/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-regression/test_while_int.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:15:06,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:15:06,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:15:07,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:15:07,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:15:07,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:15:07,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:15:07,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:15:07,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:15:07,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:15:07,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:15:07,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:15:07,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:15:07,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:15:07,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:15:07,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:15:07,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:15:07,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:15:07,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:15:07,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:15:07,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:15:07,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:15:07,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:15:07,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:15:07,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:15:07,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:15:07,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:15:07,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:15:07,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:15:07,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-10-27 01:15:07,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:15:07,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:15:07,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:15:07,130 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 01:15:07,179 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:15:07,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:15:07,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:15:07,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:15:07,185 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:15:07,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:15:07,186 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:15:07,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:15:07,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:15:07,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:15:07,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:15:07,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:15:07,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:15:07,189 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:15:07,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:15:07,189 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:15:07,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:15:07,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:15:07,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:15:07,190 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:15:07,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:15:07,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:15:07,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:15:07,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:15:07,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:15:07,192 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:15:07,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:15:07,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:15:07,193 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:15:07,193 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:15:07,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:15:07,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:15:07,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:15:07,674 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:15:07,675 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:15:07,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_while_int.i [2020-10-27 01:15:07,762 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/190a12cb8/f0b9c947a5d946a386315018ab782eaa/FLAG394eb1420 [2020-10-27 01:15:08,377 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:15:08,377 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test_while_int.i [2020-10-27 01:15:08,387 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/190a12cb8/f0b9c947a5d946a386315018ab782eaa/FLAG394eb1420 [2020-10-27 01:15:08,782 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/190a12cb8/f0b9c947a5d946a386315018ab782eaa [2020-10-27 01:15:08,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:15:08,793 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:15:08,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:15:08,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:15:08,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:15:08,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:15:08" (1/1) ... [2020-10-27 01:15:08,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23822043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:08, skipping insertion in model container [2020-10-27 01:15:08,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:15:08" (1/1) ... [2020-10-27 01:15:08,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:15:08,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:15:09,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:15:09,019 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:15:09,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:15:09,055 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:15:09,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:09 WrapperNode [2020-10-27 01:15:09,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:15:09,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:15:09,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:15:09,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:15:09,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:09" (1/1) ... [2020-10-27 01:15:09,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:09" (1/1) ... [2020-10-27 01:15:09,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:09" (1/1) ... [2020-10-27 01:15:09,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:09" (1/1) ... [2020-10-27 01:15:09,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:09" (1/1) ... [2020-10-27 01:15:09,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:09" (1/1) ... [2020-10-27 01:15:09,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:09" (1/1) ... [2020-10-27 01:15:09,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:15:09,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:15:09,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:15:09,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:15:09,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:09" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:15:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:15:09,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:15:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:15:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-10-27 01:15:09,186 INFO L138 BoogieDeclarations]: Found implementation of procedure check_error [2020-10-27 01:15:09,187 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:15:09,187 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:15:09,187 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:15:09,187 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:15:09,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:15:09,189 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-10-27 01:15:09,189 INFO L130 BoogieDeclarations]: Found specification of procedure check_error [2020-10-27 01:15:09,189 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:15:09,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:15:09,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:15:09,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:15:09,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:15:09,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:15:09,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:15:09,481 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:15:09,482 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 01:15:09,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:15:09 BoogieIcfgContainer [2020-10-27 01:15:09,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:15:09,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:15:09,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:15:09,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:15:09,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:15:08" (1/3) ... [2020-10-27 01:15:09,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78cc42ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:15:09, skipping insertion in model container [2020-10-27 01:15:09,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:15:09" (2/3) ... [2020-10-27 01:15:09,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78cc42ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:15:09, skipping insertion in model container [2020-10-27 01:15:09,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:15:09" (3/3) ... [2020-10-27 01:15:09,495 INFO L111 eAbstractionObserver]: Analyzing ICFG test_while_int.i [2020-10-27 01:15:09,510 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:15:09,516 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:15:09,533 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:15:09,564 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:15:09,564 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:15:09,564 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:15:09,564 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:15:09,564 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:15:09,565 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:15:09,565 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:15:09,565 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:15:09,585 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-27 01:15:09,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-27 01:15:09,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:09,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:15:09,592 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:09,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:09,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1657195269, now seen corresponding path program 1 times [2020-10-27 01:15:09,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:09,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713547045] [2020-10-27 01:15:09,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:09,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:10,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:10,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 01:15:10,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:10,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-10-27 01:15:10,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:10,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 01:15:10,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:15:10,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 01:15:10,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-27 01:15:10,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:10,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:10,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:10,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:10,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:10,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 01:15:10,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:10,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:10,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:10,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:10,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:15:10,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:15:10,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1713547045] [2020-10-27 01:15:10,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:15:10,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 01:15:10,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312725505] [2020-10-27 01:15:10,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 01:15:10,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:15:10,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 01:15:10,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-27 01:15:10,490 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 7 states. [2020-10-27 01:15:10,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:15:10,870 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2020-10-27 01:15:10,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 01:15:10,874 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-27 01:15:10,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:15:10,883 INFO L225 Difference]: With dead ends: 48 [2020-10-27 01:15:10,883 INFO L226 Difference]: Without dead ends: 23 [2020-10-27 01:15:10,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-10-27 01:15:10,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-27 01:15:10,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2020-10-27 01:15:10,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-27 01:15:10,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-10-27 01:15:10,967 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13 [2020-10-27 01:15:10,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:15:10,968 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-10-27 01:15:10,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 01:15:10,968 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-10-27 01:15:10,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 01:15:10,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:10,971 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:15:10,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:15:10,972 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:10,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:10,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1579769012, now seen corresponding path program 1 times [2020-10-27 01:15:10,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:10,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1724837922] [2020-10-27 01:15:10,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:11,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:11,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:11,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 01:15:11,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:11,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-27 01:15:11,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:11,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 01:15:11,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 01:15:11,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-27 01:15:11,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 17 [2020-10-27 01:15:11,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:15:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:11,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:11,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:11,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:15:11,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:11,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 01:15:11,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:11,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:15:11,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:11,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:15:11,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:11,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 01:15:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:15:11,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:15:11,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:15:11,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 01:15:11,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:15:11,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 01:15:11,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:15:11,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 01:15:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:15:11,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 01:15:11,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 01:15:11,347 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:15:11,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1724837922] [2020-10-27 01:15:11,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 01:15:11,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 01:15:11,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384329639] [2020-10-27 01:15:11,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 01:15:11,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:15:11,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 01:15:11,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-27 01:15:11,352 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 8 states. [2020-10-27 01:15:11,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:15:11,715 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2020-10-27 01:15:11,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 01:15:11,716 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-10-27 01:15:11,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:15:11,717 INFO L225 Difference]: With dead ends: 33 [2020-10-27 01:15:11,717 INFO L226 Difference]: Without dead ends: 29 [2020-10-27 01:15:11,718 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-27 01:15:11,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-27 01:15:11,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2020-10-27 01:15:11,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-27 01:15:11,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2020-10-27 01:15:11,728 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 19 [2020-10-27 01:15:11,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:15:11,728 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2020-10-27 01:15:11,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 01:15:11,729 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2020-10-27 01:15:11,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-27 01:15:11,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:15:11,730 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:15:11,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:15:11,730 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:15:11,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:15:11,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1493020451, now seen corresponding path program 2 times [2020-10-27 01:15:11,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:15:11,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1632030485] [2020-10-27 01:15:11,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:15:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:15:11,750 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:15:11,750 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:15:11,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 01:15:11,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:15:11 BoogieIcfgContainer [2020-10-27 01:15:11,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:15:11,775 INFO L168 Benchmark]: Toolchain (without parser) took 2984.83 ms. Allocated memory was 156.2 MB in the beginning and 195.0 MB in the end (delta: 38.8 MB). Free memory was 130.7 MB in the beginning and 121.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 49.4 MB. Max. memory is 8.0 GB. [2020-10-27 01:15:11,779 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 156.2 MB. Free memory was 127.3 MB in the beginning and 127.2 MB in the end (delta: 102.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:15:11,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.92 ms. Allocated memory is still 156.2 MB. Free memory was 130.1 MB in the beginning and 121.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-27 01:15:11,782 INFO L168 Benchmark]: Boogie Preprocessor took 37.30 ms. Allocated memory is still 156.2 MB. Free memory was 121.1 MB in the beginning and 119.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-27 01:15:11,783 INFO L168 Benchmark]: RCFGBuilder took 389.04 ms. Allocated memory is still 156.2 MB. Free memory was 119.6 MB in the beginning and 107.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-27 01:15:11,786 INFO L168 Benchmark]: TraceAbstraction took 2285.36 ms. Allocated memory was 156.2 MB in the beginning and 195.0 MB in the end (delta: 38.8 MB). Free memory was 107.0 MB in the beginning and 121.1 MB in the end (delta: -14.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 8.0 GB. [2020-10-27 01:15:11,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 156.2 MB. Free memory was 127.3 MB in the beginning and 127.2 MB in the end (delta: 102.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 260.92 ms. Allocated memory is still 156.2 MB. Free memory was 130.1 MB in the beginning and 121.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.30 ms. Allocated memory is still 156.2 MB. Free memory was 121.1 MB in the beginning and 119.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 389.04 ms. Allocated memory is still 156.2 MB. Free memory was 119.6 MB in the beginning and 107.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2285.36 ms. Allocated memory was 156.2 MB in the beginning and 195.0 MB in the end (delta: 38.8 MB). Free memory was 107.0 MB in the beginning and 121.1 MB in the end (delta: -14.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L25] int i=0; [L26] COND TRUE i<5 [L27] i++ [L31] CALL check_error(i!=3) [L20] (b) ? (0) : __blast_assert () [L31] RET check_error(i!=3) [L26] COND TRUE i<5 [L27] i++ [L31] CALL check_error(i!=3) [L20] (b) ? (0) : __blast_assert () [L31] RET check_error(i!=3) [L26] COND TRUE i<5 [L27] i++ [L31] CALL check_error(i!=3) [L20] (b) ? (0) : __blast_assert () [L20] CALL __blast_assert () [L8] CALL reach_error() [L3] __assert_fail("0", "test_while_int.i", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 34 SDslu, 60 SDs, 0 SdLazy, 100 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=2, 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 1704 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/4 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...