/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 --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 interpolation-heuristic=FIRST --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/test29-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:23:52,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:23:52,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:23:52,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:23:52,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:23:52,771 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:23:52,773 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:23:52,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:23:52,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:23:52,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:23:52,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:23:52,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:23:52,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:23:52,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:23:52,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:23:52,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:23:52,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:23:52,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:23:52,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:23:52,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:23:52,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:23:52,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:23:52,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:23:52,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:23:52,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:23:52,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:23:52,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:23:52,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:23:52,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:23:52,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-21 11:23:52,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:23:52,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:23:52,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:23:52,830 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 [2020-09-21 11:23:52,880 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:23:52,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:23:52,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:23:52,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:23:52,883 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:23:52,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:23:52,884 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:23:52,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:23:52,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:23:52,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:23:52,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:23:52,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:23:52,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:23:52,886 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:23:52,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:23:52,887 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:23:52,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:23:52,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:23:52,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:23:52,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:23:52,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:23:52,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:23:52,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:23:52,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:23:52,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:23:52,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:23:52,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:23:52,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:23:52,890 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:23:52,890 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.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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:23:53,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:23:53,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:23:53,427 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:23:53,429 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:23:53,430 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:23:53,431 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test29-1.c [2020-09-21 11:23:53,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4dd6200cb/e4abb87fd9fa4f189dd7c6edd125c8e3/FLAGd98473dad [2020-09-21 11:23:54,051 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:23:54,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test29-1.c [2020-09-21 11:23:54,060 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4dd6200cb/e4abb87fd9fa4f189dd7c6edd125c8e3/FLAGd98473dad [2020-09-21 11:23:54,379 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4dd6200cb/e4abb87fd9fa4f189dd7c6edd125c8e3 [2020-09-21 11:23:54,394 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:23:54,401 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:23:54,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:23:54,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:23:54,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:23:54,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:23:54" (1/1) ... [2020-09-21 11:23:54,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35de7d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:54, skipping insertion in model container [2020-09-21 11:23:54,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:23:54" (1/1) ... [2020-09-21 11:23:54,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:23:54,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:23:54,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:23:54,665 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:23:54,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:23:54,706 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:23:54,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:54 WrapperNode [2020-09-21 11:23:54,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:23:54,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:23:54,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:23:54,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:23:54,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:54" (1/1) ... [2020-09-21 11:23:54,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:54" (1/1) ... [2020-09-21 11:23:54,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:54" (1/1) ... [2020-09-21 11:23:54,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:54" (1/1) ... [2020-09-21 11:23:54,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:54" (1/1) ... [2020-09-21 11:23:54,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:54" (1/1) ... [2020-09-21 11:23:54,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:54" (1/1) ... [2020-09-21 11:23:54,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:23:54,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:23:54,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:23:54,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:23:54,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:54" (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 [2020-09-21 11:23:54,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:23:54,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:23:54,906 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:23:54,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:23:54,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:23:54,907 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:23:54,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:23:54,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:23:54,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:23:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:23:54,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:23:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:23:55,157 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:23:55,158 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-21 11:23:55,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:23:55 BoogieIcfgContainer [2020-09-21 11:23:55,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:23:55,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:23:55,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:23:55,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:23:55,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:23:54" (1/3) ... [2020-09-21 11:23:55,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546542b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:23:55, skipping insertion in model container [2020-09-21 11:23:55,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:23:54" (2/3) ... [2020-09-21 11:23:55,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546542b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:23:55, skipping insertion in model container [2020-09-21 11:23:55,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:23:55" (3/3) ... [2020-09-21 11:23:55,173 INFO L109 eAbstractionObserver]: Analyzing ICFG test29-1.c [2020-09-21 11:23:55,185 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:23:55,195 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:23:55,234 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:23:55,276 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:23:55,276 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:23:55,276 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:23:55,277 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:23:55,277 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:23:55,277 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:23:55,277 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:23:55,277 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:23:55,302 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-09-21 11:23:55,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-21 11:23:55,310 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:55,312 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:55,313 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:55,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:55,320 INFO L82 PathProgramCache]: Analyzing trace with hash 668850033, now seen corresponding path program 1 times [2020-09-21 11:23:55,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:55,331 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494711143] [2020-09-21 11:23:55,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:55,507 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:55,508 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:55,508 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:55,508 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:55,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:23:55,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:55,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 11:23:55,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:55,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:23:55,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:23:55,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:23:55,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:55,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:55,628 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:55,629 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:55,629 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:55,629 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:55,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:55,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:55,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:23:55,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:55,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:55,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:55,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:55,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:55,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:23:55,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [494711143] [2020-09-21 11:23:55,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:23:55,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:23:55,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942657468] [2020-09-21 11:23:55,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:23:55,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:55,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:23:55,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:23:55,673 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2020-09-21 11:23:55,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:55,787 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2020-09-21 11:23:55,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:23:55,790 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-21 11:23:55,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:55,803 INFO L225 Difference]: With dead ends: 34 [2020-09-21 11:23:55,803 INFO L226 Difference]: Without dead ends: 21 [2020-09-21 11:23:55,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:23:55,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-09-21 11:23:55,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2020-09-21 11:23:55,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-09-21 11:23:55,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-09-21 11:23:55,855 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 13 [2020-09-21 11:23:55,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:55,855 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-09-21 11:23:55,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:23:55,856 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-09-21 11:23:55,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-21 11:23:55,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:55,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:55,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:23:55,857 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:55,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:55,858 INFO L82 PathProgramCache]: Analyzing trace with hash 667002991, now seen corresponding path program 1 times [2020-09-21 11:23:55,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:55,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082822765] [2020-09-21 11:23:55,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:55,913 FATAL L256 erpolLogProxyWrapper]: Difference in size: 2 [2020-09-21 11:23:55,913 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -2 [2020-09-21 11:23:55,913 FATAL L256 erpolLogProxyWrapper]: Difference in width: 2 [2020-09-21 11:23:55,914 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:55,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-21 11:23:55,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:55,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-21 11:23:55,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:55,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:23:55,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:23:55,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:23:55,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:55,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:23:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:23:55,971 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:23:55,972 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:23:55,972 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:23:55,972 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:23:55,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:23:55,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:23:55,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:23:55,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:23:55,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:23:55,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:23:55,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:23:55,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:23:55,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:23:55,982 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082822765] [2020-09-21 11:23:55,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:23:55,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:23:55,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540306510] [2020-09-21 11:23:55,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:23:55,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:23:55,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:23:55,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:23:55,986 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 5 states. [2020-09-21 11:23:56,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:23:56,047 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2020-09-21 11:23:56,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:23:56,048 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-21 11:23:56,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:23:56,049 INFO L225 Difference]: With dead ends: 22 [2020-09-21 11:23:56,049 INFO L226 Difference]: Without dead ends: 14 [2020-09-21 11:23:56,050 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:23:56,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-09-21 11:23:56,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-09-21 11:23:56,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-09-21 11:23:56,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2020-09-21 11:23:56,055 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 13 [2020-09-21 11:23:56,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:23:56,055 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2020-09-21 11:23:56,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:23:56,056 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2020-09-21 11:23:56,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-21 11:23:56,056 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:23:56,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:23:56,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:23:56,057 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:23:56,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:23:56,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1851109901, now seen corresponding path program 1 times [2020-09-21 11:23:56,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:23:56,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734505881] [2020-09-21 11:23:56,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:23:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:23:56,086 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:23:56,086 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:23:56,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:23:56,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:23:56 BoogieIcfgContainer [2020-09-21 11:23:56,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:23:56,116 INFO L168 Benchmark]: Toolchain (without parser) took 1718.55 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 102.9 MB in the beginning and 112.9 MB in the end (delta: -10.1 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:56,117 INFO L168 Benchmark]: CDTParser took 0.92 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:23:56,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.36 ms. Allocated memory is still 141.0 MB. Free memory was 102.2 MB in the beginning and 92.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:56,119 INFO L168 Benchmark]: Boogie Preprocessor took 116.07 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 92.0 MB in the beginning and 182.4 MB in the end (delta: -90.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:56,120 INFO L168 Benchmark]: RCFGBuilder took 338.53 ms. Allocated memory is still 203.9 MB. Free memory was 182.4 MB in the beginning and 167.8 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:56,121 INFO L168 Benchmark]: TraceAbstraction took 948.85 ms. Allocated memory is still 203.9 MB. Free memory was 167.2 MB in the beginning and 112.9 MB in the end (delta: 54.3 MB). Peak memory consumption was 54.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:23:56,125 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 305.36 ms. Allocated memory is still 141.0 MB. Free memory was 102.2 MB in the beginning and 92.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.07 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 92.0 MB in the beginning and 182.4 MB in the end (delta: -90.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 338.53 ms. Allocated memory is still 203.9 MB. Free memory was 182.4 MB in the beginning and 167.8 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 948.85 ms. Allocated memory is still 203.9 MB. Free memory was 167.2 MB in the beginning and 112.9 MB in the end (delta: 54.3 MB). Peak memory consumption was 54.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] union dummy d1, d2; [L14] int n = __VERIFIER_nondet_int(); [L15] EXPR n ? &d1 : &d2 [L15] union dummy *pd = n ? &d1 : &d2; [L16] d1.a = __VERIFIER_nondet_int() [L17] COND FALSE !(pd == &d1) [L20] pd->b = 0 [L22] pd == &d2 && d1.a != 0 [L22] EXPR d1.a [L22] pd == &d2 && d1.a != 0 [L22] COND TRUE pd == &d2 && d1.a != 0 [L28] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 26 SDtfs, 8 SDslu, 46 SDs, 0 SdLazy, 64 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 804 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 incorrect! Received shutdown request...