/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/loops/lu.cmp.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 15:17:33,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 15:17:33,684 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 15:17:33,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 15:17:33,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 15:17:33,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 15:17:33,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 15:17:33,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 15:17:33,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 15:17:33,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 15:17:33,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 15:17:33,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 15:17:33,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 15:17:33,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 15:17:33,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 15:17:33,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 15:17:33,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 15:17:33,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 15:17:33,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 15:17:33,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 15:17:33,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 15:17:33,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 15:17:33,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 15:17:33,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 15:17:33,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 15:17:33,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 15:17:33,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 15:17:33,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 15:17:33,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 15:17:33,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 15:17:33,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 15:17:33,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 15:17:33,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 15:17:33,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 15:17:33,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 15:17:33,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 15:17:33,810 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 15:17:33,810 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 15:17:33,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 15:17:33,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 15:17:33,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 15:17:33,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 15:17:33,871 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 15:17:33,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 15:17:33,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 15:17:33,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 15:17:33,875 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 15:17:33,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 15:17:33,876 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 15:17:33,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 15:17:33,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 15:17:33,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 15:17:33,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 15:17:33,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 15:17:33,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 15:17:33,878 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 15:17:33,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 15:17:33,879 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 15:17:33,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 15:17:33,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 15:17:33,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 15:17:33,880 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 15:17:33,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 15:17:33,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 15:17:33,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 15:17:33,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 15:17:33,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 15:17:33,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 15:17:33,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 15:17:33,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 15:17:33,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 15:17:33,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 15:17:34,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 15:17:34,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 15:17:34,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 15:17:34,354 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 15:17:34,355 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 15:17:34,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/lu.cmp.c [2020-10-28 15:17:34,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/17a70dba9/6af5eb0a0c1149e5a89f7194d42fbffa/FLAG2a6896958 [2020-10-28 15:17:35,158 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 15:17:35,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/lu.cmp.c [2020-10-28 15:17:35,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/17a70dba9/6af5eb0a0c1149e5a89f7194d42fbffa/FLAG2a6896958 [2020-10-28 15:17:35,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/17a70dba9/6af5eb0a0c1149e5a89f7194d42fbffa [2020-10-28 15:17:35,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 15:17:35,480 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 15:17:35,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 15:17:35,484 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 15:17:35,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 15:17:35,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:17:35" (1/1) ... [2020-10-28 15:17:35,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a36b760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:35, skipping insertion in model container [2020-10-28 15:17:35,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:17:35" (1/1) ... [2020-10-28 15:17:35,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 15:17:35,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 15:17:35,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 15:17:35,757 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 15:17:35,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 15:17:35,891 INFO L208 MainTranslator]: Completed translation [2020-10-28 15:17:35,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:35 WrapperNode [2020-10-28 15:17:35,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 15:17:35,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 15:17:35,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 15:17:35,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 15:17:35,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:35" (1/1) ... [2020-10-28 15:17:35,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:35" (1/1) ... [2020-10-28 15:17:35,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:35" (1/1) ... [2020-10-28 15:17:35,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:35" (1/1) ... [2020-10-28 15:17:35,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:35" (1/1) ... [2020-10-28 15:17:36,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:35" (1/1) ... [2020-10-28 15:17:36,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:35" (1/1) ... [2020-10-28 15:17:36,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 15:17:36,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 15:17:36,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 15:17:36,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 15:17:36,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:35" (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 [2020-10-28 15:17:36,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 15:17:36,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 15:17:36,128 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 15:17:36,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-28 15:17:36,129 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2020-10-28 15:17:36,129 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 15:17:36,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2020-10-28 15:17:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 15:17:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 15:17:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 15:17:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 15:17:36,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-28 15:17:36,131 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2020-10-28 15:17:36,131 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2020-10-28 15:17:36,131 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 15:17:36,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-28 15:17:36,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-28 15:17:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 15:17:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 15:17:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 15:17:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 15:17:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 15:17:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 15:17:36,821 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 15:17:36,821 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-10-28 15:17:36,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:17:36 BoogieIcfgContainer [2020-10-28 15:17:36,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 15:17:36,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 15:17:36,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 15:17:36,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 15:17:36,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 03:17:35" (1/3) ... [2020-10-28 15:17:36,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9698d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:17:36, skipping insertion in model container [2020-10-28 15:17:36,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:17:35" (2/3) ... [2020-10-28 15:17:36,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9698d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:17:36, skipping insertion in model container [2020-10-28 15:17:36,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:17:36" (3/3) ... [2020-10-28 15:17:36,833 INFO L111 eAbstractionObserver]: Analyzing ICFG lu.cmp.c [2020-10-28 15:17:36,846 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 15:17:36,852 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 15:17:36,866 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 15:17:36,894 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 15:17:36,895 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 15:17:36,895 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 15:17:36,895 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 15:17:36,895 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 15:17:36,895 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 15:17:36,895 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 15:17:36,895 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 15:17:36,914 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2020-10-28 15:17:36,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-28 15:17:36,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:36,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:17:36,922 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:36,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:36,929 INFO L82 PathProgramCache]: Analyzing trace with hash 636154150, now seen corresponding path program 1 times [2020-10-28 15:17:36,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:36,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361153186] [2020-10-28 15:17:36,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:37,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:37,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:37,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:37,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 15:17:37,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 15:17:37,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-10-28 15:17:37,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:37,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:37,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:37,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 15:17:37,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:37,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-28 15:17:37,703 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-10-28 15:17:37,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:37,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:37,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:37,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:37,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:37,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 15:17:37,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:37,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:37,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:37,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:37,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:17:37,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361153186] [2020-10-28 15:17:37,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:17:37,755 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-28 15:17:37,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829129656] [2020-10-28 15:17:37,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-28 15:17:37,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:37,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-28 15:17:37,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 15:17:37,781 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2020-10-28 15:17:38,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:38,051 INFO L93 Difference]: Finished difference Result 132 states and 197 transitions. [2020-10-28 15:17:38,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-28 15:17:38,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-28 15:17:38,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:38,063 INFO L225 Difference]: With dead ends: 132 [2020-10-28 15:17:38,064 INFO L226 Difference]: Without dead ends: 25 [2020-10-28 15:17:38,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-28 15:17:38,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-10-28 15:17:38,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2020-10-28 15:17:38,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-28 15:17:38,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2020-10-28 15:17:38,134 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 13 [2020-10-28 15:17:38,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:38,135 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2020-10-28 15:17:38,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-28 15:17:38,135 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2020-10-28 15:17:38,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-28 15:17:38,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:38,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:17:38,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 15:17:38,137 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:38,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:38,138 INFO L82 PathProgramCache]: Analyzing trace with hash 263975187, now seen corresponding path program 1 times [2020-10-28 15:17:38,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:38,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498012893] [2020-10-28 15:17:38,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:38,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:38,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:38,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:38,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:38,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 15:17:38,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 15:17:38,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 519 [2020-10-28 15:17:38,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:38,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:38,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 15:17:38,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:17:38,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 15:17:38,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 15:17:38,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:38,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:38,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:38,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:38,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:38,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 15:17:38,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:38,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:38,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:38,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:38,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:38,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:38,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 15:17:38,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498012893] [2020-10-28 15:17:38,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 15:17:38,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 15:17:38,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527584162] [2020-10-28 15:17:38,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 15:17:38,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:38,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 15:17:38,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 15:17:38,805 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 6 states. [2020-10-28 15:17:39,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:39,189 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2020-10-28 15:17:39,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 15:17:39,190 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-28 15:17:39,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:39,192 INFO L225 Difference]: With dead ends: 39 [2020-10-28 15:17:39,192 INFO L226 Difference]: Without dead ends: 36 [2020-10-28 15:17:39,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-28 15:17:39,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-28 15:17:39,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2020-10-28 15:17:39,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-28 15:17:39,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-10-28 15:17:39,206 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 13 [2020-10-28 15:17:39,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:39,207 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-10-28 15:17:39,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 15:17:39,207 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-10-28 15:17:39,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-28 15:17:39,209 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:39,209 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:17:39,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 15:17:39,209 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:39,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:39,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1293456893, now seen corresponding path program 1 times [2020-10-28 15:17:39,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:39,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138046817] [2020-10-28 15:17:39,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:39,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:39,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:39,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:39,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:39,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:39,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:39,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:40,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:40,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 15:17:40,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-28 15:17:40,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1208 [2020-10-28 15:17:40,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:40,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:40,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 15:17:40,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:17:40,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 15:17:40,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:40,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:40,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:40,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:40,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:40,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:40,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 15:17:40,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:40,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:40,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:40,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:40,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:40,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:17:40,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 15:17:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:40,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:40,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:40,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:17:40,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:40,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:17:40,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:40,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:40,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:17:40,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:40,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:17:40,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:40,550 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 15:17:40,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138046817] [2020-10-28 15:17:40,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:17:40,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 15:17:40,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63494397] [2020-10-28 15:17:40,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 15:17:40,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:40,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 15:17:40,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 15:17:40,553 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 5 states. [2020-10-28 15:17:40,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:40,769 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2020-10-28 15:17:40,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 15:17:40,770 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-10-28 15:17:40,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:40,773 INFO L225 Difference]: With dead ends: 59 [2020-10-28 15:17:40,773 INFO L226 Difference]: Without dead ends: 39 [2020-10-28 15:17:40,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-28 15:17:40,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-28 15:17:40,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2020-10-28 15:17:40,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-28 15:17:40,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-10-28 15:17:40,783 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 22 [2020-10-28 15:17:40,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:40,783 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-10-28 15:17:40,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 15:17:40,784 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-10-28 15:17:40,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-28 15:17:40,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:40,785 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:17:40,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 15:17:40,785 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:40,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:40,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1426298141, now seen corresponding path program 1 times [2020-10-28 15:17:40,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:40,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108718961] [2020-10-28 15:17:40,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:40,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:40,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:40,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:40,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:41,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:41,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:41,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:41,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:42,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:42,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:42,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:42,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:42,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:42,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:42,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:42,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:42,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:42,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:43,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:43,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:45,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:45,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 15:17:45,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-28 15:17:45,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 15:17:45,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:45,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:45,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:17:45,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:17:45,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-28 15:17:45,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:45,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:45,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:45,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:45,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:45,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:45,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 15:17:45,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:45,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:45,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:45,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:45,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:45,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 15:17:45,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:17:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:45,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:45,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:45,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:17:45,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:45,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:17:45,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:45,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:46,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:17:46,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:46,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:17:46,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:46,005 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-28 15:17:46,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108718961] [2020-10-28 15:17:46,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:17:46,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 15:17:46,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748939091] [2020-10-28 15:17:46,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 15:17:46,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:46,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 15:17:46,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-28 15:17:46,009 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 7 states. [2020-10-28 15:17:46,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:46,407 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2020-10-28 15:17:46,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 15:17:46,408 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-10-28 15:17:46,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:46,409 INFO L225 Difference]: With dead ends: 51 [2020-10-28 15:17:46,409 INFO L226 Difference]: Without dead ends: 48 [2020-10-28 15:17:46,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-28 15:17:46,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-28 15:17:46,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2020-10-28 15:17:46,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-28 15:17:46,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2020-10-28 15:17:46,421 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 30 [2020-10-28 15:17:46,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:46,421 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2020-10-28 15:17:46,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 15:17:46,421 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2020-10-28 15:17:46,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-28 15:17:46,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 15:17:46,423 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 15:17:46,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 15:17:46,423 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 15:17:46,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 15:17:46,424 INFO L82 PathProgramCache]: Analyzing trace with hash 2058183768, now seen corresponding path program 2 times [2020-10-28 15:17:46,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 15:17:46,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [822808656] [2020-10-28 15:17:46,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 15:17:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:46,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:46,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:46,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:46,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:46,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:46,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:46,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:46,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:46,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:47,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:47,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:47,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:47,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:47,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:48,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:48,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:48,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:49,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:49,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:51,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:51,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 15:17:51,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 19 [2020-10-28 15:17:51,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-28 15:17:51,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:51,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:51,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 15:17:51,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 15:17:51,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-28 15:17:51,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 15:17:51,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 15:17:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:51,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:51,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:51,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 15:17:51,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:51,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 15:17:51,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:51,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:51,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 15:17:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:51,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 15:17:51,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 15:17:51,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 15:17:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:51,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:51,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:51,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:17:51,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:51,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 15:17:51,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:51,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:51,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:17:51,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:51,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:17:51,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:17:51,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 15:17:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 15:17:51,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 15:17:51,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 15:17:51,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 15:17:51,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 15:17:51,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 15:17:51,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 15:17:51,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 15:17:51,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 15:17:51,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 15:17:51,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 15:17:51,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 15:17:51,644 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-28 15:17:51,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [822808656] [2020-10-28 15:17:51,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 15:17:51,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 15:17:51,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556731026] [2020-10-28 15:17:51,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 15:17:51,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 15:17:51,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 15:17:51,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-28 15:17:51,649 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand 7 states. [2020-10-28 15:17:51,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 15:17:51,933 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2020-10-28 15:17:51,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 15:17:51,934 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-10-28 15:17:51,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 15:17:51,934 INFO L225 Difference]: With dead ends: 46 [2020-10-28 15:17:51,935 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 15:17:51,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2020-10-28 15:17:51,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 15:17:51,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 15:17:51,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 15:17:51,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 15:17:51,939 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2020-10-28 15:17:51,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 15:17:51,939 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 15:17:51,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 15:17:51,939 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 15:17:51,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 15:17:51,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 15:17:51,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 15:17:52,281 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-10-28 15:17:52,281 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-10-28 15:17:52,281 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-10-28 15:17:52,281 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-28 15:17:52,282 INFO L274 CegarLoopResult]: For program point L118-2(lines 118 136) no Hoare annotation was computed. [2020-10-28 15:17:52,282 INFO L277 CegarLoopResult]: At program point L118-3(lines 118 136) the Hoare annotation is: true [2020-10-28 15:17:52,282 INFO L274 CegarLoopResult]: For program point L118-4(lines 118 136) no Hoare annotation was computed. [2020-10-28 15:17:52,282 INFO L277 CegarLoopResult]: At program point L120(line 120) the Hoare annotation is: true [2020-10-28 15:17:52,282 INFO L274 CegarLoopResult]: For program point L120-1(line 120) no Hoare annotation was computed. [2020-10-28 15:17:52,282 INFO L274 CegarLoopResult]: For program point ludcmpEXIT(lines 111 155) no Hoare annotation was computed. [2020-10-28 15:17:52,282 INFO L270 CegarLoopResult]: At program point ludcmpENTRY(lines 111 155) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-28 15:17:52,282 INFO L274 CegarLoopResult]: For program point L129-2(lines 129 135) no Hoare annotation was computed. [2020-10-28 15:17:52,283 INFO L277 CegarLoopResult]: At program point L129-3(lines 129 135) the Hoare annotation is: true [2020-10-28 15:17:52,283 INFO L274 CegarLoopResult]: For program point L121-2(lines 121 128) no Hoare annotation was computed. [2020-10-28 15:17:52,283 INFO L277 CegarLoopResult]: At program point L121-3(lines 121 128) the Hoare annotation is: true [2020-10-28 15:17:52,283 INFO L274 CegarLoopResult]: For program point L121-4(lines 121 128) no Hoare annotation was computed. [2020-10-28 15:17:52,283 INFO L274 CegarLoopResult]: For program point L146-2(lines 146 152) no Hoare annotation was computed. [2020-10-28 15:17:52,283 INFO L277 CegarLoopResult]: At program point L146-3(lines 146 152) the Hoare annotation is: true [2020-10-28 15:17:52,283 INFO L274 CegarLoopResult]: For program point L146-4(lines 146 152) no Hoare annotation was computed. [2020-10-28 15:17:52,283 INFO L274 CegarLoopResult]: For program point ludcmpFINAL(lines 111 155) no Hoare annotation was computed. [2020-10-28 15:17:52,284 INFO L274 CegarLoopResult]: For program point L138-2(lines 138 144) no Hoare annotation was computed. [2020-10-28 15:17:52,284 INFO L277 CegarLoopResult]: At program point L138-3(lines 138 144) the Hoare annotation is: true [2020-10-28 15:17:52,284 INFO L274 CegarLoopResult]: For program point L138-4(lines 138 144) no Hoare annotation was computed. [2020-10-28 15:17:52,284 INFO L274 CegarLoopResult]: For program point L132-2(lines 132 133) no Hoare annotation was computed. [2020-10-28 15:17:52,284 INFO L277 CegarLoopResult]: At program point L132-3(lines 132 133) the Hoare annotation is: true [2020-10-28 15:17:52,284 INFO L274 CegarLoopResult]: For program point L132-4(lines 132 133) no Hoare annotation was computed. [2020-10-28 15:17:52,284 INFO L274 CegarLoopResult]: For program point L124(lines 124 126) no Hoare annotation was computed. [2020-10-28 15:17:52,284 INFO L274 CegarLoopResult]: For program point L124-1(lines 124 126) no Hoare annotation was computed. [2020-10-28 15:17:52,285 INFO L274 CegarLoopResult]: For program point L149-2(lines 149 150) no Hoare annotation was computed. [2020-10-28 15:17:52,285 INFO L277 CegarLoopResult]: At program point L149-3(lines 149 150) the Hoare annotation is: true [2020-10-28 15:17:52,285 INFO L274 CegarLoopResult]: For program point L149-4(lines 149 150) no Hoare annotation was computed. [2020-10-28 15:17:52,285 INFO L274 CegarLoopResult]: For program point L141-2(lines 141 142) no Hoare annotation was computed. [2020-10-28 15:17:52,285 INFO L277 CegarLoopResult]: At program point L141-3(lines 141 142) the Hoare annotation is: true [2020-10-28 15:17:52,285 INFO L274 CegarLoopResult]: For program point L141-4(lines 141 142) no Hoare annotation was computed. [2020-10-28 15:17:52,285 INFO L274 CegarLoopResult]: For program point L125-2(lines 125 126) no Hoare annotation was computed. [2020-10-28 15:17:52,285 INFO L277 CegarLoopResult]: At program point L125-3(lines 125 126) the Hoare annotation is: true [2020-10-28 15:17:52,285 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 15:17:52,286 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 15:17:52,286 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= |~#x~0.offset| |old(~#x~0.offset)|) (= |old(#memory_real)| |#memory_real|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2020-10-28 15:17:52,286 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 15:17:52,286 INFO L274 CegarLoopResult]: For program point L80(lines 80 81) no Hoare annotation was computed. [2020-10-28 15:17:52,286 INFO L274 CegarLoopResult]: For program point L80-2(lines 80 81) no Hoare annotation was computed. [2020-10-28 15:17:52,286 INFO L274 CegarLoopResult]: For program point fabsEXIT(lines 76 83) no Hoare annotation was computed. [2020-10-28 15:17:52,287 INFO L277 CegarLoopResult]: At program point fabsENTRY(lines 76 83) the Hoare annotation is: true [2020-10-28 15:17:52,287 INFO L274 CegarLoopResult]: For program point fabsFINAL(lines 76 83) no Hoare annotation was computed. [2020-10-28 15:17:52,287 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 15:17:52,287 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-28 15:17:52,287 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 15:17:52,287 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 15:17:52,287 INFO L274 CegarLoopResult]: For program point L99-2(line 99) no Hoare annotation was computed. [2020-10-28 15:17:52,287 INFO L274 CegarLoopResult]: For program point L93-2(lines 93 104) no Hoare annotation was computed. [2020-10-28 15:17:52,288 INFO L270 CegarLoopResult]: At program point L93-3(lines 93 104) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-10-28 15:17:52,288 INFO L277 CegarLoopResult]: At program point L93-4(lines 93 104) the Hoare annotation is: true [2020-10-28 15:17:52,288 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 85 109) no Hoare annotation was computed. [2020-10-28 15:17:52,288 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 85 109) no Hoare annotation was computed. [2020-10-28 15:17:52,288 INFO L274 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-10-28 15:17:52,288 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 15:17:52,288 INFO L274 CegarLoopResult]: For program point L96-2(lines 96 101) no Hoare annotation was computed. [2020-10-28 15:17:52,289 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 85 109) the Hoare annotation is: (and (= |old(#memory_real)| |#memory_real|) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-28 15:17:52,289 INFO L270 CegarLoopResult]: At program point L96-3(lines 96 101) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-10-28 15:17:52,289 INFO L270 CegarLoopResult]: At program point L96-4(lines 96 101) the Hoare annotation is: (and (<= main_~i~0 5) (<= main_~n~0 5) (<= 5 main_~n~0)) [2020-10-28 15:17:52,289 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 15:17:52,289 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2020-10-28 15:17:52,289 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 5 10) no Hoare annotation was computed. [2020-10-28 15:17:52,289 INFO L270 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2020-10-28 15:17:52,290 INFO L274 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-10-28 15:17:52,290 INFO L274 CegarLoopResult]: For program point L7-1(line 7) no Hoare annotation was computed. [2020-10-28 15:17:52,290 INFO L274 CegarLoopResult]: For program point L6-2(lines 5 10) no Hoare annotation was computed. [2020-10-28 15:17:52,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 03:17:52 BoogieIcfgContainer [2020-10-28 15:17:52,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 15:17:52,310 INFO L168 Benchmark]: Toolchain (without parser) took 16835.02 ms. Allocated memory was 166.7 MB in the beginning and 448.8 MB in the end (delta: 282.1 MB). Free memory was 142.7 MB in the beginning and 175.1 MB in the end (delta: -32.4 MB). Peak memory consumption was 250.7 MB. Max. memory is 8.0 GB. [2020-10-28 15:17:52,311 INFO L168 Benchmark]: CDTParser took 0.63 ms. Allocated memory is still 166.7 MB. Free memory is still 137.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 15:17:52,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.39 ms. Allocated memory is still 166.7 MB. Free memory was 142.1 MB in the beginning and 130.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-10-28 15:17:52,313 INFO L168 Benchmark]: Boogie Preprocessor took 131.06 ms. Allocated memory is still 166.7 MB. Free memory was 130.1 MB in the beginning and 127.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-28 15:17:52,314 INFO L168 Benchmark]: RCFGBuilder took 794.00 ms. Allocated memory is still 166.7 MB. Free memory was 127.8 MB in the beginning and 136.5 MB in the end (delta: -8.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 8.0 GB. [2020-10-28 15:17:52,315 INFO L168 Benchmark]: TraceAbstraction took 15483.10 ms. Allocated memory was 166.7 MB in the beginning and 448.8 MB in the end (delta: 282.1 MB). Free memory was 136.0 MB in the beginning and 175.1 MB in the end (delta: -39.1 MB). Peak memory consumption was 243.0 MB. Max. memory is 8.0 GB. [2020-10-28 15:17:52,318 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 166.7 MB. Free memory is still 137.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 409.39 ms. Allocated memory is still 166.7 MB. Free memory was 142.1 MB in the beginning and 130.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 131.06 ms. Allocated memory is still 166.7 MB. Free memory was 130.1 MB in the beginning and 127.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 794.00 ms. Allocated memory is still 166.7 MB. Free memory was 127.8 MB in the beginning and 136.5 MB in the end (delta: -8.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 15483.10 ms. Allocated memory was 166.7 MB in the beginning and 448.8 MB in the end (delta: 282.1 MB). Free memory was 136.0 MB in the beginning and 175.1 MB in the end (delta: -39.1 MB). Peak memory consumption was 243.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 132]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: (i <= 5 && n <= 5) && 5 <= n - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: n <= 5 && 5 <= n - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.0s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 130 SDtfs, 89 SDslu, 117 SDs, 0 SdLazy, 296 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 17 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 60 PreInvPairs, 94 NumberOfFragments, 119 HoareAnnotationTreeSize, 60 FomulaSimplifications, 408 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 23 FomulaSimplificationsInter, 271 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 12.9s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 13100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 32/58 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...