/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/nec20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:41:51,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:41:51,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:41:51,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:41:51,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:41:51,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:41:51,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:41:51,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:41:51,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:41:51,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:41:51,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:41:51,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:41:51,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:41:51,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:41:51,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:41:51,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:41:51,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:41:51,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:41:51,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:41:51,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:41:51,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:41:51,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:41:51,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:41:51,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:41:51,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:41:51,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:41:51,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:41:51,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:41:51,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:41:51,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:41:51,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:41:51,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:41:51,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:41:51,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:41:51,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:41:51,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:41:51,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:41:51,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:41:51,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:41:51,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:41:51,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:41:51,155 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 [2020-09-24 20:41:51,202 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:41:51,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:41:51,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:41:51,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:41:51,205 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:41:51,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:41:51,206 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:41:51,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:41:51,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:41:51,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:41:51,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:41:51,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:41:51,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:41:51,208 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:41:51,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:41:51,209 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:41:51,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:41:51,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:41:51,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:41:51,209 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:41:51,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:41:51,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:41:51,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:41:51,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:41:51,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:41:51,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:41:51,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:41:51,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:41:51,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:41:51,211 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:41:51,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:41:51,699 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:41:51,704 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:41:51,706 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:41:51,706 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:41:51,707 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/nec20.c [2020-09-24 20:41:51,796 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/374194c71/0e9201be59344185b1d1c3454d96142d/FLAG9f0d315c3 [2020-09-24 20:41:52,325 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:41:52,326 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/nec20.c [2020-09-24 20:41:52,334 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/374194c71/0e9201be59344185b1d1c3454d96142d/FLAG9f0d315c3 [2020-09-24 20:41:52,662 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/374194c71/0e9201be59344185b1d1c3454d96142d [2020-09-24 20:41:52,674 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:41:52,681 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:41:52,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:41:52,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:41:52,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:41:52,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:41:52" (1/1) ... [2020-09-24 20:41:52,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c489c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:52, skipping insertion in model container [2020-09-24 20:41:52,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:41:52" (1/1) ... [2020-09-24 20:41:52,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:41:52,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:41:52,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:41:52,940 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:41:52,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:41:52,978 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:41:52,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:52 WrapperNode [2020-09-24 20:41:52,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:41:52,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:41:52,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:41:52,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:41:52,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:52" (1/1) ... [2020-09-24 20:41:52,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:52" (1/1) ... [2020-09-24 20:41:53,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:52" (1/1) ... [2020-09-24 20:41:53,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:52" (1/1) ... [2020-09-24 20:41:53,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:52" (1/1) ... [2020-09-24 20:41:53,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:52" (1/1) ... [2020-09-24 20:41:53,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:52" (1/1) ... [2020-09-24 20:41:53,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:41:53,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:41:53,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:41:53,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:41:53,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:52" (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 [2020-09-24 20:41:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:41:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:41:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 20:41:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:41:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:41:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 20:41:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 20:41:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 20:41:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:41:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:41:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:41:53,425 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:41:53,425 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 20:41:53,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:41:53 BoogieIcfgContainer [2020-09-24 20:41:53,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:41:53,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:41:53,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:41:53,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:41:53,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:41:52" (1/3) ... [2020-09-24 20:41:53,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327d7cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:41:53, skipping insertion in model container [2020-09-24 20:41:53,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:41:52" (2/3) ... [2020-09-24 20:41:53,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327d7cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:41:53, skipping insertion in model container [2020-09-24 20:41:53,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:41:53" (3/3) ... [2020-09-24 20:41:53,440 INFO L109 eAbstractionObserver]: Analyzing ICFG nec20.c [2020-09-24 20:41:53,459 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:41:53,482 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:41:53,506 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:41:53,531 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:41:53,531 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:41:53,531 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:41:53,532 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:41:53,532 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:41:53,532 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:41:53,532 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:41:53,532 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:41:53,552 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-09-24 20:41:53,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-24 20:41:53,559 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:53,560 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] [2020-09-24 20:41:53,560 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:53,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:53,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1806400052, now seen corresponding path program 1 times [2020-09-24 20:41:53,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:53,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865496408] [2020-09-24 20:41:53,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:53,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:53,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:53,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-24 20:41:53,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:53,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-09-24 20:41:53,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:53,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:41:53,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 20:41:53,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:41:53,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:41:54,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:41:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:54,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:54,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:54,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:41:54,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:54,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:41:54,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:54,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:54,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:54,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:54,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:41:54,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:41:54,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [865496408] [2020-09-24 20:41:54,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:41:54,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 20:41:54,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496336671] [2020-09-24 20:41:54,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 20:41:54,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:41:54,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 20:41:54,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 20:41:54,082 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 4 states. [2020-09-24 20:41:54,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:41:54,250 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2020-09-24 20:41:54,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 20:41:54,252 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-09-24 20:41:54,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:41:54,263 INFO L225 Difference]: With dead ends: 65 [2020-09-24 20:41:54,264 INFO L226 Difference]: Without dead ends: 32 [2020-09-24 20:41:54,268 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:41:54,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-24 20:41:54,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-09-24 20:41:54,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-24 20:41:54,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-24 20:41:54,314 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 23 [2020-09-24 20:41:54,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:41:54,314 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-24 20:41:54,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 20:41:54,315 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-24 20:41:54,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-24 20:41:54,316 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:54,316 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] [2020-09-24 20:41:54,317 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:41:54,317 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:54,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:54,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1269377587, now seen corresponding path program 1 times [2020-09-24 20:41:54,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:54,318 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [766877106] [2020-09-24 20:41:54,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:54,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:54,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:54,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 20:41:54,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:54,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-24 20:41:54,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:54,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:41:54,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 20:41:54,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-24 20:41:54,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:41:54,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:41:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:41:54,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:41:54,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:41:54,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:41:54,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:41:54,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:41:54,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:41:54,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:41:54,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:41:54,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:41:54,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:41:54,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:41:54,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [766877106] [2020-09-24 20:41:54,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:41:54,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 20:41:54,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581257029] [2020-09-24 20:41:54,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:41:54,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:41:54,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:41:54,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:41:54,812 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 7 states. [2020-09-24 20:41:55,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:41:55,026 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2020-09-24 20:41:55,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 20:41:55,027 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2020-09-24 20:41:55,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:41:55,030 INFO L225 Difference]: With dead ends: 55 [2020-09-24 20:41:55,031 INFO L226 Difference]: Without dead ends: 49 [2020-09-24 20:41:55,032 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:41:55,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-09-24 20:41:55,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 39. [2020-09-24 20:41:55,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-09-24 20:41:55,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-09-24 20:41:55,042 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 28 [2020-09-24 20:41:55,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:41:55,043 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-09-24 20:41:55,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:41:55,043 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-09-24 20:41:55,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-24 20:41:55,044 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:41:55,044 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] [2020-09-24 20:41:55,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:41:55,045 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:41:55,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:41:55,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1258948973, now seen corresponding path program 1 times [2020-09-24 20:41:55,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:41:55,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394396356] [2020-09-24 20:41:55,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:41:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 20:41:55,064 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 20:41:55,064 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 20:41:55,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:41:55,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 08:41:55 BoogieIcfgContainer [2020-09-24 20:41:55,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 20:41:55,098 INFO L168 Benchmark]: Toolchain (without parser) took 2418.26 ms. Allocated memory was 143.1 MB in the beginning and 234.4 MB in the end (delta: 91.2 MB). Free memory was 102.4 MB in the beginning and 176.8 MB in the end (delta: -74.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:55,099 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 143.1 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 20:41:55,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.93 ms. Allocated memory is still 143.1 MB. Free memory was 101.7 MB in the beginning and 92.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:55,101 INFO L168 Benchmark]: Boogie Preprocessor took 119.94 ms. Allocated memory was 143.1 MB in the beginning and 204.5 MB in the end (delta: 61.3 MB). Free memory was 92.1 MB in the beginning and 182.5 MB in the end (delta: -90.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:55,103 INFO L168 Benchmark]: RCFGBuilder took 331.38 ms. Allocated memory is still 204.5 MB. Free memory was 182.5 MB in the beginning and 168.4 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:55,105 INFO L168 Benchmark]: TraceAbstraction took 1660.69 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 168.4 MB in the beginning and 176.8 MB in the end (delta: -8.4 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-09-24 20:41:55,114 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 143.1 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 296.93 ms. Allocated memory is still 143.1 MB. Free memory was 101.7 MB in the beginning and 92.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.94 ms. Allocated memory was 143.1 MB in the beginning and 204.5 MB in the end (delta: 61.3 MB). Free memory was 92.1 MB in the beginning and 182.5 MB in the end (delta: -90.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 331.38 ms. Allocated memory is still 204.5 MB. Free memory was 182.5 MB in the beginning and 168.4 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1660.69 ms. Allocated memory was 204.5 MB in the beginning and 234.4 MB in the end (delta: 29.9 MB). Free memory was 168.4 MB in the beginning and 176.8 MB in the end (delta: -8.4 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] int b; [L13] _Bool k=__VERIFIER_nondet_bool(); [L14] unsigned int i,n,j; [L15] int a[1025]; [L17] COND TRUE \read(k) [L18] n=0 [L23] i=0 [L24] j=__VERIFIER_nondet_uint() [L25] COND FALSE !(j > 10000) [L28] COND TRUE i <= n [L29] i++ [L30] j= j +2 [L28] COND FALSE !(i <= n) [L33] a[i]=0 [L34] CALL __VERIFIER_assert(j<1025) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 66 SDtfs, 102 SDslu, 27 SDs, 0 SdLazy, 120 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 2 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 4945 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 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 incorrect! Received shutdown request...