/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/loops/string-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 10:00:43,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 10:00:43,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 10:00:43,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 10:00:43,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 10:00:43,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 10:00:43,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 10:00:43,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 10:00:43,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 10:00:43,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 10:00:43,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 10:00:43,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 10:00:43,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 10:00:43,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 10:00:43,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 10:00:43,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 10:00:43,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 10:00:43,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 10:00:43,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 10:00:43,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 10:00:43,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 10:00:43,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 10:00:43,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 10:00:43,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 10:00:43,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 10:00:43,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 10:00:43,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 10:00:43,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 10:00:43,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 10:00:43,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 10:00:43,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 10:00:43,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 10:00:43,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 10:00:43,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 10:00:43,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 10:00:43,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 10:00:43,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 10:00:43,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 10:00:43,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 10:00:43,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 10:00:43,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 10:00:43,982 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 10:00:44,009 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 10:00:44,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 10:00:44,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 10:00:44,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 10:00:44,012 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 10:00:44,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 10:00:44,012 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 10:00:44,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 10:00:44,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 10:00:44,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 10:00:44,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 10:00:44,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 10:00:44,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 10:00:44,014 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 10:00:44,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 10:00:44,014 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 10:00:44,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 10:00:44,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 10:00:44,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 10:00:44,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 10:00:44,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 10:00:44,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 10:00:44,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 10:00:44,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 10:00:44,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 10:00:44,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 10:00:44,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 10:00:44,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 10:00:44,016 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 10:00:44,017 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 10:00:44,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 10:00:44,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 10:00:44,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 10:00:44,483 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 10:00:44,483 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 10:00:44,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/string-1.i [2020-10-29 10:00:44,573 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f52806394/5d0ffc4f037d4bfa8c16cc7c4af59120/FLAG685378deb [2020-10-29 10:00:45,301 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 10:00:45,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/string-1.i [2020-10-29 10:00:45,312 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f52806394/5d0ffc4f037d4bfa8c16cc7c4af59120/FLAG685378deb [2020-10-29 10:00:45,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f52806394/5d0ffc4f037d4bfa8c16cc7c4af59120 [2020-10-29 10:00:45,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 10:00:45,638 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 10:00:45,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 10:00:45,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 10:00:45,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 10:00:45,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 10:00:45" (1/1) ... [2020-10-29 10:00:45,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bbaa50a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:45, skipping insertion in model container [2020-10-29 10:00:45,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 10:00:45" (1/1) ... [2020-10-29 10:00:45,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 10:00:45,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 10:00:45,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 10:00:45,935 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 10:00:45,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 10:00:45,981 INFO L208 MainTranslator]: Completed translation [2020-10-29 10:00:45,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:45 WrapperNode [2020-10-29 10:00:45,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 10:00:45,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 10:00:45,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 10:00:45,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 10:00:45,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:45" (1/1) ... [2020-10-29 10:00:45,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:45" (1/1) ... [2020-10-29 10:00:46,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:45" (1/1) ... [2020-10-29 10:00:46,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:45" (1/1) ... [2020-10-29 10:00:46,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:45" (1/1) ... [2020-10-29 10:00:46,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:45" (1/1) ... [2020-10-29 10:00:46,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:45" (1/1) ... [2020-10-29 10:00:46,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 10:00:46,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 10:00:46,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 10:00:46,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 10:00:46,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:45" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 10:00:46,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 10:00:46,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 10:00:46,121 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 10:00:46,122 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-29 10:00:46,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 10:00:46,123 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 10:00:46,123 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 10:00:46,124 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 10:00:46,124 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 10:00:46,124 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 10:00:46,125 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 10:00:46,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 10:00:46,126 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-29 10:00:46,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 10:00:46,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-29 10:00:46,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 10:00:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 10:00:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 10:00:46,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 10:00:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 10:00:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 10:00:46,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 10:00:46,718 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 10:00:46,718 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-29 10:00:46,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 10:00:46 BoogieIcfgContainer [2020-10-29 10:00:46,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 10:00:46,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 10:00:46,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 10:00:46,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 10:00:46,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 10:00:45" (1/3) ... [2020-10-29 10:00:46,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468a93fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 10:00:46, skipping insertion in model container [2020-10-29 10:00:46,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 10:00:45" (2/3) ... [2020-10-29 10:00:46,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468a93fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 10:00:46, skipping insertion in model container [2020-10-29 10:00:46,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 10:00:46" (3/3) ... [2020-10-29 10:00:46,744 INFO L111 eAbstractionObserver]: Analyzing ICFG string-1.i [2020-10-29 10:00:46,766 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 10:00:46,771 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 10:00:46,786 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 10:00:46,815 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 10:00:46,815 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 10:00:46,816 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 10:00:46,816 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 10:00:46,816 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 10:00:46,816 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 10:00:46,816 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 10:00:46,816 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 10:00:46,835 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-10-29 10:00:46,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-29 10:00:46,842 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 10:00:46,842 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] [2020-10-29 10:00:46,843 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 10:00:46,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 10:00:46,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1881354354, now seen corresponding path program 1 times [2020-10-29 10:00:46,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 10:00:46,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2088866661] [2020-10-29 10:00:46,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 10:00:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:00:47,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:00:47,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:00:47,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:00:47,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:00:47,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:00:47,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:00:47,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:00:47,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 10:00:47,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 10:00:47,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 981 [2020-10-29 10:00:47,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:00:47,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:00:47,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 10:00:47,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-29 10:00:47,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 10:00:47,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 10:00:48,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 10:00:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 10:00:48,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 10:00:48,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 10:00:48,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 10:00:48,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 10:00:48,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 10:00:48,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 10:00:48,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 10:00:48,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 10:00:48,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 10:00:48,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 10:00:48,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 10:00:48,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 10:00:48,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2088866661] [2020-10-29 10:00:48,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 10:00:48,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 10:00:48,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988656008] [2020-10-29 10:00:48,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 10:00:48,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 10:00:48,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 10:00:48,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-29 10:00:48,199 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 6 states. [2020-10-29 10:00:48,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 10:00:48,432 INFO L93 Difference]: Finished difference Result 65 states and 93 transitions. [2020-10-29 10:00:48,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 10:00:48,434 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-29 10:00:48,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 10:00:48,441 INFO L225 Difference]: With dead ends: 65 [2020-10-29 10:00:48,441 INFO L226 Difference]: Without dead ends: 0 [2020-10-29 10:00:48,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-29 10:00:48,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-29 10:00:48,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-29 10:00:48,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-29 10:00:48,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-29 10:00:48,474 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-10-29 10:00:48,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 10:00:48,474 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-29 10:00:48,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 10:00:48,475 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-29 10:00:48,475 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-29 10:00:48,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 10:00:48,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-29 10:00:48,613 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2020-10-29 10:00:48,614 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-10-29 10:00:48,614 INFO L274 CegarLoopResult]: For program point L12-1(line 12) no Hoare annotation was computed. [2020-10-29 10:00:48,614 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-29 10:00:48,614 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-29 10:00:48,615 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-29 10:00:48,615 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-10-29 10:00:48,615 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-29 10:00:48,615 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-29 10:00:48,615 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-29 10:00:48,616 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-29 10:00:48,616 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-29 10:00:48,616 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-10-29 10:00:48,616 INFO L274 CegarLoopResult]: For program point L16-2(lines 15 17) no Hoare annotation was computed. [2020-10-29 10:00:48,616 INFO L274 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 15 17) no Hoare annotation was computed. [2020-10-29 10:00:48,616 INFO L274 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 15 17) no Hoare annotation was computed. [2020-10-29 10:00:48,616 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 28 72) no Hoare annotation was computed. [2020-10-29 10:00:48,617 INFO L270 CegarLoopResult]: At program point L69(line 69) the Hoare annotation is: (and (<= main_~found~0 1) (<= 0 main_~found~0)) [2020-10-29 10:00:48,617 INFO L274 CegarLoopResult]: For program point L69-1(line 69) no Hoare annotation was computed. [2020-10-29 10:00:48,617 INFO L274 CegarLoopResult]: For program point L53-2(lines 53 65) no Hoare annotation was computed. [2020-10-29 10:00:48,617 INFO L274 CegarLoopResult]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2020-10-29 10:00:48,617 INFO L270 CegarLoopResult]: At program point L37-3(lines 37 38) the Hoare annotation is: (and (<= main_~found~0 1) (<= 0 main_~found~0)) [2020-10-29 10:00:48,618 INFO L274 CegarLoopResult]: For program point L37-4(lines 37 38) no Hoare annotation was computed. [2020-10-29 10:00:48,618 INFO L274 CegarLoopResult]: For program point L33-2(lines 33 34) no Hoare annotation was computed. [2020-10-29 10:00:48,618 INFO L270 CegarLoopResult]: At program point L33-3(lines 33 34) the Hoare annotation is: (and (<= main_~found~0 1) (<= 0 main_~found~0)) [2020-10-29 10:00:48,618 INFO L274 CegarLoopResult]: For program point L33-4(lines 33 34) no Hoare annotation was computed. [2020-10-29 10:00:48,618 INFO L274 CegarLoopResult]: For program point L46-1(lines 46 47) no Hoare annotation was computed. [2020-10-29 10:00:48,619 INFO L274 CegarLoopResult]: For program point mainFINAL(lines 28 72) no Hoare annotation was computed. [2020-10-29 10:00:48,619 INFO L270 CegarLoopResult]: At program point L46-3(lines 46 47) the Hoare annotation is: (and (<= main_~found~0 1) (<= 0 main_~found~0)) [2020-10-29 10:00:48,619 INFO L274 CegarLoopResult]: For program point L46-4(lines 29 72) no Hoare annotation was computed. [2020-10-29 10:00:48,619 INFO L274 CegarLoopResult]: For program point L42-1(lines 42 43) no Hoare annotation was computed. [2020-10-29 10:00:48,619 INFO L270 CegarLoopResult]: At program point L42-3(lines 42 43) the Hoare annotation is: (and (<= main_~found~0 1) (<= 0 main_~found~0)) [2020-10-29 10:00:48,619 INFO L274 CegarLoopResult]: For program point L42-4(lines 42 43) no Hoare annotation was computed. [2020-10-29 10:00:48,620 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 28 72) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-29 10:00:48,620 INFO L274 CegarLoopResult]: For program point L55(lines 55 64) no Hoare annotation was computed. [2020-10-29 10:00:48,620 INFO L270 CegarLoopResult]: At program point L55-2(lines 53 65) the Hoare annotation is: (and (<= main_~found~0 1) (<= 0 main_~found~0)) [2020-10-29 10:00:48,620 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-29 10:00:48,620 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-10-29 10:00:48,621 INFO L274 CegarLoopResult]: For program point L19-2(lines 18 23) no Hoare annotation was computed. [2020-10-29 10:00:48,621 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 18 23) the Hoare annotation is: true [2020-10-29 10:00:48,621 INFO L274 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 18 23) no Hoare annotation was computed. [2020-10-29 10:00:48,621 INFO L270 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (not (<= 1 |__VERIFIER_assert_#in~cond|)) [2020-10-29 10:00:48,621 INFO L274 CegarLoopResult]: For program point L19(lines 19 21) no Hoare annotation was computed. [2020-10-29 10:00:48,621 INFO L274 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-10-29 10:00:48,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 10:00:48 BoogieIcfgContainer [2020-10-29 10:00:48,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 10:00:48,644 INFO L168 Benchmark]: Toolchain (without parser) took 3010.89 ms. Allocated memory was 162.5 MB in the beginning and 205.5 MB in the end (delta: 43.0 MB). Free memory was 137.3 MB in the beginning and 149.5 MB in the end (delta: -12.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 8.0 GB. [2020-10-29 10:00:48,645 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 162.5 MB. Free memory is still 134.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 10:00:48,646 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.55 ms. Allocated memory is still 162.5 MB. Free memory was 136.6 MB in the beginning and 126.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-29 10:00:48,647 INFO L168 Benchmark]: Boogie Preprocessor took 47.83 ms. Allocated memory is still 162.5 MB. Free memory was 126.6 MB in the beginning and 124.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-29 10:00:48,648 INFO L168 Benchmark]: RCFGBuilder took 688.50 ms. Allocated memory is still 162.5 MB. Free memory was 124.7 MB in the beginning and 141.8 MB in the end (delta: -17.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-29 10:00:48,649 INFO L168 Benchmark]: TraceAbstraction took 1918.32 ms. Allocated memory was 162.5 MB in the beginning and 205.5 MB in the end (delta: 43.0 MB). Free memory was 141.2 MB in the beginning and 149.5 MB in the end (delta: -8.2 MB). Peak memory consumption was 35.3 MB. Max. memory is 8.0 GB. [2020-10-29 10:00:48,653 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 162.5 MB. Free memory is still 134.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 342.55 ms. Allocated memory is still 162.5 MB. Free memory was 136.6 MB in the beginning and 126.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.83 ms. Allocated memory is still 162.5 MB. Free memory was 126.6 MB in the beginning and 124.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 688.50 ms. Allocated memory is still 162.5 MB. Free memory was 124.7 MB in the beginning and 141.8 MB in the end (delta: -17.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1918.32 ms. Allocated memory was 162.5 MB in the beginning and 205.5 MB in the end (delta: 43.0 MB). Free memory was 141.2 MB in the beginning and 149.5 MB in the end (delta: -8.2 MB). Peak memory consumption was 35.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 46]: Loop Invariant Derived loop invariant: found <= 1 && 0 <= found - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: found <= 1 && 0 <= found - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: found <= 1 && 0 <= found - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: found <= 1 && 0 <= found - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: found <= 1 && 0 <= found - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 35 SDslu, 80 SDs, 0 SdLazy, 46 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 15 PreInvPairs, 20 NumberOfFragments, 82 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 50 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 1311 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...