/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_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:47:01,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:47:01,098 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:47:01,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:47:01,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:47:01,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:47:01,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:47:01,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:47:01,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:47:01,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:47:01,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:47:01,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:47:01,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:47:01,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:47:01,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:47:01,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:47:01,194 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:47:01,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:47:01,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:47:01,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:47:01,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:47:01,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:47:01,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:47:01,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:47:01,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:47:01,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:47:01,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:47:01,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:47:01,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:47:01,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:47:01,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:47:01,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:47:01,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:47:01,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:47:01,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:47:01,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:47:01,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:47:01,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:47:01,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:47:01,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:47:01,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:47:01,238 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 04:47:01,265 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:47:01,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:47:01,267 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:47:01,267 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:47:01,267 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:47:01,267 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:47:01,268 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:47:01,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:47:01,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:47:01,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:47:01,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:47:01,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:47:01,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:47:01,269 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:47:01,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:47:01,269 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:47:01,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:47:01,270 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:47:01,270 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:47:01,270 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:47:01,270 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:47:01,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:47:01,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:47:01,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:47:01,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:47:01,271 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:47:01,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:47:01,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:47:01,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:47:01,272 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:47:01,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:47:01,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:47:01,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:47:01,766 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:47:01,767 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:47:01,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label36.c [2020-10-29 04:47:01,849 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a4ed980d/5dbfb470c6804c51bf4720c8f52475af/FLAGa86a9f39b [2020-10-29 04:47:02,625 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:47:02,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label36.c [2020-10-29 04:47:02,656 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a4ed980d/5dbfb470c6804c51bf4720c8f52475af/FLAGa86a9f39b [2020-10-29 04:47:02,844 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5a4ed980d/5dbfb470c6804c51bf4720c8f52475af [2020-10-29 04:47:02,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:47:02,857 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:47:02,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:47:02,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:47:02,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:47:02,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:47:02" (1/1) ... [2020-10-29 04:47:02,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@712e92e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:02, skipping insertion in model container [2020-10-29 04:47:02,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:47:02" (1/1) ... [2020-10-29 04:47:02,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:47:02,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:47:03,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:47:03,437 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:47:03,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:47:03,681 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:47:03,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:03 WrapperNode [2020-10-29 04:47:03,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:47:03,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:47:03,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:47:03,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:47:03,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:03" (1/1) ... [2020-10-29 04:47:03,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:03" (1/1) ... [2020-10-29 04:47:03,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:03" (1/1) ... [2020-10-29 04:47:03,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:03" (1/1) ... [2020-10-29 04:47:03,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:03" (1/1) ... [2020-10-29 04:47:03,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:03" (1/1) ... [2020-10-29 04:47:03,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:03" (1/1) ... [2020-10-29 04:47:03,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:47:03,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:47:03,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:47:03,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:47:03,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:03" (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 04:47:03,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:47:03,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:47:03,950 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:47:03,951 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 04:47:03,951 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:47:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 04:47:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:47:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:47:03,952 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:47:03,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:47:03,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:47:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 04:47:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:47:03,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:47:03,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:47:03,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:47:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:47:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:47:03,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:47:05,256 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:47:05,257 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 04:47:05,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:47:05 BoogieIcfgContainer [2020-10-29 04:47:05,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:47:05,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:47:05,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:47:05,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:47:05,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:47:02" (1/3) ... [2020-10-29 04:47:05,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:47:05, skipping insertion in model container [2020-10-29 04:47:05,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:47:03" (2/3) ... [2020-10-29 04:47:05,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:47:05, skipping insertion in model container [2020-10-29 04:47:05,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:47:05" (3/3) ... [2020-10-29 04:47:05,268 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label36.c [2020-10-29 04:47:05,281 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:47:05,286 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:47:05,300 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:47:05,329 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:47:05,330 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:47:05,330 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:47:05,330 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:47:05,330 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:47:05,330 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:47:05,330 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:47:05,330 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:47:05,353 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-29 04:47:05,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-29 04:47:05,366 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:47:05,367 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] [2020-10-29 04:47:05,367 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:47:05,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:47:05,374 INFO L82 PathProgramCache]: Analyzing trace with hash 319536139, now seen corresponding path program 1 times [2020-10-29 04:47:05,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:47:05,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [441212576] [2020-10-29 04:47:05,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:47:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:05,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:06,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:07,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:07,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 04:47:07,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:47:07,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1872 [2020-10-29 04:47:07,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:07,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:07,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:47:07,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:47:07,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 04:47:07,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 04:47:07,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:47:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:07,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:07,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:07,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:47:07,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:07,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 04:47:07,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:07,864 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:07,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:47:07,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:07,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:47:07,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:07,930 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 04:47:07,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [441212576] [2020-10-29 04:47:07,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:47:07,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 04:47:07,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330757454] [2020-10-29 04:47:07,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:47:07,941 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:47:07,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:47:07,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:47:07,961 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2020-10-29 04:47:10,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:47:10,707 INFO L93 Difference]: Finished difference Result 703 states and 1239 transitions. [2020-10-29 04:47:10,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 04:47:10,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2020-10-29 04:47:10,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:47:10,728 INFO L225 Difference]: With dead ends: 703 [2020-10-29 04:47:10,728 INFO L226 Difference]: Without dead ends: 424 [2020-10-29 04:47:10,738 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:47:10,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-10-29 04:47:10,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 418. [2020-10-29 04:47:10,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-29 04:47:10,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 586 transitions. [2020-10-29 04:47:10,910 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 586 transitions. Word has length 109 [2020-10-29 04:47:10,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:47:10,911 INFO L481 AbstractCegarLoop]: Abstraction has 418 states and 586 transitions. [2020-10-29 04:47:10,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:47:10,911 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 586 transitions. [2020-10-29 04:47:10,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-29 04:47:10,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:47:10,920 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] [2020-10-29 04:47:10,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:47:10,921 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:47:10,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:47:10,921 INFO L82 PathProgramCache]: Analyzing trace with hash 424716369, now seen corresponding path program 1 times [2020-10-29 04:47:10,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:47:10,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761953215] [2020-10-29 04:47:10,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:47:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:10,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:11,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:11,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:12,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:12,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-29 04:47:12,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:47:12,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1329 [2020-10-29 04:47:12,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:12,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:12,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:47:12,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 04:47:12,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-29 04:47:12,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:47:12,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:47:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:12,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:12,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:12,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:47:12,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:12,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:47:12,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:12,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:12,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:47:12,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:12,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:47:12,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:12,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:47:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:12,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:12,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:12,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-29 04:47:12,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:12,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 04:47:12,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:12,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:47:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:12,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 04:47:12,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:12,849 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 04:47:12,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761953215] [2020-10-29 04:47:12,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:47:12,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:47:12,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574901833] [2020-10-29 04:47:12,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:47:12,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:47:12,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:47:12,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:47:12,857 INFO L87 Difference]: Start difference. First operand 418 states and 586 transitions. Second operand 5 states. [2020-10-29 04:47:13,094 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-10-29 04:47:14,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:47:14,253 INFO L93 Difference]: Finished difference Result 935 states and 1350 transitions. [2020-10-29 04:47:14,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:47:14,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2020-10-29 04:47:14,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:47:14,263 INFO L225 Difference]: With dead ends: 935 [2020-10-29 04:47:14,264 INFO L226 Difference]: Without dead ends: 424 [2020-10-29 04:47:14,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:47:14,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-10-29 04:47:14,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 418. [2020-10-29 04:47:14,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-29 04:47:14,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 526 transitions. [2020-10-29 04:47:14,296 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 526 transitions. Word has length 119 [2020-10-29 04:47:14,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:47:14,296 INFO L481 AbstractCegarLoop]: Abstraction has 418 states and 526 transitions. [2020-10-29 04:47:14,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:47:14,296 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 526 transitions. [2020-10-29 04:47:14,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-29 04:47:14,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:47:14,301 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 04:47:14,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:47:14,301 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:47:14,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:47:14,302 INFO L82 PathProgramCache]: Analyzing trace with hash 2140446453, now seen corresponding path program 1 times [2020-10-29 04:47:14,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:47:14,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [169695528] [2020-10-29 04:47:14,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:47:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:14,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:14,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:15,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:15,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:15,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-29 04:47:15,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:47:15,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1528 [2020-10-29 04:47:15,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:15,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:15,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:47:15,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 04:47:15,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 04:47:15,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:16,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:47:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:16,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:16,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:16,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:47:16,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:16,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 04:47:16,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:16,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:16,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:47:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:16,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:47:16,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:16,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:47:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:16,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:16,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:16,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-29 04:47:16,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:16,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 04:47:16,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:16,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:16,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:47:16,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:16,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 04:47:16,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:47:16,186 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:47:16,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [169695528] [2020-10-29 04:47:16,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:47:16,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:47:16,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193651523] [2020-10-29 04:47:16,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:47:16,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:47:16,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:47:16,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:47:16,193 INFO L87 Difference]: Start difference. First operand 418 states and 526 transitions. Second operand 5 states. [2020-10-29 04:47:17,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:47:17,471 INFO L93 Difference]: Finished difference Result 1247 states and 1606 transitions. [2020-10-29 04:47:17,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:47:17,472 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-10-29 04:47:17,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:47:17,478 INFO L225 Difference]: With dead ends: 1247 [2020-10-29 04:47:17,479 INFO L226 Difference]: Without dead ends: 835 [2020-10-29 04:47:17,480 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 04:47:17,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2020-10-29 04:47:17,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 694. [2020-10-29 04:47:17,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2020-10-29 04:47:17,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 860 transitions. [2020-10-29 04:47:17,518 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 860 transitions. Word has length 121 [2020-10-29 04:47:17,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:47:17,519 INFO L481 AbstractCegarLoop]: Abstraction has 694 states and 860 transitions. [2020-10-29 04:47:17,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:47:17,519 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 860 transitions. [2020-10-29 04:47:17,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-29 04:47:17,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:47:17,524 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] [2020-10-29 04:47:17,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:47:17,524 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:47:17,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:47:17,525 INFO L82 PathProgramCache]: Analyzing trace with hash -229446922, now seen corresponding path program 1 times [2020-10-29 04:47:17,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:47:17,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [120866935] [2020-10-29 04:47:17,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:47:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:17,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:17,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:19,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:21,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:21,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 04:47:21,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:47:21,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3662 [2020-10-29 04:47:21,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:21,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:21,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:47:21,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-29 04:47:21,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-29 04:47:21,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:47:21,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:47:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:21,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:21,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:21,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:47:21,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:21,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:47:21,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:21,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:21,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:47:21,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:21,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:47:21,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:47:21,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:47:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:21,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:21,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:21,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 04:47:21,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:21,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 04:47:21,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:21,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:21,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:47:21,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:21,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 04:47:21,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 04:47:21,441 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 04:47:21,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [120866935] [2020-10-29 04:47:21,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:47:21,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:47:21,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987692048] [2020-10-29 04:47:21,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:47:21,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:47:21,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:47:21,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:47:21,455 INFO L87 Difference]: Start difference. First operand 694 states and 860 transitions. Second operand 5 states. [2020-10-29 04:47:22,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:47:22,737 INFO L93 Difference]: Finished difference Result 2071 states and 2601 transitions. [2020-10-29 04:47:22,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:47:22,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-10-29 04:47:22,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:47:22,746 INFO L225 Difference]: With dead ends: 2071 [2020-10-29 04:47:22,746 INFO L226 Difference]: Without dead ends: 1383 [2020-10-29 04:47:22,749 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 04:47:22,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2020-10-29 04:47:22,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1109. [2020-10-29 04:47:22,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1109 states. [2020-10-29 04:47:22,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1346 transitions. [2020-10-29 04:47:22,813 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1346 transitions. Word has length 124 [2020-10-29 04:47:22,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:47:22,814 INFO L481 AbstractCegarLoop]: Abstraction has 1109 states and 1346 transitions. [2020-10-29 04:47:22,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:47:22,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1346 transitions. [2020-10-29 04:47:22,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-29 04:47:22,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:47:22,819 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:47:22,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:47:22,819 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:47:22,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:47:22,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1624238616, now seen corresponding path program 1 times [2020-10-29 04:47:22,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:47:22,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207212757] [2020-10-29 04:47:22,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:47:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:22,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:22,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:24,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:24,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:24,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-10-29 04:47:24,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:47:24,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2026 [2020-10-29 04:47:24,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:24,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:24,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:47:24,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 99 [2020-10-29 04:47:24,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 04:47:24,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:47:25,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:47:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:25,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:25,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:25,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:47:25,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:25,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:47:25,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:25,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:25,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:47:25,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:25,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:47:25,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:47:25,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:47:25,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:25,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:25,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:25,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 04:47:25,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:25,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:47:25,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:25,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:25,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:47:25,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:25,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:47:25,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:47:25,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 04:47:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:47:25,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:47:25,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:47:25,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 04:47:25,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:47:25,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-29 04:47:25,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:47:25,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:47:25,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:47:25,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:47:25,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-29 04:47:25,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 04:47:25,754 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-29 04:47:25,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207212757] [2020-10-29 04:47:25,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:47:25,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:47:25,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818370943] [2020-10-29 04:47:25,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:47:25,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:47:25,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:47:25,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:47:25,757 INFO L87 Difference]: Start difference. First operand 1109 states and 1346 transitions. Second operand 5 states. [2020-10-29 04:47:26,496 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-29 04:47:27,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:47:27,001 INFO L93 Difference]: Finished difference Result 2153 states and 2634 transitions. [2020-10-29 04:47:27,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:47:27,002 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 196 [2020-10-29 04:47:27,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:47:27,003 INFO L225 Difference]: With dead ends: 2153 [2020-10-29 04:47:27,003 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 04:47:27,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:47:27,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 04:47:27,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 04:47:27,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 04:47:27,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 04:47:27,010 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 196 [2020-10-29 04:47:27,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:47:27,010 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 04:47:27,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:47:27,010 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 04:47:27,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 04:47:27,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:47:27,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 04:47:28,026 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 61 [2020-10-29 04:47:28,331 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-29 04:47:28,331 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-29 04:47:28,331 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-29 04:47:28,331 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-29 04:47:28,332 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:47:28,332 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 04:47:28,332 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:47:28,332 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,333 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,333 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,333 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,333 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,335 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,335 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-29 04:47:28,335 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-29 04:47:28,336 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-29 04:47:28,336 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-29 04:47:28,336 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-29 04:47:28,336 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-29 04:47:28,336 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-29 04:47:28,336 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-29 04:47:28,336 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-29 04:47:28,336 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-29 04:47:28,336 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-29 04:47:28,337 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-29 04:47:28,337 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,337 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,337 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,340 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,340 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,340 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,340 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-29 04:47:28,341 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-29 04:47:28,341 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-29 04:47:28,341 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-29 04:47:28,341 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-29 04:47:28,341 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-29 04:47:28,341 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-29 04:47:28,341 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-29 04:47:28,341 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-29 04:47:28,341 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-29 04:47:28,342 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,342 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,342 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,342 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,342 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,342 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,342 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-29 04:47:28,342 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-29 04:47:28,343 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-29 04:47:28,343 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-29 04:47:28,343 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-29 04:47:28,343 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-29 04:47:28,343 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-29 04:47:28,343 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-29 04:47:28,343 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-29 04:47:28,343 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-29 04:47:28,343 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-29 04:47:28,343 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-29 04:47:28,344 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-29 04:47:28,344 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-29 04:47:28,344 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-29 04:47:28,344 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,344 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,344 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,344 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,344 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,344 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-29 04:47:28,345 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-29 04:47:28,345 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-29 04:47:28,345 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-29 04:47:28,345 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-29 04:47:28,345 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-29 04:47:28,346 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-29 04:47:28,346 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-29 04:47:28,346 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-29 04:47:28,346 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,346 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,346 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,346 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,346 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,346 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-29 04:47:28,348 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-29 04:47:28,348 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-29 04:47:28,348 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-29 04:47:28,348 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-29 04:47:28,349 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-29 04:47:28,349 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-29 04:47:28,349 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-29 04:47:28,349 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-29 04:47:28,349 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-29 04:47:28,349 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-29 04:47:28,349 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-29 04:47:28,349 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-29 04:47:28,349 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,349 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,350 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,350 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,350 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,350 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-29 04:47:28,352 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-29 04:47:28,352 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-29 04:47:28,353 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,353 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,353 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-29 04:47:28,353 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-29 04:47:28,354 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-29 04:47:28,354 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-29 04:47:28,355 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-29 04:47:28,355 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-29 04:47:28,355 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,355 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,355 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,355 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,355 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-29 04:47:28,355 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,355 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-29 04:47:28,356 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-29 04:47:28,356 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-29 04:47:28,356 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-29 04:47:28,356 INFO L270 CegarLoopResult]: At program point L484(line 484) the Hoare annotation is: (and (= |old(~a8~0)| 13) (not (= |old(~a7~0)| 1)) (or (not (<= |old(~a16~0)| 6)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a21~0)|)) (not (<= 1 |old(~a17~0)|)) (not (<= |old(~a17~0)| 1)) (not (<= 6 |old(~a16~0)|)) (not (<= 1 |old(~a20~0)|)) (not (= ~a12~0 8)) (not (<= |old(~a20~0)| 1))) (not (= 4 |old(~a16~0)|))) [2020-10-29 04:47:28,356 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-29 04:47:28,356 INFO L274 CegarLoopResult]: For program point L484-1(line 484) no Hoare annotation was computed. [2020-10-29 04:47:28,356 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-29 04:47:28,357 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-29 04:47:28,357 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-29 04:47:28,357 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-29 04:47:28,357 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-29 04:47:28,357 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-29 04:47:28,357 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-29 04:47:28,357 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,357 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,357 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,357 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,357 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,358 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-29 04:47:28,358 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-29 04:47:28,358 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-29 04:47:28,358 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-29 04:47:28,358 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-29 04:47:28,358 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-29 04:47:28,358 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-29 04:47:28,358 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-29 04:47:28,358 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,358 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,358 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse0 (= ~a7~0 |old(~a7~0)|)) (.cse1 (= ~a17~0 |old(~a17~0)|)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse2 (= ~a20~0 |old(~a20~0)|)) (.cse3 (= ~a16~0 |old(~a16~0)|)) (.cse4 (= ~a8~0 |old(~a8~0)|))) (let ((.cse5 (and .cse0 .cse1 .cse6 .cse2 .cse3 .cse4))) (and (or (not (<= |old(~a16~0)| 6)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a21~0)| 1)) (not (<= 1 |old(~a17~0)|)) (not (<= 1 |old(~a21~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= ~a21~0 1) (<= 1 ~a21~0)) (not (<= |old(~a17~0)| 1)) (not (<= 6 |old(~a16~0)|)) (not (<= 1 |old(~a20~0)|)) (not (= ~a12~0 8)) (not (<= |old(~a20~0)| 1))) (or (not (= |old(~a7~0)| 1)) .cse5) (or (and .cse0 .cse1 .cse6 .cse2 .cse4 (= ~a16~0 4)) (not (= 4 |old(~a16~0)|))) (or (= |old(~a8~0)| 13) .cse5)))) [2020-10-29 04:47:28,359 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,359 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,359 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,359 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-29 04:47:28,359 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-29 04:47:28,359 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-29 04:47:28,359 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-29 04:47:28,359 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-29 04:47:28,359 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-29 04:47:28,359 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-29 04:47:28,359 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-29 04:47:28,359 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-29 04:47:28,359 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-29 04:47:28,359 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-29 04:47:28,360 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,360 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,360 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,360 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,360 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-29 04:47:28,360 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,360 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,360 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-29 04:47:28,360 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-29 04:47:28,360 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-29 04:47:28,360 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-29 04:47:28,360 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-29 04:47:28,360 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-29 04:47:28,360 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-29 04:47:28,361 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-29 04:47:28,361 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-29 04:47:28,361 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-29 04:47:28,361 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-29 04:47:28,361 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-29 04:47:28,361 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,361 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,361 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,362 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,362 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,362 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-29 04:47:28,362 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-29 04:47:28,362 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-29 04:47:28,362 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-29 04:47:28,362 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-29 04:47:28,362 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-29 04:47:28,362 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-29 04:47:28,363 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-29 04:47:28,363 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-29 04:47:28,363 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-29 04:47:28,363 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-29 04:47:28,363 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-29 04:47:28,363 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-29 04:47:28,363 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-29 04:47:28,363 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-29 04:47:28,363 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-29 04:47:28,364 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 04:47:28,364 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (<= 15 ~a8~0) [2020-10-29 04:47:28,364 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 04:47:28,364 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 04:47:28,364 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~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)|))) [2020-10-29 04:47:28,364 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-29 04:47:28,364 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (or (and (<= ~a16~0 6) (<= 1 ~a20~0) (<= 1 ~a17~0) (<= 6 ~a16~0) (= ~a12~0 8) (<= ~a7~0 0) (<= ~a21~0 1) (<= ~a20~0 1) (<= ~a17~0 1) (<= 1 ~a21~0)) (= ~a7~0 1) (not (<= 15 |old(~a8~0)|)) (not (= ~a8~0 13)) (= ~a16~0 4)) [2020-10-29 04:47:28,364 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-29 04:47:28,365 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-29 04:47:28,365 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (or (and (<= ~a16~0 6) (<= 1 ~a20~0) (<= 1 ~a17~0) (<= 6 ~a16~0) (= ~a12~0 8) (<= ~a7~0 0) (<= ~a21~0 1) (<= ~a20~0 1) (<= ~a17~0 1) (<= 1 ~a21~0)) (= ~a7~0 1) (not (<= 15 |old(~a8~0)|)) (not (= ~a8~0 13)) (= ~a16~0 4)) [2020-10-29 04:47:28,365 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-29 04:47:28,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:47:28 BoogieIcfgContainer [2020-10-29 04:47:28,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 04:47:28,386 INFO L168 Benchmark]: Toolchain (without parser) took 25534.56 ms. Allocated memory was 159.4 MB in the beginning and 483.4 MB in the end (delta: 324.0 MB). Free memory was 133.2 MB in the beginning and 302.2 MB in the end (delta: -169.0 MB). Peak memory consumption was 287.9 MB. Max. memory is 8.0 GB. [2020-10-29 04:47:28,387 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 125.8 MB. Free memory was 100.5 MB in the beginning and 100.4 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 04:47:28,388 INFO L168 Benchmark]: CACSL2BoogieTranslator took 819.43 ms. Allocated memory is still 159.4 MB. Free memory was 132.5 MB in the beginning and 140.4 MB in the end (delta: -7.9 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. [2020-10-29 04:47:28,389 INFO L168 Benchmark]: Boogie Preprocessor took 166.64 ms. Allocated memory is still 159.4 MB. Free memory was 140.4 MB in the beginning and 135.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-29 04:47:28,390 INFO L168 Benchmark]: RCFGBuilder took 1404.34 ms. Allocated memory is still 159.4 MB. Free memory was 135.1 MB in the beginning and 125.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 54.6 MB. Max. memory is 8.0 GB. [2020-10-29 04:47:28,391 INFO L168 Benchmark]: TraceAbstraction took 23123.35 ms. Allocated memory was 159.4 MB in the beginning and 483.4 MB in the end (delta: 324.0 MB). Free memory was 124.9 MB in the beginning and 302.2 MB in the end (delta: -177.2 MB). Peak memory consumption was 278.5 MB. Max. memory is 8.0 GB. [2020-10-29 04:47:28,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 125.8 MB. Free memory was 100.5 MB in the beginning and 100.4 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 819.43 ms. Allocated memory is still 159.4 MB. Free memory was 132.5 MB in the beginning and 140.4 MB in the end (delta: -7.9 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 166.64 ms. Allocated memory is still 159.4 MB. Free memory was 140.4 MB in the beginning and 135.1 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1404.34 ms. Allocated memory is still 159.4 MB. Free memory was 135.1 MB in the beginning and 125.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 54.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 23123.35 ms. Allocated memory was 159.4 MB in the beginning and 483.4 MB in the end (delta: 324.0 MB). Free memory was 124.9 MB in the beginning and 302.2 MB in the end (delta: -177.2 MB). Peak memory consumption was 278.5 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: ((((((((((((a16 <= 6 && 1 <= a20) && 1 <= a17) && 6 <= a16) && a12 == 8) && a7 <= 0) && a21 <= 1) && a20 <= 1) && a17 <= 1) && 1 <= a21) || a7 == 1) || !(15 <= \old(a8))) || !(a8 == 13)) || a16 == 4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.6s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 131 SDtfs, 1179 SDslu, 113 SDs, 0 SdLazy, 3358 SolverSat, 440 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1109occurred 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 427 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 71 PreInvPairs, 91 NumberOfFragments, 397 HoareAnnotationTreeSize, 71 FomulaSimplifications, 8739 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 9 FomulaSimplificationsInter, 1232 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 12.2s InterpolantComputationTime, 669 NumberOfCodeBlocks, 669 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 664 ConstructedInterpolants, 0 QuantifiedInterpolants, 1034530 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 119/124 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...