/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:32:32,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:32:32,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:32:32,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:32:32,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:32:32,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:32:32,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:32:32,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:32:32,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:32:32,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:32:32,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:32:32,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:32:32,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:32:32,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:32:32,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:32:32,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:32:32,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:32:32,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:32:32,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:32:32,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:32:32,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:32:32,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:32:32,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:32:32,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:32:32,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:32:32,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:32:32,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:32:32,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:32:32,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:32:32,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:32:32,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:32:32,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:32:32,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:32:32,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:32:32,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:32:32,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:32:32,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:32:32,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:32:32,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:32:32,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:32:32,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:32:32,940 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 20:32:32,972 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:32:32,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:32:32,974 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:32:32,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:32:32,975 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:32:32,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:32:32,975 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:32:32,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:32:32,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:32:32,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:32:32,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:32:32,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:32:32,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:32:32,978 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:32:32,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:32:32,979 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:32:32,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:32:32,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:32:32,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:32:32,980 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:32:32,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:32:32,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:32:32,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:32:32,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:32:32,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:32:32,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:32:32,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:32:32,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:32:32,982 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:32:32,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:32:33,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:32:33,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:32:33,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:32:33,523 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:32:33,524 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:32:33,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label19.c [2020-10-26 20:32:33,608 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a6ed6d8a/80bb6ecaa32d4df3928e94190f9de161/FLAG98d7d00d1 [2020-10-26 20:32:34,387 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:32:34,388 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label19.c [2020-10-26 20:32:34,402 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a6ed6d8a/80bb6ecaa32d4df3928e94190f9de161/FLAG98d7d00d1 [2020-10-26 20:32:34,582 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8a6ed6d8a/80bb6ecaa32d4df3928e94190f9de161 [2020-10-26 20:32:34,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:32:34,594 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:32:34,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:32:34,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:32:34,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:32:34,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:32:34" (1/1) ... [2020-10-26 20:32:34,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea5aa11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:34, skipping insertion in model container [2020-10-26 20:32:34,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:32:34" (1/1) ... [2020-10-26 20:32:34,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:32:34,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:32:35,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:32:35,153 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:32:35,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:32:35,384 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:32:35,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:35 WrapperNode [2020-10-26 20:32:35,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:32:35,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:32:35,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:32:35,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:32:35,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:35" (1/1) ... [2020-10-26 20:32:35,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:35" (1/1) ... [2020-10-26 20:32:35,422 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:35" (1/1) ... [2020-10-26 20:32:35,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:35" (1/1) ... [2020-10-26 20:32:35,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:35" (1/1) ... [2020-10-26 20:32:35,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:35" (1/1) ... [2020-10-26 20:32:35,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:35" (1/1) ... [2020-10-26 20:32:35,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:32:35,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:32:35,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:32:35,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:32:35,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:32:35,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:32:35,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:32:35,601 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:32:35,602 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:32:35,602 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:32:35,602 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:32:35,602 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:32:35,602 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:32:35,602 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:32:35,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:32:35,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:32:35,603 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:32:35,603 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:32:35,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:32:35,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:32:35,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:32:35,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:32:35,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:32:35,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:32:36,901 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:32:36,901 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:32:36,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:32:36 BoogieIcfgContainer [2020-10-26 20:32:36,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:32:36,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:32:36,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:32:36,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:32:36,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:32:34" (1/3) ... [2020-10-26 20:32:36,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da6de10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:32:36, skipping insertion in model container [2020-10-26 20:32:36,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:32:35" (2/3) ... [2020-10-26 20:32:36,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da6de10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:32:36, skipping insertion in model container [2020-10-26 20:32:36,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:32:36" (3/3) ... [2020-10-26 20:32:36,915 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label19.c [2020-10-26 20:32:36,926 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:32:36,931 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:32:36,946 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:32:36,976 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:32:36,976 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:32:36,976 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:32:36,976 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:32:36,976 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:32:36,976 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:32:36,977 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:32:36,977 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:32:37,001 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:32:37,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-26 20:32:37,012 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:37,013 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] [2020-10-26 20:32:37,014 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:37,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:37,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1535053259, now seen corresponding path program 1 times [2020-10-26 20:32:37,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:37,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1409520648] [2020-10-26 20:32:37,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:37,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:37,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:39,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:39,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-26 20:32:39,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:39,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1880 [2020-10-26 20:32:39,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:39,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-26 20:32:39,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:39,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-26 20:32:39,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:32:39,850 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2020-10-26 20:32:40,017 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 42 [2020-10-26 20:32:40,187 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-10-26 20:32:40,357 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 35 [2020-10-26 20:32:40,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:40,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:40,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:40,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:40,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:40,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 20:32:40,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:40,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:40,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:40,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:40,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:32:40,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:32:40,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1409520648] [2020-10-26 20:32:40,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:32:40,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 20:32:40,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134596992] [2020-10-26 20:32:41,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 20:32:41,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:41,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 20:32:41,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:32:41,026 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 12 states. [2020-10-26 20:32:41,258 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-26 20:32:41,513 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-26 20:32:41,741 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-26 20:32:42,011 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2020-10-26 20:32:42,538 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 141 [2020-10-26 20:32:43,059 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 138 [2020-10-26 20:32:43,822 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 135 [2020-10-26 20:32:44,689 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 132 [2020-10-26 20:32:45,296 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 127 [2020-10-26 20:32:46,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:46,625 INFO L93 Difference]: Finished difference Result 479 states and 799 transitions. [2020-10-26 20:32:46,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-26 20:32:46,627 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 93 [2020-10-26 20:32:46,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:46,640 INFO L225 Difference]: With dead ends: 479 [2020-10-26 20:32:46,641 INFO L226 Difference]: Without dead ends: 206 [2020-10-26 20:32:46,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2020-10-26 20:32:46,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-10-26 20:32:46,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2020-10-26 20:32:46,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-10-26 20:32:46,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2020-10-26 20:32:46,736 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 278 transitions. Word has length 93 [2020-10-26 20:32:46,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:46,736 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 278 transitions. [2020-10-26 20:32:46,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 20:32:46,737 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 278 transitions. [2020-10-26 20:32:46,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-26 20:32:46,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:46,744 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-26 20:32:46,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:32:46,745 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:46,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:46,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1156657005, now seen corresponding path program 1 times [2020-10-26 20:32:46,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:46,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369966546] [2020-10-26 20:32:46,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:46,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:46,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:47,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:48,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:48,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-26 20:32:48,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:32:48,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1797 [2020-10-26 20:32:48,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:48,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:48,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:48,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-26 20:32:48,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:32:48,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:48,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:48,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:48,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:48,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:48,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-26 20:32:48,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:48,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:48,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:48,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:48,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 20:32:48,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:48,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:48,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:48,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:48,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:48,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:32:48,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:48,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:48,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:48,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:32:48,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:48,959 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:32:48,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1369966546] [2020-10-26 20:32:48,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:48,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:32:48,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504740209] [2020-10-26 20:32:48,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:32:48,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:48,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:32:48,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:32:48,964 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. Second operand 6 states. [2020-10-26 20:32:50,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:50,520 INFO L93 Difference]: Finished difference Result 491 states and 703 transitions. [2020-10-26 20:32:50,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:32:50,521 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2020-10-26 20:32:50,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:50,527 INFO L225 Difference]: With dead ends: 491 [2020-10-26 20:32:50,528 INFO L226 Difference]: Without dead ends: 351 [2020-10-26 20:32:50,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:32:50,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-10-26 20:32:50,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 345. [2020-10-26 20:32:50,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-10-26 20:32:50,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 467 transitions. [2020-10-26 20:32:50,572 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 467 transitions. Word has length 101 [2020-10-26 20:32:50,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:50,572 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 467 transitions. [2020-10-26 20:32:50,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:32:50,573 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 467 transitions. [2020-10-26 20:32:50,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-26 20:32:50,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:50,576 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-26 20:32:50,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:32:50,577 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:50,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:50,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1157537042, now seen corresponding path program 1 times [2020-10-26 20:32:50,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:50,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [385549180] [2020-10-26 20:32:50,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:50,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:50,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:51,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:51,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-26 20:32:51,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:51,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 730 [2020-10-26 20:32:51,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:51,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:32:51,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:32:51,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-26 20:32:51,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:51,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:51,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:51,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:51,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:51,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:51,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:32:51,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:51,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:51,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:51,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:32:51,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:51,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:51,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:51,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:51,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:51,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:51,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:51,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:32:51,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:51,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:51,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:51,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:32:51,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:32:51,704 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:32:51,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [385549180] [2020-10-26 20:32:51,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:51,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:32:51,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912211585] [2020-10-26 20:32:51,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:32:51,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:51,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:32:51,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:32:51,711 INFO L87 Difference]: Start difference. First operand 345 states and 467 transitions. Second operand 6 states. [2020-10-26 20:32:53,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:53,364 INFO L93 Difference]: Finished difference Result 908 states and 1277 transitions. [2020-10-26 20:32:53,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:32:53,366 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2020-10-26 20:32:53,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:53,371 INFO L225 Difference]: With dead ends: 908 [2020-10-26 20:32:53,371 INFO L226 Difference]: Without dead ends: 629 [2020-10-26 20:32:53,373 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:53,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2020-10-26 20:32:53,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 625. [2020-10-26 20:32:53,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2020-10-26 20:32:53,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 825 transitions. [2020-10-26 20:32:53,422 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 825 transitions. Word has length 104 [2020-10-26 20:32:53,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:53,423 INFO L481 AbstractCegarLoop]: Abstraction has 625 states and 825 transitions. [2020-10-26 20:32:53,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:32:53,423 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 825 transitions. [2020-10-26 20:32:53,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-26 20:32:53,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:53,427 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-10-26 20:32:53,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:32:53,428 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:53,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:53,429 INFO L82 PathProgramCache]: Analyzing trace with hash 11121040, now seen corresponding path program 1 times [2020-10-26 20:32:53,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:53,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382638752] [2020-10-26 20:32:53,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:53,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:53,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:53,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:54,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:55,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:56,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:56,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-26 20:32:56,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:32:56,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2602 [2020-10-26 20:32:56,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:56,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:32:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-26 20:32:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-26 20:32:56,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:56,306 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-26 20:32:56,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:32:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:56,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:56,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:56,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:32:56,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:56,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:32:56,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:56,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:32:56,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:56,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:32:56,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:56,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:32:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:56,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:56,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:56,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:32:56,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:32:56,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:32:56,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:56,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:32:56,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:32:56,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-26 20:32:56,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:32:56,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:32:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:56,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:56,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:56,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:32:56,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:32:56,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:32:56,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:32:56,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:32:56,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:32:56,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:32:56,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:32:56,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:32:56,502 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-26 20:32:56,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382638752] [2020-10-26 20:32:56,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:32:56,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:32:56,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524716599] [2020-10-26 20:32:56,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:32:56,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:32:56,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:32:56,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:32:56,510 INFO L87 Difference]: Start difference. First operand 625 states and 825 transitions. Second operand 7 states. [2020-10-26 20:32:56,659 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-26 20:32:59,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:32:59,009 INFO L93 Difference]: Finished difference Result 2288 states and 3142 transitions. [2020-10-26 20:32:59,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 20:32:59,009 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2020-10-26 20:32:59,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:32:59,023 INFO L225 Difference]: With dead ends: 2288 [2020-10-26 20:32:59,023 INFO L226 Difference]: Without dead ends: 1729 [2020-10-26 20:32:59,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:32:59,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2020-10-26 20:32:59,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1046. [2020-10-26 20:32:59,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1046 states. [2020-10-26 20:32:59,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1376 transitions. [2020-10-26 20:32:59,139 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1376 transitions. Word has length 112 [2020-10-26 20:32:59,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:32:59,141 INFO L481 AbstractCegarLoop]: Abstraction has 1046 states and 1376 transitions. [2020-10-26 20:32:59,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:32:59,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1376 transitions. [2020-10-26 20:32:59,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-26 20:32:59,153 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:32:59,154 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:32:59,154 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:32:59,154 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:32:59,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:32:59,155 INFO L82 PathProgramCache]: Analyzing trace with hash 413689039, now seen corresponding path program 1 times [2020-10-26 20:32:59,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:32:59,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662811535] [2020-10-26 20:32:59,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:32:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:32:59,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:59,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:32:59,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:01,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:01,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:01,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-26 20:33:01,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:33:01,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2732 [2020-10-26 20:33:01,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:01,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:01,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:01,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 20:33:01,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:02,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:02,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:02,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:02,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:02,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:02,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-26 20:33:02,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:02,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:02,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-26 20:33:02,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:02,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:02,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:02,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:02,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:33:02,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:02,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:33:02,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:02,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:33:02,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:02,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:33:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:02,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:02,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:02,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-26 20:33:02,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:02,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-26 20:33:02,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:02,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:02,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:02,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-26 20:33:02,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:02,365 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 51 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:33:02,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662811535] [2020-10-26 20:33:02,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:02,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:02,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131679107] [2020-10-26 20:33:02,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:33:02,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:02,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:33:02,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:33:02,368 INFO L87 Difference]: Start difference. First operand 1046 states and 1376 transitions. Second operand 8 states. [2020-10-26 20:33:03,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:03,948 INFO L93 Difference]: Finished difference Result 2209 states and 2993 transitions. [2020-10-26 20:33:03,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:33:03,949 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 149 [2020-10-26 20:33:03,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:03,958 INFO L225 Difference]: With dead ends: 2209 [2020-10-26 20:33:03,958 INFO L226 Difference]: Without dead ends: 1229 [2020-10-26 20:33:03,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:33:03,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2020-10-26 20:33:04,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1189. [2020-10-26 20:33:04,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1189 states. [2020-10-26 20:33:04,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1466 transitions. [2020-10-26 20:33:04,029 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1466 transitions. Word has length 149 [2020-10-26 20:33:04,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:04,029 INFO L481 AbstractCegarLoop]: Abstraction has 1189 states and 1466 transitions. [2020-10-26 20:33:04,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:33:04,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1466 transitions. [2020-10-26 20:33:04,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-26 20:33:04,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:04,034 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:04,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:33:04,035 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:04,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:04,035 INFO L82 PathProgramCache]: Analyzing trace with hash -376468311, now seen corresponding path program 1 times [2020-10-26 20:33:04,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:04,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1715518071] [2020-10-26 20:33:04,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:04,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:04,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:04,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:05,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:07,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:09,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:09,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-26 20:33:09,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:33:09,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-26 20:33:09,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:09,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-26 20:33:09,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:33:09,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:09,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:09,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:09,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:09,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:09,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:09,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:33:09,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:09,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:09,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:09,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:09,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:09,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:09,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:09,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:09,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:33:09,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:09,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:33:09,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:09,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:09,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:09,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-26 20:33:09,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:09,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:33:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:09,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:09,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:09,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:09,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:09,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:33:09,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:09,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:09,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:09,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:09,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:09,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-26 20:33:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:09,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:09,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:09,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-26 20:33:09,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:09,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-26 20:33:09,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:09,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:09,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-26 20:33:09,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:09,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:09,511 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 64 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:33:09,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1715518071] [2020-10-26 20:33:09,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:09,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:33:09,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909951239] [2020-10-26 20:33:09,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:33:09,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:09,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:33:09,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:33:09,515 INFO L87 Difference]: Start difference. First operand 1189 states and 1466 transitions. Second operand 8 states. [2020-10-26 20:33:11,083 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-26 20:33:11,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:11,547 INFO L93 Difference]: Finished difference Result 2765 states and 3454 transitions. [2020-10-26 20:33:11,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-26 20:33:11,548 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 161 [2020-10-26 20:33:11,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:11,557 INFO L225 Difference]: With dead ends: 2765 [2020-10-26 20:33:11,557 INFO L226 Difference]: Without dead ends: 1499 [2020-10-26 20:33:11,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-10-26 20:33:11,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2020-10-26 20:33:11,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1475. [2020-10-26 20:33:11,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1475 states. [2020-10-26 20:33:11,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 1793 transitions. [2020-10-26 20:33:11,617 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 1793 transitions. Word has length 161 [2020-10-26 20:33:11,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:11,618 INFO L481 AbstractCegarLoop]: Abstraction has 1475 states and 1793 transitions. [2020-10-26 20:33:11,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:33:11,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 1793 transitions. [2020-10-26 20:33:11,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-10-26 20:33:11,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:11,623 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:11,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:33:11,624 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:11,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:11,625 INFO L82 PathProgramCache]: Analyzing trace with hash -874569558, now seen corresponding path program 1 times [2020-10-26 20:33:11,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:11,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714453584] [2020-10-26 20:33:11,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:11,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:11,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:11,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:12,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:15,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:16,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:16,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-26 20:33:16,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:33:16,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-26 20:33:16,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:16,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:33:16,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:33:16,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:33:16,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:16,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:16,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:16,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:16,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:16,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:16,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:33:16,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:16,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:16,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:16,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:33:16,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:16,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:16,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:16,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:16,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:16,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:16,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:33:16,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:33:16,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:33:16,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:16,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:16,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:16,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:33:16,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:16,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:33:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:16,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:16,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:16,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:16,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:16,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-26 20:33:16,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:16,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:16,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:16,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:16,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:16,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-26 20:33:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:16,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:16,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:16,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-26 20:33:16,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:16,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-26 20:33:16,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-26 20:33:16,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:16,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:17,065 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 67 proven. 18 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-26 20:33:17,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714453584] [2020-10-26 20:33:17,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:17,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:33:17,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857101529] [2020-10-26 20:33:17,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:33:17,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:17,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:33:17,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:33:17,067 INFO L87 Difference]: Start difference. First operand 1475 states and 1793 transitions. Second operand 7 states. [2020-10-26 20:33:19,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:19,006 INFO L93 Difference]: Finished difference Result 3186 states and 3862 transitions. [2020-10-26 20:33:19,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:33:19,007 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 164 [2020-10-26 20:33:19,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:19,016 INFO L225 Difference]: With dead ends: 3186 [2020-10-26 20:33:19,016 INFO L226 Difference]: Without dead ends: 1487 [2020-10-26 20:33:19,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:33:19,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2020-10-26 20:33:19,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1469. [2020-10-26 20:33:19,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1469 states. [2020-10-26 20:33:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 1648 transitions. [2020-10-26 20:33:19,067 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 1648 transitions. Word has length 164 [2020-10-26 20:33:19,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:19,067 INFO L481 AbstractCegarLoop]: Abstraction has 1469 states and 1648 transitions. [2020-10-26 20:33:19,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:33:19,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 1648 transitions. [2020-10-26 20:33:19,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-26 20:33:19,072 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:33:19,072 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:33:19,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:33:19,073 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:33:19,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:33:19,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1267297492, now seen corresponding path program 1 times [2020-10-26 20:33:19,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:33:19,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508865493] [2020-10-26 20:33:19,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:33:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:19,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:19,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:19,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:20,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:20,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:23,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:23,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-26 20:33:23,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:33:23,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4225 [2020-10-26 20:33:23,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:23,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:23,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:33:23,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:33:23,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:23,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:33:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:23,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:23,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:23,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:33:23,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:23,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:33:23,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:23,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:23,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:23,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:33:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:23,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:23,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:23,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:33:23,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:23,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-26 20:33:23,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:23,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:33:23,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:33:23,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:33:23,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:23,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:33:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:23,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:23,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:23,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:33:23,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:23,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:33:23,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:23,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:33:23,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:33:23,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:33:23,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:23,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:33:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:23,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:23,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:23,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:33:23,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:23,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:33:23,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:23,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:23,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:33:23,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:23,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:23,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-26 20:33:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:33:23,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:33:23,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:33:23,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-26 20:33:23,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:33:23,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-26 20:33:23,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:33:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:33:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-26 20:33:23,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:33:23,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:33:23,660 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 82 proven. 22 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-26 20:33:23,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508865493] [2020-10-26 20:33:23,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:33:23,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:33:23,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292577302] [2020-10-26 20:33:23,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:33:23,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:33:23,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:33:23,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:33:23,662 INFO L87 Difference]: Start difference. First operand 1469 states and 1648 transitions. Second operand 8 states. [2020-10-26 20:33:25,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:33:25,317 INFO L93 Difference]: Finished difference Result 3705 states and 4235 transitions. [2020-10-26 20:33:25,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:33:25,317 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 174 [2020-10-26 20:33:25,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:33:25,318 INFO L225 Difference]: With dead ends: 3705 [2020-10-26 20:33:25,318 INFO L226 Difference]: Without dead ends: 0 [2020-10-26 20:33:25,325 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-26 20:33:25,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-26 20:33:25,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-26 20:33:25,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-26 20:33:25,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-26 20:33:25,326 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2020-10-26 20:33:25,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:33:25,327 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 20:33:25,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:33:25,327 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-26 20:33:25,327 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 20:33:25,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:33:25,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-26 20:33:26,163 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 40 [2020-10-26 20:33:26,925 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 45 [2020-10-26 20:33:27,173 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 26 [2020-10-26 20:33:27,374 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-26 20:33:27,375 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-26 20:33:27,375 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-26 20:33:27,375 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-26 20:33:27,375 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:33:27,376 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)|)) [2020-10-26 20:33:27,376 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:33:27,376 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,376 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,376 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,376 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,377 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,377 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,377 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-26 20:33:27,377 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-26 20:33:27,377 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-26 20:33:27,377 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-26 20:33:27,377 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-26 20:33:27,377 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-26 20:33:27,377 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-26 20:33:27,378 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-26 20:33:27,378 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-26 20:33:27,378 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-26 20:33:27,378 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-26 20:33:27,378 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-26 20:33:27,378 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,378 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,378 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,378 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,379 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,379 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,379 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-26 20:33:27,379 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-26 20:33:27,379 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-26 20:33:27,379 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-26 20:33:27,379 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-26 20:33:27,379 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-26 20:33:27,379 INFO L270 CegarLoopResult]: At program point L436(line 436) the Hoare annotation is: (let ((.cse0 (not (= |old(~a21~0)| 1)))) (and (or (not (= |old(~a20~0)| 1)) .cse0) (or (= 14 |old(~a8~0)|) .cse0) (not (<= |old(~a8~0)| 13)) (or .cse0 (not (= |old(~a7~0)| 0))) (or (not (<= |old(~a16~0)| 5)) .cse0))) [2020-10-26 20:33:27,380 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-26 20:33:27,380 INFO L274 CegarLoopResult]: For program point L436-1(line 436) no Hoare annotation was computed. [2020-10-26 20:33:27,380 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-26 20:33:27,380 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-26 20:33:27,380 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,380 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,380 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,380 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,380 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,380 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,380 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-26 20:33:27,381 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-26 20:33:27,381 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-26 20:33:27,381 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-26 20:33:27,381 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-26 20:33:27,381 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-26 20:33:27,381 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-26 20:33:27,381 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-26 20:33:27,381 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-26 20:33:27,381 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-26 20:33:27,381 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-26 20:33:27,381 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-26 20:33:27,382 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-26 20:33:27,382 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-26 20:33:27,382 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-26 20:33:27,382 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,382 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,382 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,382 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,382 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,382 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-26 20:33:27,382 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-26 20:33:27,383 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-26 20:33:27,383 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-26 20:33:27,383 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-26 20:33:27,383 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-26 20:33:27,383 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-26 20:33:27,383 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-26 20:33:27,383 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-26 20:33:27,383 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,383 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,383 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,384 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,384 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,384 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-26 20:33:27,384 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-26 20:33:27,384 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-26 20:33:27,384 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-26 20:33:27,384 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-26 20:33:27,384 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-26 20:33:27,384 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-26 20:33:27,384 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-26 20:33:27,385 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-26 20:33:27,385 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-26 20:33:27,385 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-26 20:33:27,385 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-26 20:33:27,385 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-26 20:33:27,385 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,385 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,385 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,385 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,385 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,385 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-26 20:33:27,385 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-26 20:33:27,385 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-26 20:33:27,385 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,385 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,385 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-26 20:33:27,386 INFO L274 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-10-26 20:33:27,386 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-26 20:33:27,386 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-26 20:33:27,386 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-26 20:33:27,386 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-26 20:33:27,386 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,386 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,386 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,386 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,387 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-26 20:33:27,387 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,387 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-26 20:33:27,387 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-26 20:33:27,387 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-26 20:33:27,387 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-26 20:33:27,387 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-26 20:33:27,387 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-26 20:33:27,387 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-26 20:33:27,388 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-26 20:33:27,388 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-26 20:33:27,388 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-26 20:33:27,388 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-26 20:33:27,388 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-26 20:33:27,388 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-26 20:33:27,388 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,388 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,388 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,388 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,388 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,389 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-26 20:33:27,389 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-26 20:33:27,389 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-26 20:33:27,389 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-26 20:33:27,389 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-26 20:33:27,389 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-26 20:33:27,389 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-26 20:33:27,389 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-26 20:33:27,389 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,389 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,390 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse7 (= ~a7~0 |old(~a7~0)|)) (.cse2 (= ~a17~0 |old(~a17~0)|)) (.cse3 (= ~a21~0 1)) (.cse4 (= ~a20~0 |old(~a20~0)|)) (.cse5 (= ~a16~0 |old(~a16~0)|)) (.cse6 (= ~a8~0 |old(~a8~0)|))) (let ((.cse0 (and .cse7 .cse2 .cse3 .cse4 .cse5 .cse6)) (.cse1 (not (= |old(~a21~0)| 1)))) (and (or (not (<= |old(~a16~0)| 5)) .cse0 .cse1) (or (not (= |old(~a20~0)| 1)) .cse0 .cse1) (or (= 14 |old(~a8~0)|) .cse0 .cse1) (or (and .cse2 .cse3 .cse4 .cse5 .cse6 (= ~a7~0 0)) .cse1 (not (= |old(~a7~0)| 0))) (or (not (<= |old(~a8~0)| 13)) (and .cse7 .cse2 (= ~a21~0 |old(~a21~0)|) .cse4 .cse5 .cse6))))) [2020-10-26 20:33:27,390 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,390 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,390 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,390 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-26 20:33:27,390 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-26 20:33:27,390 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-26 20:33:27,390 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-26 20:33:27,390 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-26 20:33:27,390 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-26 20:33:27,391 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-26 20:33:27,391 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-26 20:33:27,391 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-26 20:33:27,391 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-26 20:33:27,391 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-26 20:33:27,391 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,391 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,391 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,391 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,391 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-26 20:33:27,391 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,392 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,392 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-26 20:33:27,392 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-26 20:33:27,392 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-26 20:33:27,392 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-26 20:33:27,392 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-26 20:33:27,392 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-26 20:33:27,392 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-26 20:33:27,392 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-26 20:33:27,392 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-26 20:33:27,392 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-26 20:33:27,393 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-26 20:33:27,393 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-26 20:33:27,393 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,393 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,393 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,393 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,393 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,393 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-26 20:33:27,393 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-26 20:33:27,393 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-26 20:33:27,394 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-26 20:33:27,394 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-26 20:33:27,394 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-26 20:33:27,394 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-26 20:33:27,394 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-26 20:33:27,394 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-26 20:33:27,394 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-26 20:33:27,394 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-26 20:33:27,394 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-26 20:33:27,395 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-26 20:33:27,395 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-26 20:33:27,395 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-26 20:33:27,395 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-26 20:33:27,395 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 20:33:27,395 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a12~0 8) (= ~a8~0 15) (= ~a20~0 1) (= 5 ~a16~0) (= ~a7~0 0) (= ~a17~0 1)) [2020-10-26 20:33:27,395 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-26 20:33:27,395 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 20:33:27,395 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a8~0 15) (= 5 ~a16~0) (= ~a7~0 0)) (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-10-26 20:33:27,396 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:33:27,396 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (and .cse0 (<= ~a16~0 5)) (and .cse0 (= ~a7~0 0)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (and .cse0 (not (= 14 ~a8~0))) (not (= 15 |old(~a8~0)|)) (and .cse0 (= ~a20~0 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0)) (<= ~a8~0 13))) [2020-10-26 20:33:27,396 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-26 20:33:27,396 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-26 20:33:27,396 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) (and .cse0 (<= ~a16~0 5)) (and .cse0 (= ~a7~0 0)) (not (= 5 |old(~a16~0)|)) (not (= |old(~a21~0)| 1)) (and .cse0 (not (= 14 ~a8~0))) (not (= 15 |old(~a8~0)|)) (and .cse0 (= ~a20~0 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0)) (<= ~a8~0 13))) [2020-10-26 20:33:27,396 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-26 20:33:27,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:33:27 BoogieIcfgContainer [2020-10-26 20:33:27,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:33:27,419 INFO L168 Benchmark]: Toolchain (without parser) took 52830.70 ms. Allocated memory was 160.4 MB in the beginning and 836.8 MB in the end (delta: 676.3 MB). Free memory was 133.2 MB in the beginning and 527.5 MB in the end (delta: -394.3 MB). Peak memory consumption was 498.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:27,419 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 160.4 MB. Free memory is still 132.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:33:27,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 784.95 ms. Allocated memory is still 160.4 MB. Free memory was 132.6 MB in the beginning and 136.4 MB in the end (delta: -3.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:27,421 INFO L168 Benchmark]: Boogie Preprocessor took 119.25 ms. Allocated memory is still 160.4 MB. Free memory was 136.4 MB in the beginning and 131.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:27,422 INFO L168 Benchmark]: RCFGBuilder took 1397.37 ms. Allocated memory is still 160.4 MB. Free memory was 131.7 MB in the beginning and 113.4 MB in the end (delta: 18.3 MB). Peak memory consumption was 84.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:27,422 INFO L168 Benchmark]: TraceAbstraction took 50511.31 ms. Allocated memory was 160.4 MB in the beginning and 836.8 MB in the end (delta: 676.3 MB). Free memory was 112.9 MB in the beginning and 527.5 MB in the end (delta: -414.6 MB). Peak memory consumption was 477.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:33:27,426 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 160.4 MB. Free memory is still 132.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 784.95 ms. Allocated memory is still 160.4 MB. Free memory was 132.6 MB in the beginning and 136.4 MB in the end (delta: -3.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 119.25 ms. Allocated memory is still 160.4 MB. Free memory was 136.4 MB in the beginning and 131.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1397.37 ms. Allocated memory is still 160.4 MB. Free memory was 131.7 MB in the beginning and 113.4 MB in the end (delta: 18.3 MB). Peak memory consumption was 84.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 50511.31 ms. Allocated memory was 160.4 MB in the beginning and 836.8 MB in the end (delta: 676.3 MB). Free memory was 112.9 MB in the beginning and 527.5 MB in the end (delta: -414.6 MB). Peak memory consumption was 477.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((((((((((!(\old(a17) == 1) || !(\old(a20) == 1)) || (a21 == 1 && a16 <= 5)) || (a21 == 1 && a7 == 0)) || !(5 == \old(a16))) || !(\old(a21) == 1)) || (a21 == 1 && !(14 == a8))) || !(15 == \old(a8))) || (a21 == 1 && a20 == 1)) || !(a12 == 8)) || !(\old(a7) == 0)) || a8 <= 13 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 48.3s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 18.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 188 SDtfs, 3691 SDslu, 247 SDs, 0 SdLazy, 6398 SolverSat, 1177 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1475occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 775 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 142 PreInvPairs, 184 NumberOfFragments, 458 HoareAnnotationTreeSize, 142 FomulaSimplifications, 6306 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 9 FomulaSimplificationsInter, 3059 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 28.0s InterpolantComputationTime, 1058 NumberOfCodeBlocks, 1058 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1050 ConstructedInterpolants, 0 QuantifiedInterpolants, 716289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 349/418 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...