-29 04:45:59,738 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-29 04:45:59,738 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-29 04:45:59,738 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-29 04:45:59,738 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-29 04:45:59,739 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-29 04:45:59,739 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-29 04:45:59,739 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-29 04:45:59,739 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-29 04:45:59,741 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-29 04:45:59,741 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,741 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,741 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,741 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,741 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,741 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-29 04:45:59,741 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-29 04:45:59,741 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-29 04:45:59,742 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-29 04:45:59,742 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-29 04:45:59,742 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-29 04:45:59,742 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-29 04:45:59,742 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-29 04:45:59,742 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-29 04:45:59,742 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,742 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,742 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,742 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,743 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,743 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-29 04:45:59,743 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-29 04:45:59,743 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-29 04:45:59,743 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-29 04:45:59,743 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-29 04:45:59,743 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-29 04:45:59,743 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-29 04:45:59,743 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-29 04:45:59,743 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-29 04:45:59,744 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-29 04:45:59,744 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-29 04:45:59,744 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-29 04:45:59,745 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-29 04:45:59,746 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,746 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,746 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,746 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,746 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,746 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-29 04:45:59,746 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-29 04:45:59,746 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-29 04:45:59,746 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,747 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,747 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-29 04:45:59,747 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-29 04:45:59,748 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-29 04:45:59,748 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-29 04:45:59,748 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-29 04:45:59,748 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-29 04:45:59,748 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,748 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,748 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,748 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,748 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-29 04:45:59,748 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,749 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-29 04:45:59,749 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-29 04:45:59,749 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-29 04:45:59,749 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-29 04:45:59,749 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-29 04:45:59,749 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-29 04:45:59,749 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-29 04:45:59,749 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-29 04:45:59,750 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-29 04:45:59,750 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-29 04:45:59,750 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-29 04:45:59,750 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-29 04:45:59,750 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-29 04:45:59,751 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,751 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,751 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,751 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,751 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,751 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-29 04:45:59,751 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-29 04:45:59,751 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-29 04:45:59,751 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-29 04:45:59,751 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-29 04:45:59,751 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-29 04:45:59,752 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-29 04:45:59,752 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-29 04:45:59,752 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,752 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,752 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse1 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse3 (= ~a21~0 |old(~a21~0)|)) (.cse4 (= ~a20~0 |old(~a20~0)|)) (.cse5 (= ~a16~0 |old(~a16~0)|)) (.cse6 (= ~a8~0 |old(~a8~0)|))) (let ((.cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6))) (and (or .cse0 (not (= 0 |old(~a17~0)|))) (or (not (= |old(~a8~0)| 13)) (and .cse1 .cse2 .cse3 .cse4 .cse5 (= ~a8~0 13))) (or (not (<= 15 |old(~a8~0)|)) .cse0) (or (and .cse2 .cse3 .cse4 .cse5 .cse6 (= ~a7~0 0)) (not (= |old(~a7~0)| 0)))))) [2020-10-29 04:45:59,752 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,752 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,752 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,753 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-29 04:45:59,753 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-29 04:45:59,753 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-29 04:45:59,753 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-29 04:45:59,753 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-29 04:45:59,753 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-29 04:45:59,753 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-29 04:45:59,753 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-29 04:45:59,753 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-29 04:45:59,753 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-29 04:45:59,754 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-29 04:45:59,754 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,754 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,754 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,754 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,754 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-29 04:45:59,754 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,754 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,754 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-29 04:45:59,755 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-29 04:45:59,755 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-29 04:45:59,755 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-29 04:45:59,755 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-29 04:45:59,755 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-29 04:45:59,755 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-29 04:45:59,755 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-29 04:45:59,755 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-29 04:45:59,755 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-29 04:45:59,755 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-29 04:45:59,756 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-29 04:45:59,756 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,756 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,756 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,756 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,756 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,756 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-29 04:45:59,756 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:45:59,756 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-29 04:45:59,757 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-29 04:45:59,757 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-29 04:45:59,757 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-29 04:45:59,757 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-29 04:45:59,757 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-29 04:45:59,757 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-29 04:45:59,757 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-29 04:45:59,757 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-29 04:45:59,757 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-29 04:45:59,758 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-29 04:45:59,758 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-29 04:45:59,758 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-29 04:45:59,758 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-29 04:45:59,758 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:45:59,758 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (<= 15 ~a8~0)) [2020-10-29 04:45:59,758 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 04:45:59,758 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:45:59,759 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a7~0 0)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a7~0)| 0))) [2020-10-29 04:45:59,759 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-29 04:45:59,759 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (= ~a8~0 13) (not (= |old(~a7~0)| 0)) (<= 15 ~a8~0) (= ~a17~0 0) (= ~a7~0 0)) [2020-10-29 04:45:59,759 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-29 04:45:59,759 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-29 04:45:59,759 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (= ~a8~0 13) (not (= |old(~a7~0)| 0)) (= ~a17~0 0) (<= 15 ~a8~0) (= ~a7~0 0)) [2020-10-29 04:45:59,759 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-29 04:45:59,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:45:59 BoogieIcfgContainer [2020-10-29 04:45:59,788 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 04:45:59,791 INFO L168 Benchmark]: Toolchain (without parser) took 27693.65 ms. Allocated memory was 161.5 MB in the beginning and 511.7 MB in the end (delta: 350.2 MB). Free memory was 135.1 MB in the beginning and 439.2 MB in the end (delta: -304.2 MB). Peak memory consumption was 303.4 MB. Max. memory is 8.0 GB. [2020-10-29 04:45:59,792 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory is still 84.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 04:45:59,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 782.82 ms. Allocated memory is still 161.5 MB. Free memory was 134.5 MB in the beginning and 107.4 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-10-29 04:45:59,796 INFO L168 Benchmark]: Boogie Preprocessor took 120.78 ms. Allocated memory is still 161.5 MB. Free memory was 107.4 MB in the beginning and 102.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-29 04:45:59,803 INFO L168 Benchmark]: RCFGBuilder took 1419.20 ms. Allocated memory is still 161.5 MB. Free memory was 102.4 MB in the beginning and 135.4 MB in the end (delta: -33.0 MB). Peak memory consumption was 54.6 MB. Max. memory is 8.0 GB. [2020-10-29 04:45:59,804 INFO L168 Benchmark]: TraceAbstraction took 25354.18 ms. Allocated memory was 161.5 MB in the beginning and 511.7 MB in the end (delta: 350.2 MB). Free memory was 134.9 MB in the beginning and 439.2 MB in the end (delta: -304.3 MB). Peak memory consumption was 302.3 MB. Max. memory is 8.0 GB. [2020-10-29 04:45:59,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 125.8 MB. Free memory is still 84.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 782.82 ms. Allocated memory is still 161.5 MB. Free memory was 134.5 MB in the beginning and 107.4 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 120.78 ms. Allocated memory is still 161.5 MB. Free memory was 107.4 MB in the beginning and 102.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1419.20 ms. Allocated memory is still 161.5 MB. Free memory was 102.4 MB in the beginning and 135.4 MB in the end (delta: -33.0 MB). Peak memory consumption was 54.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 25354.18 ms. Allocated memory was 161.5 MB in the beginning and 511.7 MB in the end (delta: 350.2 MB). Free memory was 134.9 MB in the beginning and 439.2 MB in the end (delta: -304.3 MB). Peak memory consumption was 302.3 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: 585]: Loop Invariant Derived loop invariant: ((((!(15 <= \old(a8)) || a8 == 13) || !(\old(a7) == 0)) || a17 == 0) || 15 <= a8) || a7 == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 23.6s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 9.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 133 SDtfs, 1611 SDslu, 111 SDs, 0 SdLazy, 3769 SolverSat, 547 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1524occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 556 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 109 PreInvPairs, 149 NumberOfFragments, 281 HoareAnnotationTreeSize, 109 FomulaSimplifications, 16029 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2647 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 729 NumberOfCodeBlocks, 729 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 724 ConstructedInterpolants, 0 QuantifiedInterpolants, 394972 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 89/94 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...