/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invariants/mod4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:21:16,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:21:16,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:21:16,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:21:16,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:21:16,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:21:16,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:21:16,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:21:16,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:21:16,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:21:16,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:21:16,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:21:16,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:21:16,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:21:16,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:21:16,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:21:16,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:21:16,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:21:16,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:21:16,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:21:16,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:21:16,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:21:16,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:21:16,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:21:16,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:21:16,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:21:16,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:21:16,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:21:16,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:21:16,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-25 02:21:16,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:21:16,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:21:16,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:21:16,601 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:21:16,635 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:21:16,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:21:16,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:21:16,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:21:16,637 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:21:16,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:21:16,637 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:21:16,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:21:16,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:21:16,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:21:16,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:21:16,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:21:16,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:21:16,641 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:21:16,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:21:16,641 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:21:16,641 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:21:16,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:21:16,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:21:16,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:21:16,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:21:16,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:21:16,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:21:16,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:21:16,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:21:16,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:21:16,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:21:16,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:21:16,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:21:16,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 02:21:17,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:21:17,200 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:21:17,204 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:21:17,207 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:21:17,207 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:21:17,209 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/mod4.c [2020-09-25 02:21:17,296 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/477954475/9cc70ea7918a49e5911e380e7fcdc36b/FLAG7f7804ede [2020-09-25 02:21:17,881 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:21:17,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invariants/mod4.c [2020-09-25 02:21:17,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/477954475/9cc70ea7918a49e5911e380e7fcdc36b/FLAG7f7804ede [2020-09-25 02:21:18,233 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/477954475/9cc70ea7918a49e5911e380e7fcdc36b [2020-09-25 02:21:18,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:21:18,251 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:21:18,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:21:18,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:21:18,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:21:18,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:21:18" (1/1) ... [2020-09-25 02:21:18,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5273b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:18, skipping insertion in model container [2020-09-25 02:21:18,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:21:18" (1/1) ... [2020-09-25 02:21:18,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:21:18,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:21:18,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:21:18,519 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:21:18,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:21:18,552 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:21:18,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:18 WrapperNode [2020-09-25 02:21:18,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:21:18,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:21:18,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:21:18,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:21:18,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:18" (1/1) ... [2020-09-25 02:21:18,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:18" (1/1) ... [2020-09-25 02:21:18,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:18" (1/1) ... [2020-09-25 02:21:18,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:18" (1/1) ... [2020-09-25 02:21:18,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:18" (1/1) ... [2020-09-25 02:21:18,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:18" (1/1) ... [2020-09-25 02:21:18,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:18" (1/1) ... [2020-09-25 02:21:18,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:21:18,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:21:18,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:21:18,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:21:18,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:21:18,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:21:18,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:21:18,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 02:21:18,752 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:21:18,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:21:18,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:21:18,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 02:21:18,753 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:21:18,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:21:18,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:21:18,950 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:21:18,950 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 02:21:18,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:21:18 BoogieIcfgContainer [2020-09-25 02:21:18,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:21:18,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:21:18,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:21:18,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:21:18,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:21:18" (1/3) ... [2020-09-25 02:21:18,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4498a358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:21:18, skipping insertion in model container [2020-09-25 02:21:18,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:18" (2/3) ... [2020-09-25 02:21:18,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4498a358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:21:18, skipping insertion in model container [2020-09-25 02:21:18,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:21:18" (3/3) ... [2020-09-25 02:21:18,964 INFO L109 eAbstractionObserver]: Analyzing ICFG mod4.c [2020-09-25 02:21:18,974 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:21:18,985 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:21:19,006 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:21:19,034 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:21:19,035 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:21:19,035 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:21:19,035 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:21:19,035 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:21:19,035 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:21:19,036 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:21:19,036 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:21:19,056 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-09-25 02:21:19,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-25 02:21:19,063 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:21:19,064 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:21:19,065 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:21:19,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:21:19,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1137787585, now seen corresponding path program 1 times [2020-09-25 02:21:19,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:21:19,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265396659] [2020-09-25 02:21:19,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:21:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:19,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:19,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:19,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:19,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 02:21:19,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:21:19,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 02:21:19,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:19,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:21:19,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 02:21:19,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:21:19,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:21:19,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:21:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:19,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:19,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:19,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:21:19,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:21:19,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:21:19,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:19,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:21:19,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:21:19,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:21:19,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:21:19,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:21:19,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265396659] [2020-09-25 02:21:19,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:21:19,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-25 02:21:19,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540590719] [2020-09-25 02:21:19,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-25 02:21:19,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:21:19,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-25 02:21:19,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-25 02:21:19,386 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-09-25 02:21:19,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:21:19,413 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2020-09-25 02:21:19,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-25 02:21:19,415 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-25 02:21:19,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:21:19,426 INFO L225 Difference]: With dead ends: 34 [2020-09-25 02:21:19,427 INFO L226 Difference]: Without dead ends: 15 [2020-09-25 02:21:19,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-25 02:21:19,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-09-25 02:21:19,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-09-25 02:21:19,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-09-25 02:21:19,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-09-25 02:21:19,481 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2020-09-25 02:21:19,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:21:19,482 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-09-25 02:21:19,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-25 02:21:19,482 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-09-25 02:21:19,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-25 02:21:19,483 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:21:19,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:21:19,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:21:19,484 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:21:19,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:21:19,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1424281528, now seen corresponding path program 1 times [2020-09-25 02:21:19,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:21:19,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195393128] [2020-09-25 02:21:19,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:21:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:19,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:19,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:19,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 02:21:19,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:21:19,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 02:21:19,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:19,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:21:19,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:21:19,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:21:19,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:21:19,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:21:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:19,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:19,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:19,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:21:19,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:21:19,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:21:19,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:19,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:21:19,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:21:19,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:21:19,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:21:19,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:21:19,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195393128] [2020-09-25 02:21:19,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:21:19,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:21:19,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25140677] [2020-09-25 02:21:19,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:21:19,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:21:19,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:21:19,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:21:19,905 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 5 states. [2020-09-25 02:21:20,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:21:20,012 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-09-25 02:21:20,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 02:21:20,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-09-25 02:21:20,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:21:20,013 INFO L225 Difference]: With dead ends: 15 [2020-09-25 02:21:20,014 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 02:21:20,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:21:20,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 02:21:20,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 02:21:20,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 02:21:20,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 02:21:20,017 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-09-25 02:21:20,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:21:20,017 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 02:21:20,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:21:20,017 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 02:21:20,018 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 02:21:20,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:21:20,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 02:21:20,060 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 02:21:20,061 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:21:20,061 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:21:20,061 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 02:21:20,061 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 02:21:20,062 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 02:21:20,062 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 9 16) the Hoare annotation is: true [2020-09-25 02:21:20,062 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 9 16) no Hoare annotation was computed. [2020-09-25 02:21:20,062 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-09-25 02:21:20,062 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 9 16) no Hoare annotation was computed. [2020-09-25 02:21:20,063 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 02:21:20,063 INFO L268 CegarLoopResult]: For program point L11-1(lines 11 13) no Hoare annotation was computed. [2020-09-25 02:21:20,063 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-25 02:21:20,063 INFO L268 CegarLoopResult]: For program point L11-4(line 11) no Hoare annotation was computed. [2020-09-25 02:21:20,068 INFO L264 CegarLoopResult]: At program point L11-5(lines 11 13) the Hoare annotation is: (= main_~x~0 (let ((.cse0 (div main_~x~0 4))) (+ (* 4 .cse0) (* 4294967296 (div (+ main_~x~0 (* .cse0 (- 4))) 4294967296))))) [2020-09-25 02:21:20,068 INFO L264 CegarLoopResult]: At program point L11-6(lines 11 13) the Hoare annotation is: (= main_~x~0 (let ((.cse0 (div main_~x~0 4))) (+ (* 4 .cse0) (* 4294967296 (div (+ main_~x~0 (* .cse0 (- 4))) 4294967296))))) [2020-09-25 02:21:20,069 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-25 02:21:20,069 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-25 02:21:20,069 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 02:21:20,069 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-25 02:21:20,070 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-25 02:21:20,070 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-25 02:21:20,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:21:20 BoogieIcfgContainer [2020-09-25 02:21:20,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:21:20,096 INFO L168 Benchmark]: Toolchain (without parser) took 1846.09 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 100.2 MB in the beginning and 119.3 MB in the end (delta: -19.1 MB). Peak memory consumption was 37.0 MB. Max. memory is 7.1 GB. [2020-09-25 02:21:20,097 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 145.2 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 02:21:20,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.45 ms. Allocated memory is still 145.2 MB. Free memory was 99.6 MB in the beginning and 90.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2020-09-25 02:21:20,099 INFO L168 Benchmark]: Boogie Preprocessor took 120.52 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 90.4 MB in the beginning and 181.2 MB in the end (delta: -90.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2020-09-25 02:21:20,100 INFO L168 Benchmark]: RCFGBuilder took 280.03 ms. Allocated memory is still 201.3 MB. Free memory was 181.2 MB in the beginning and 168.7 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-25 02:21:20,101 INFO L168 Benchmark]: TraceAbstraction took 1135.53 ms. Allocated memory is still 201.3 MB. Free memory was 168.0 MB in the beginning and 119.3 MB in the end (delta: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 7.1 GB. [2020-09-25 02:21:20,105 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 145.2 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 301.45 ms. Allocated memory is still 145.2 MB. Free memory was 99.6 MB in the beginning and 90.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.52 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 90.4 MB in the beginning and 181.2 MB in the end (delta: -90.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 280.03 ms. Allocated memory is still 201.3 MB. Free memory was 181.2 MB in the beginning and 168.7 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1135.53 ms. Allocated memory is still 201.3 MB. Free memory was 168.0 MB in the beginning and 119.3 MB in the end (delta: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: x == 4 * (x / 4) + 4294967296 * ((x + x / 4 * -4) / 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 3 SDslu, 26 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 43 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 1060 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 correct! Received shutdown request...