/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=SHALLOWEST --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-acceleration/simple_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:04:24,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:04:24,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:04:24,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:04:24,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:04:24,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:04:24,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:04:24,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:04:24,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:04:24,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:04:24,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:04:24,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:04:24,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:04:24,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:04:24,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:04:24,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:04:24,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:04:24,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:04:24,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:04:24,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:04:24,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:04:24,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:04:24,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:04:24,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:04:24,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:04:24,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:04:24,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:04:24,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:04:24,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:04:24,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:04:24,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:04:24,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:04:24,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:04:24,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:04:24,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:04:24,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:04:24,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:04:24,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:04:24,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:04:24,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:04:24,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:04:24,651 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 00:04:24,712 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:04:24,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:04:24,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:04:24,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:04:24,716 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:04:24,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:04:24,716 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:04:24,717 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:04:24,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:04:24,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:04:24,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:04:24,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:04:24,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:04:24,719 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:04:24,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:04:24,719 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:04:24,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:04:24,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:04:24,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:04:24,721 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:04:24,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:04:24,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:04:24,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:04:24,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:04:24,722 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:04:24,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:04:24,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:04:24,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:04:24,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:04:24,724 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-25 00:04:25,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:04:25,274 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:04:25,278 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:04:25,281 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:04:25,281 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:04:25,283 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_2-1.c [2020-09-25 00:04:25,368 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb8d10dfe/9516c17c03804cae99cb5d551b99e1a8/FLAGb14651695 [2020-09-25 00:04:25,892 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:04:25,892 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-acceleration/simple_2-1.c [2020-09-25 00:04:25,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb8d10dfe/9516c17c03804cae99cb5d551b99e1a8/FLAGb14651695 [2020-09-25 00:04:26,236 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb8d10dfe/9516c17c03804cae99cb5d551b99e1a8 [2020-09-25 00:04:26,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:04:26,257 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:04:26,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:04:26,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:04:26,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:04:26,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:26" (1/1) ... [2020-09-25 00:04:26,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c489c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26, skipping insertion in model container [2020-09-25 00:04:26,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:04:26" (1/1) ... [2020-09-25 00:04:26,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:04:26,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:04:26,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:04:26,537 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:04:26,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:04:26,575 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:04:26,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26 WrapperNode [2020-09-25 00:04:26,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:04:26,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:04:26,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:04:26,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:04:26,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (1/1) ... [2020-09-25 00:04:26,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (1/1) ... [2020-09-25 00:04:26,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (1/1) ... [2020-09-25 00:04:26,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (1/1) ... [2020-09-25 00:04:26,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (1/1) ... [2020-09-25 00:04:26,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (1/1) ... [2020-09-25 00:04:26,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (1/1) ... [2020-09-25 00:04:26,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:04:26,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:04:26,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:04:26,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:04:26,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (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 00:04:26,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:04:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:04:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 00:04:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:04:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:04:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 00:04:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 00:04:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:04:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:04:26,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:04:26,986 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:04:26,986 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 00:04:26,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:26 BoogieIcfgContainer [2020-09-25 00:04:26,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:04:26,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:04:26,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:04:26,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:04:26,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:04:26" (1/3) ... [2020-09-25 00:04:26,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5118af8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:26, skipping insertion in model container [2020-09-25 00:04:26,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:04:26" (2/3) ... [2020-09-25 00:04:26,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5118af8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:04:26, skipping insertion in model container [2020-09-25 00:04:26,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:04:26" (3/3) ... [2020-09-25 00:04:27,001 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_2-1.c [2020-09-25 00:04:27,013 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:04:27,023 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:04:27,045 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:04:27,077 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:04:27,077 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:04:27,078 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:04:27,078 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:04:27,078 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:04:27,078 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:04:27,078 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:04:27,079 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:04:27,102 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-09-25 00:04:27,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-25 00:04:27,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:04:27,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:04:27,112 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:04:27,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:04:27,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1940560411, now seen corresponding path program 1 times [2020-09-25 00:04:27,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:04:27,133 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019024354] [2020-09-25 00:04:27,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:04:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:27,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:27,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:27,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 00:04:27,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:27,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 00:04:27,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:27,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:04:27,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 00:04:27,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:04:27,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:04:27,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:04:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:27,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:27,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:27,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:04:27,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:27,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:04:27,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:27,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:04:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:04:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:04:27,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:04:27,302 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 00:04:27,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019024354] [2020-09-25 00:04:27,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:04:27,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-25 00:04:27,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219159538] [2020-09-25 00:04:27,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-25 00:04:27,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:04:27,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-25 00:04:27,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-25 00:04:27,333 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-09-25 00:04:27,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:04:27,358 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-09-25 00:04:27,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-25 00:04:27,360 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-09-25 00:04:27,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:04:27,370 INFO L225 Difference]: With dead ends: 32 [2020-09-25 00:04:27,370 INFO L226 Difference]: Without dead ends: 15 [2020-09-25 00:04:27,375 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 00:04:27,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-09-25 00:04:27,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-09-25 00:04:27,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-09-25 00:04:27,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2020-09-25 00:04:27,420 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2020-09-25 00:04:27,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:04:27,421 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2020-09-25 00:04:27,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-25 00:04:27,421 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-09-25 00:04:27,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-25 00:04:27,422 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:04:27,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:04:27,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:04:27,423 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:04:27,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:04:27,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1947025058, now seen corresponding path program 1 times [2020-09-25 00:04:27,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:04:27,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1457852277] [2020-09-25 00:04:27,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:04:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:27,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:27,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:27,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 00:04:27,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:27,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 00:04:27,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:27,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:04:27,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 00:04:27,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 00:04:27,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:04:27,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:04:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:04:27,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:04:27,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:04:27,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:04:27,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:04:27,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:04:27,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:04:27,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:04:27,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:04:27,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:04:27,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:04:27,646 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 00:04:27,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1457852277] [2020-09-25 00:04:27,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:04:27,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 00:04:27,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528424035] [2020-09-25 00:04:27,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 00:04:27,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:04:27,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 00:04:27,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:04:27,652 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 5 states. [2020-09-25 00:04:27,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:04:27,694 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-09-25 00:04:27,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:04:27,695 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-09-25 00:04:27,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:04:27,696 INFO L225 Difference]: With dead ends: 15 [2020-09-25 00:04:27,696 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 00:04:27,697 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 00:04:27,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 00:04:27,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 00:04:27,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 00:04:27,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 00:04:27,699 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-09-25 00:04:27,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:04:27,699 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 00:04:27,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 00:04:27,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 00:04:27,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 00:04:27,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:04:27,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 00:04:27,738 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 00:04:27,739 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 00:04:27,739 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 00:04:27,739 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 00:04:27,739 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 00:04:27,740 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 00:04:27,740 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 19) the Hoare annotation is: true [2020-09-25 00:04:27,740 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 19) no Hoare annotation was computed. [2020-09-25 00:04:27,740 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 00:04:27,741 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 00:04:27,742 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 00:04:27,742 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 19) no Hoare annotation was computed. [2020-09-25 00:04:27,742 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 00:04:27,743 INFO L271 CegarLoopResult]: At program point L14-2(lines 14 16) the Hoare annotation is: true [2020-09-25 00:04:27,743 INFO L264 CegarLoopResult]: At program point L14-3(lines 14 16) the Hoare annotation is: (< (+ (* 4294967296 (div main_~x~0 4294967296)) 268435454) main_~x~0) [2020-09-25 00:04:27,743 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2020-09-25 00:04:27,744 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2020-09-25 00:04:27,744 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-09-25 00:04:27,744 INFO L268 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed. [2020-09-25 00:04:27,744 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-09-25 00:04:27,745 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2020-09-25 00:04:27,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:04:27 BoogieIcfgContainer [2020-09-25 00:04:27,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:04:27,765 INFO L168 Benchmark]: Toolchain (without parser) took 1511.05 ms. Allocated memory was 142.6 MB in the beginning and 204.5 MB in the end (delta: 61.9 MB). Free memory was 104.5 MB in the beginning and 132.7 MB in the end (delta: -28.2 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2020-09-25 00:04:27,766 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 142.6 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 00:04:27,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.92 ms. Allocated memory is still 142.6 MB. Free memory was 103.9 MB in the beginning and 94.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-09-25 00:04:27,769 INFO L168 Benchmark]: Boogie Preprocessor took 119.53 ms. Allocated memory was 142.6 MB in the beginning and 204.5 MB in the end (delta: 61.9 MB). Free memory was 94.7 MB in the beginning and 184.5 MB in the end (delta: -89.8 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-09-25 00:04:27,770 INFO L168 Benchmark]: RCFGBuilder took 294.18 ms. Allocated memory is still 204.5 MB. Free memory was 184.5 MB in the beginning and 172.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-09-25 00:04:27,771 INFO L168 Benchmark]: TraceAbstraction took 768.41 ms. Allocated memory is still 204.5 MB. Free memory was 172.2 MB in the beginning and 132.7 MB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 7.1 GB. [2020-09-25 00:04:27,776 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 142.6 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 316.92 ms. Allocated memory is still 142.6 MB. Free memory was 103.9 MB in the beginning and 94.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.53 ms. Allocated memory was 142.6 MB in the beginning and 204.5 MB in the end (delta: 61.9 MB). Free memory was 94.7 MB in the beginning and 184.5 MB in the end (delta: -89.8 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 294.18 ms. Allocated memory is still 204.5 MB. Free memory was 184.5 MB in the beginning and 172.8 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 768.41 ms. Allocated memory is still 204.5 MB. Free memory was 172.2 MB in the beginning and 132.7 MB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 1 SDslu, 30 SDs, 0 SdLazy, 6 SolverSat, 0 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 15 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 340 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...