/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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 SingleStatement --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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test16.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:58:09,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:58:09,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:58:09,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:58:09,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:58:09,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:58:09,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:58:09,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:58:09,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:58:09,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:58:09,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:58:09,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:58:09,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:58:09,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:58:09,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:58:09,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:58:09,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:58:09,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:58:09,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:58:09,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:58:09,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:58:09,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:58:09,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:58:09,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:58:09,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:58:09,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:58:09,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:58:09,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:58:09,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:58:09,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-25 00:58:09,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:58:09,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:58:09,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:58:09,869 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 [2020-09-25 00:58:09,914 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:58:09,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:58:09,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:58:09,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:58:09,917 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:58:09,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:58:09,918 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:58:09,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:58:09,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:58:09,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:58:09,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:58:09,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:58:09,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:58:09,920 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:58:09,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:58:09,921 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:58:09,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:58:09,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:58:09,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:58:09,922 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:58:09,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:58:09,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:58:09,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:58:09,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:58:09,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:58:09,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:58:09,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:58:09,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:58:09,924 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:58:09,924 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> SingleStatement 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=DEEPEST;log-additional-information=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=DEEPEST;log-additional-information=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=DEEPEST;log-additional-information=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=DEEPEST;log-additional-information=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=DEEPEST;log-additional-information=true; [2020-09-25 00:58:10,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:58:10,405 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:58:10,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:58:10,412 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:58:10,412 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:58:10,413 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test16.c [2020-09-25 00:58:10,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9e74f2ea/3e2241d26a064e828201afc152f58e10/FLAGe9c58a879 [2020-09-25 00:58:11,025 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:58:11,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test16.c [2020-09-25 00:58:11,035 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9e74f2ea/3e2241d26a064e828201afc152f58e10/FLAGe9c58a879 [2020-09-25 00:58:11,364 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9e74f2ea/3e2241d26a064e828201afc152f58e10 [2020-09-25 00:58:11,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:58:11,384 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:58:11,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:58:11,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:58:11,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:58:11,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:58:11" (1/1) ... [2020-09-25 00:58:11,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22f7f464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:11, skipping insertion in model container [2020-09-25 00:58:11,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:58:11" (1/1) ... [2020-09-25 00:58:11,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:58:11,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:58:11,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:58:11,664 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:58:11,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:58:11,705 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:58:11,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:11 WrapperNode [2020-09-25 00:58:11,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:58:11,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:58:11,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:58:11,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:58:11,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:11" (1/1) ... [2020-09-25 00:58:11,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:11" (1/1) ... [2020-09-25 00:58:11,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:11" (1/1) ... [2020-09-25 00:58:11,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:11" (1/1) ... [2020-09-25 00:58:11,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:11" (1/1) ... [2020-09-25 00:58:11,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:11" (1/1) ... [2020-09-25 00:58:11,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:11" (1/1) ... [2020-09-25 00:58:11,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:58:11,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:58:11,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:58:11,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:58:11,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:11" (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 [2020-09-25 00:58:11,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:58:11,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:58:11,919 INFO L138 BoogieDeclarations]: Found implementation of procedure equal [2020-09-25 00:58:11,919 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:58:11,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:58:11,919 INFO L130 BoogieDeclarations]: Found specification of procedure equal [2020-09-25 00:58:11,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 00:58:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:58:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 00:58:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:58:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 00:58:11,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 00:58:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:58:11,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 00:58:12,212 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:58:12,212 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 00:58:12,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:58:12 BoogieIcfgContainer [2020-09-25 00:58:12,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:58:12,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:58:12,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:58:12,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:58:12,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:58:11" (1/3) ... [2020-09-25 00:58:12,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43baa91e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:58:12, skipping insertion in model container [2020-09-25 00:58:12,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:58:11" (2/3) ... [2020-09-25 00:58:12,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43baa91e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:58:12, skipping insertion in model container [2020-09-25 00:58:12,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:58:12" (3/3) ... [2020-09-25 00:58:12,242 INFO L109 eAbstractionObserver]: Analyzing ICFG test16.c [2020-09-25 00:58:12,253 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:58:12,263 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:58:12,285 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:58:12,316 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:58:12,317 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:58:12,317 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:58:12,317 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:58:12,317 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:58:12,317 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:58:12,317 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:58:12,318 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:58:12,343 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-09-25 00:58:12,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-25 00:58:12,352 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:58:12,353 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:58:12,354 INFO L427 AbstractCegarLoop]: === Iteration 1 === [equalErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:58:12,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:58:12,360 INFO L82 PathProgramCache]: Analyzing trace with hash -2010514145, now seen corresponding path program 1 times [2020-09-25 00:58:12,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:58:12,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2128388217] [2020-09-25 00:58:12,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:58:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:12,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:13,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:13,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 00:58:13,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:58:13,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 721 [2020-09-25 00:58:13,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:13,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:58:13,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 00:58:13,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 00:58:13,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:58:14,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:58:14,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:58:14,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:58:14,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:58:14,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 00:58:14,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:58:14,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 00:58:14,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:58:14,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:58:14,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:58:14,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:58:14,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:58:14,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:58:14,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2128388217] [2020-09-25 00:58:14,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:58:14,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 00:58:14,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923551324] [2020-09-25 00:58:14,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 00:58:14,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:58:14,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 00:58:14,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:58:14,195 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 12 states. [2020-09-25 00:58:14,734 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2020-09-25 00:58:14,867 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 20 [2020-09-25 00:58:15,090 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2020-09-25 00:58:15,344 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2020-09-25 00:58:15,550 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2020-09-25 00:58:15,771 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2020-09-25 00:58:16,033 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2020-09-25 00:58:16,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:58:16,100 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions. [2020-09-25 00:58:16,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 00:58:16,102 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2020-09-25 00:58:16,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:58:16,112 INFO L225 Difference]: With dead ends: 46 [2020-09-25 00:58:16,112 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 00:58:16,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2020-09-25 00:58:16,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 00:58:16,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 00:58:16,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 00:58:16,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 00:58:16,151 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-09-25 00:58:16,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:58:16,152 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 00:58:16,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 00:58:16,152 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 00:58:16,152 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 00:58:16,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:58:16,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 00:58:16,319 INFO L268 CegarLoopResult]: For program point L5-4(line 5) no Hoare annotation was computed. [2020-09-25 00:58:16,319 INFO L268 CegarLoopResult]: For program point L5-5(line 5) no Hoare annotation was computed. [2020-09-25 00:58:16,320 INFO L268 CegarLoopResult]: For program point L5-6(line 5) no Hoare annotation was computed. [2020-09-25 00:58:16,320 INFO L268 CegarLoopResult]: For program point equalEXIT(lines 4 12) no Hoare annotation was computed. [2020-09-25 00:58:16,320 INFO L271 CegarLoopResult]: At program point equalENTRY(lines 4 12) the Hoare annotation is: true [2020-09-25 00:58:16,320 INFO L268 CegarLoopResult]: For program point equalFINAL(lines 4 12) no Hoare annotation was computed. [2020-09-25 00:58:16,321 INFO L268 CegarLoopResult]: For program point equalErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2020-09-25 00:58:16,321 INFO L264 CegarLoopResult]: At program point L6(lines 4 12) the Hoare annotation is: (or (not (= (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|) (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|))) (not (= |~#a~0.offset| ~pa~0.offset)) (not (= ~pb~0.offset |~#b~0.offset|)) (not (= ~pb~0.base |~#b~0.base|)) (not (= |~#a~0.base| ~pa~0.base)) (not (= (select (select |#memory_int| |equal_#in~a.base|) |equal_#in~a.offset|) (select (select |#memory_int| |equal_#in~b.base|) |equal_#in~b.offset|)))) [2020-09-25 00:58:16,321 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 00:58:16,321 INFO L268 CegarLoopResult]: For program point L4(lines 4 12) no Hoare annotation was computed. [2020-09-25 00:58:16,322 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-09-25 00:58:16,322 INFO L268 CegarLoopResult]: For program point L5-2(lines 5 7) no Hoare annotation was computed. [2020-09-25 00:58:16,322 INFO L268 CegarLoopResult]: For program point L5-3(line 5) no Hoare annotation was computed. [2020-09-25 00:58:16,322 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 00:58:16,322 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 00:58:16,322 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 00:58:16,323 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 00:58:16,323 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 00:58:16,323 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-09-25 00:58:16,323 INFO L268 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed. [2020-09-25 00:58:16,323 INFO L268 CegarLoopResult]: For program point L14-3(line 14) no Hoare annotation was computed. [2020-09-25 00:58:16,324 INFO L268 CegarLoopResult]: For program point L14-4(line 14) no Hoare annotation was computed. [2020-09-25 00:58:16,324 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pa~0.base |old(~pa~0.base)|) (= ~pb~0.base |old(~pb~0.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= ~pa~0.offset |old(~pa~0.offset)|) (= |old(#length)| |#length|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= ~pb~0.offset |old(~pb~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-25 00:58:16,324 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 00:58:16,324 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 00:58:16,325 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 00:58:16,325 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 00:58:16,325 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 00:58:16,325 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 17 28) the Hoare annotation is: (and (= ~pa~0.base |old(~pa~0.base)|) (= |old(~pb~0.base)| ~pb~0.base) (= |old(~pa~0.offset)| ~pa~0.offset) (= |old(~pb~0.offset)| ~pb~0.offset)) [2020-09-25 00:58:16,325 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 17 28) no Hoare annotation was computed. [2020-09-25 00:58:16,326 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (and (= |~#b~0.base| ~pb~0.base) (= ~pa~0.base |~#a~0.base|) (= ~pa~0.offset |~#a~0.offset|) (= (select (select |#memory_int| |~#a~0.base|) |~#a~0.offset|) (select (select |#memory_int| |~#b~0.base|) |~#b~0.offset|)) (= ~pb~0.offset |~#b~0.offset|)) [2020-09-25 00:58:16,326 INFO L268 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-09-25 00:58:16,326 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 17 28) no Hoare annotation was computed. [2020-09-25 00:58:16,326 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 00:58:16,326 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-09-25 00:58:16,327 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 00:58:16,327 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-25 00:58:16,327 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-25 00:58:16,327 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 00:58:16,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 00:58:16,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 00:58:16,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 00:58:16,344 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 00:58:16,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 00:58:16,352 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 00:58:16,352 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 00:58:16,352 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 00:58:16,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:58:16 BoogieIcfgContainer [2020-09-25 00:58:16,356 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:58:16,359 INFO L168 Benchmark]: Toolchain (without parser) took 4978.49 ms. Allocated memory was 140.5 MB in the beginning and 246.9 MB in the end (delta: 106.4 MB). Free memory was 102.4 MB in the beginning and 183.9 MB in the end (delta: -81.5 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-09-25 00:58:16,360 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 00:58:16,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.26 ms. Allocated memory is still 140.5 MB. Free memory was 101.8 MB in the beginning and 92.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-09-25 00:58:16,362 INFO L168 Benchmark]: Boogie Preprocessor took 120.50 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 92.2 MB in the beginning and 182.5 MB in the end (delta: -90.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-09-25 00:58:16,363 INFO L168 Benchmark]: RCFGBuilder took 397.81 ms. Allocated memory is still 203.9 MB. Free memory was 182.5 MB in the beginning and 166.3 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2020-09-25 00:58:16,364 INFO L168 Benchmark]: TraceAbstraction took 4128.95 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 165.6 MB in the beginning and 183.9 MB in the end (delta: -18.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-09-25 00:58:16,369 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 321.26 ms. Allocated memory is still 140.5 MB. Free memory was 101.8 MB in the beginning and 92.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.50 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 92.2 MB in the beginning and 182.5 MB in the end (delta: -90.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 397.81 ms. Allocated memory is still 203.9 MB. Free memory was 182.5 MB in the beginning and 166.3 MB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4128.95 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 165.6 MB in the beginning and 183.9 MB in the end (delta: -18.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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: 4]: Loop Invariant [2020-09-25 00:58:16,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 00:58:16,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 00:58:16,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 00:58:16,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 00:58:16,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 00:58:16,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 00:58:16,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 00:58:16,382 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((!(unknown-#memory_int-unknown[b][b] == unknown-#memory_int-unknown[a][a]) || !(a == pa)) || !(pb == b)) || !(pb == b)) || !(a == pa)) || !(unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[b][b]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 73 SDslu, 125 SDs, 0 SdLazy, 126 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 118 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 135 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 8764 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...