/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_b3_o2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:34:55,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:34:55,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:34:55,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:34:55,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:34:55,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:34:55,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:34:55,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:34:55,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:34:55,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:34:55,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:34:55,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:34:55,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:34:55,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:34:55,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:34:55,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:34:55,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:34:55,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:34:55,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:34:55,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:34:55,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:34:55,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:34:55,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:34:55,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:34:55,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 16:34:55,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:34:55,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:34:55,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:34:55,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 16:34:55,870 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:34:55,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:34:55,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:34:55,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:34:55,872 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:34:55,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:34:55,873 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:34:55,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:34:55,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:34:55,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:34:55,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:34:55,874 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:34:55,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:34:55,874 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:34:55,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:34:55,875 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:34:55,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:34:55,875 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:34:55,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:34:55,876 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:34:55,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:34:55,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:34:55,876 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:34:55,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:34:55,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:34:55,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:34:55,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:34:55,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:34:55,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:34:55,877 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:34:56,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:34:56,238 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:34:56,244 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:34:56,246 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:34:56,246 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:34:56,248 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_b3_o2-2.c [2020-08-22 16:34:56,325 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bec867db5/fed0e2c79a8947dea7c7118149389a1d/FLAGf10b7f4c7 [2020-08-22 16:34:56,802 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:34:56,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id_b3_o2-2.c [2020-08-22 16:34:56,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bec867db5/fed0e2c79a8947dea7c7118149389a1d/FLAGf10b7f4c7 [2020-08-22 16:34:57,180 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bec867db5/fed0e2c79a8947dea7c7118149389a1d [2020-08-22 16:34:57,191 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:34:57,193 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:34:57,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:34:57,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:34:57,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:34:57,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:34:57" (1/1) ... [2020-08-22 16:34:57,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed360c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:57, skipping insertion in model container [2020-08-22 16:34:57,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:34:57" (1/1) ... [2020-08-22 16:34:57,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:34:57,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:34:57,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:34:57,405 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:34:57,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:34:57,437 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:34:57,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:57 WrapperNode [2020-08-22 16:34:57,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:34:57,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:34:57,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:34:57,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:34:57,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:57" (1/1) ... [2020-08-22 16:34:57,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:57" (1/1) ... [2020-08-22 16:34:57,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:57" (1/1) ... [2020-08-22 16:34:57,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:57" (1/1) ... [2020-08-22 16:34:57,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:57" (1/1) ... [2020-08-22 16:34:57,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:57" (1/1) ... [2020-08-22 16:34:57,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:57" (1/1) ... [2020-08-22 16:34:57,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:34:57,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:34:57,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:34:57,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:34:57,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-08-22 16:34:57,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:34:57,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:34:57,611 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-08-22 16:34:57,611 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:34:57,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:34:57,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:34:57,611 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-08-22 16:34:57,611 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:34:57,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:34:57,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:34:57,805 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:34:57,805 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 16:34:57,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:34:57 BoogieIcfgContainer [2020-08-22 16:34:57,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:34:57,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:34:57,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:34:57,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:34:57,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:34:57" (1/3) ... [2020-08-22 16:34:57,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703f3aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:34:57, skipping insertion in model container [2020-08-22 16:34:57,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:34:57" (2/3) ... [2020-08-22 16:34:57,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703f3aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:34:57, skipping insertion in model container [2020-08-22 16:34:57,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:34:57" (3/3) ... [2020-08-22 16:34:57,820 INFO L109 eAbstractionObserver]: Analyzing ICFG id_b3_o2-2.c [2020-08-22 16:34:57,836 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:34:57,849 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:34:57,865 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:34:57,898 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:34:57,898 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:34:57,898 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:34:57,898 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:34:57,899 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:34:57,899 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:34:57,899 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:34:57,899 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:34:57,935 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-08-22 16:34:57,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-22 16:34:57,945 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:34:57,946 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:34:57,947 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:34:57,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:34:57,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1250208381, now seen corresponding path program 1 times [2020-08-22 16:34:57,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:34:57,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593597861] [2020-08-22 16:34:57,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:34:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:34:58,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:34:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:34:58,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 16:34:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:34:58,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:34:58,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593597861] [2020-08-22 16:34:58,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:34:58,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 16:34:58,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608103590] [2020-08-22 16:34:58,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 16:34:58,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:34:58,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 16:34:58,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:34:58,258 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 5 states. [2020-08-22 16:34:58,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:34:58,313 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2020-08-22 16:34:58,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 16:34:58,316 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-08-22 16:34:58,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:34:58,326 INFO L225 Difference]: With dead ends: 31 [2020-08-22 16:34:58,327 INFO L226 Difference]: Without dead ends: 19 [2020-08-22 16:34:58,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:34:58,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-08-22 16:34:58,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-08-22 16:34:58,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-08-22 16:34:58,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2020-08-22 16:34:58,372 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 13 [2020-08-22 16:34:58,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:34:58,372 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2020-08-22 16:34:58,373 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 16:34:58,373 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2020-08-22 16:34:58,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-22 16:34:58,375 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:34:58,375 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:34:58,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:34:58,376 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:34:58,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:34:58,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1951994857, now seen corresponding path program 1 times [2020-08-22 16:34:58,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:34:58,377 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980500631] [2020-08-22 16:34:58,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:34:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:34:58,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:34:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:34:58,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 16:34:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:34:58,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:34:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:34:58,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-22 16:34:58,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980500631] [2020-08-22 16:34:58,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:34:58,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 16:34:58,494 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182311746] [2020-08-22 16:34:58,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 16:34:58,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:34:58,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 16:34:58,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:34:58,497 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 5 states. [2020-08-22 16:34:58,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:34:58,518 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2020-08-22 16:34:58,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 16:34:58,519 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-08-22 16:34:58,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:34:58,520 INFO L225 Difference]: With dead ends: 25 [2020-08-22 16:34:58,520 INFO L226 Difference]: Without dead ends: 21 [2020-08-22 16:34:58,522 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:34:58,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-08-22 16:34:58,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2020-08-22 16:34:58,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-08-22 16:34:58,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2020-08-22 16:34:58,528 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 20 [2020-08-22 16:34:58,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:34:58,529 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2020-08-22 16:34:58,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 16:34:58,529 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2020-08-22 16:34:58,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-22 16:34:58,533 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:34:58,533 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:34:58,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 16:34:58,534 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:34:58,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:34:58,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1923365706, now seen corresponding path program 1 times [2020-08-22 16:34:58,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:34:58,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806805230] [2020-08-22 16:34:58,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:34:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:34:58,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:34:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:34:58,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 16:34:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:34:58,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 16:34:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:34:58,734 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-22 16:34:58,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806805230] [2020-08-22 16:34:58,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880828783] [2020-08-22 16:34:58,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:34:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:34:58,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2020-08-22 16:34:58,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:34:58,868 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-22 16:34:58,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:34:58,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2020-08-22 16:34:58,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426019095] [2020-08-22 16:34:58,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 16:34:58,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:34:58,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 16:34:58,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-08-22 16:34:58,871 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 9 states. [2020-08-22 16:34:58,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:34:58,923 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2020-08-22 16:34:58,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 16:34:58,924 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-08-22 16:34:58,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:34:58,925 INFO L225 Difference]: With dead ends: 37 [2020-08-22 16:34:58,926 INFO L226 Difference]: Without dead ends: 25 [2020-08-22 16:34:58,927 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-22 16:34:58,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-08-22 16:34:58,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2020-08-22 16:34:58,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-08-22 16:34:58,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2020-08-22 16:34:58,934 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 20 [2020-08-22 16:34:58,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:34:58,934 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2020-08-22 16:34:58,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 16:34:58,935 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2020-08-22 16:34:58,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-22 16:34:58,936 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:34:58,936 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:34:59,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-08-22 16:34:59,151 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:34:59,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:34:59,151 INFO L82 PathProgramCache]: Analyzing trace with hash 405472645, now seen corresponding path program 2 times [2020-08-22 16:34:59,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:34:59,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599020289] [2020-08-22 16:34:59,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:34:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:34:59,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:34:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:34:59,248 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:34:59,270 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-08-22 16:34:59,270 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 16:34:59,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 16:34:59,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:34:59 BoogieIcfgContainer [2020-08-22 16:34:59,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:34:59,318 INFO L168 Benchmark]: Toolchain (without parser) took 2123.38 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 103.9 MB in the beginning and 102.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 57.4 MB. Max. memory is 7.1 GB. [2020-08-22 16:34:59,319 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 16:34:59,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.05 ms. Allocated memory is still 147.8 MB. Free memory was 103.7 MB in the beginning and 94.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-08-22 16:34:59,323 INFO L168 Benchmark]: Boogie Preprocessor took 113.63 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 94.4 MB in the beginning and 183.0 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-08-22 16:34:59,326 INFO L168 Benchmark]: RCFGBuilder took 257.73 ms. Allocated memory is still 203.9 MB. Free memory was 183.0 MB in the beginning and 170.6 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2020-08-22 16:34:59,332 INFO L168 Benchmark]: TraceAbstraction took 1502.44 ms. Allocated memory is still 203.9 MB. Free memory was 170.6 MB in the beginning and 102.7 MB in the end (delta: 67.9 MB). Peak memory consumption was 67.9 MB. Max. memory is 7.1 GB. [2020-08-22 16:34:59,344 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 147.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 244.05 ms. Allocated memory is still 147.8 MB. Free memory was 103.7 MB in the beginning and 94.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.63 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 94.4 MB in the beginning and 183.0 MB in the end (delta: -88.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 257.73 ms. Allocated memory is still 203.9 MB. Free memory was 183.0 MB in the beginning and 170.6 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1502.44 ms. Allocated memory is still 203.9 MB. Free memory was 170.6 MB in the beginning and 102.7 MB in the end (delta: 67.9 MB). Peak memory consumption was 67.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] int input = __VERIFIER_nondet_int(); [L13] CALL, EXPR id(input) VAL [\old(x)=2] [L5] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L6] CALL, EXPR id((unsigned int)x-1) VAL [\old(x)=1] [L5] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L6] CALL, EXPR id((unsigned int)x-1) VAL [\old(x)=0] [L5] COND TRUE x==0 [L5] return 0; VAL [\old(x)=0, \result=0, x=0] [L6] RET, EXPR id((unsigned int)x-1) VAL [\old(x)=1, id((unsigned int)x-1)=0, x=1] [L6] int ret = id((unsigned int)x-1) + 1; [L7] COND FALSE !(ret > 3) [L8] return ret; VAL [\old(x)=1, \result=1, ret=1, x=1] [L6] RET, EXPR id((unsigned int)x-1) VAL [\old(x)=2, id((unsigned int)x-1)=1, x=2] [L6] int ret = id((unsigned int)x-1) + 1; [L7] COND FALSE !(ret > 3) [L8] return ret; VAL [\old(x)=2, \result=2, ret=2, x=2] [L13] RET, EXPR id(input) VAL [id(input)=2, input=2] [L13] int result = id(input); [L14] COND TRUE result == 2 VAL [input=2, result=2] [L15] __VERIFIER_error() VAL [input=2, result=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 4 SDslu, 197 SDs, 0 SdLazy, 41 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=3, 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 2107 SizeOfPredicates, 2 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 8/12 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...