java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/array_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:13:56,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:13:56,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:13:56,568 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:13:56,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:13:56,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:13:56,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:13:56,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:13:56,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:13:56,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:13:56,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:13:56,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:13:56,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:13:56,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:13:56,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:13:56,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:13:56,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:13:56,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:13:56,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:13:56,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:13:56,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:13:56,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:13:56,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:13:56,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:13:56,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:13:56,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:13:56,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:13:56,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:13:56,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:13:56,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:13:56,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:13:56,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:13:56,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:13:56,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:13:56,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:13:56,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:13:56,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:13:56,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:13:56,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:13:56,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:13:56,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:13:56,601 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:13:56,614 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:13:56,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:13:56,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:13:56,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:13:56,616 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:13:56,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:13:56,617 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:13:56,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:13:56,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:13:56,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:13:56,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:13:56,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:13:56,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:13:56,618 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:13:56,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:13:56,619 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:13:56,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:13:56,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:13:56,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:13:56,621 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:13:56,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:13:56,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:13:56,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:13:56,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:13:56,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:13:56,622 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:13:56,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:13:56,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:13:56,623 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:13:56,913 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:13:56,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:13:56,936 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:13:56,938 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:13:56,938 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:13:56,939 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array_1-2.c [2019-10-14 23:13:57,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f734d0773/4f784dc1301146c29e7c0644d2ed7ae1/FLAG8b0b59450 [2019-10-14 23:13:57,476 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:13:57,477 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_1-2.c [2019-10-14 23:13:57,484 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f734d0773/4f784dc1301146c29e7c0644d2ed7ae1/FLAG8b0b59450 [2019-10-14 23:13:57,857 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f734d0773/4f784dc1301146c29e7c0644d2ed7ae1 [2019-10-14 23:13:57,866 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:13:57,868 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:13:57,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:13:57,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:13:57,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:13:57,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:13:57" (1/1) ... [2019-10-14 23:13:57,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6ec49e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:57, skipping insertion in model container [2019-10-14 23:13:57,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:13:57" (1/1) ... [2019-10-14 23:13:57,885 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:13:57,901 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:13:58,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:13:58,125 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:13:58,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:13:58,173 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:13:58,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:58 WrapperNode [2019-10-14 23:13:58,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:13:58,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:13:58,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:13:58,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:13:58,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:58" (1/1) ... [2019-10-14 23:13:58,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:58" (1/1) ... [2019-10-14 23:13:58,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:58" (1/1) ... [2019-10-14 23:13:58,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:58" (1/1) ... [2019-10-14 23:13:58,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:58" (1/1) ... [2019-10-14 23:13:58,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:58" (1/1) ... [2019-10-14 23:13:58,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:58" (1/1) ... [2019-10-14 23:13:58,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:13:58,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:13:58,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:13:58,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:13:58,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:13:58,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:13:58,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:13:58,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:13:58,364 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:13:58,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:13:58,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:13:58,364 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:13:58,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:13:58,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:13:58,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:13:58,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:13:58,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:13:58,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:13:58,558 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:13:58,559 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-14 23:13:58,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:13:58 BoogieIcfgContainer [2019-10-14 23:13:58,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:13:58,562 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:13:58,562 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:13:58,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:13:58,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:13:57" (1/3) ... [2019-10-14 23:13:58,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583b99f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:13:58, skipping insertion in model container [2019-10-14 23:13:58,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:13:58" (2/3) ... [2019-10-14 23:13:58,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@583b99f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:13:58, skipping insertion in model container [2019-10-14 23:13:58,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:13:58" (3/3) ... [2019-10-14 23:13:58,568 INFO L109 eAbstractionObserver]: Analyzing ICFG array_1-2.c [2019-10-14 23:13:58,578 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:13:58,586 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:13:58,599 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:13:58,633 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:13:58,634 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:13:58,634 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:13:58,634 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:13:58,634 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:13:58,639 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:13:58,640 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:13:58,640 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:13:58,666 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-10-14 23:13:58,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-14 23:13:58,675 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:13:58,676 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:13:58,679 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:13:58,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:13:58,687 INFO L82 PathProgramCache]: Analyzing trace with hash -267856937, now seen corresponding path program 1 times [2019-10-14 23:13:58,699 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:13:58,700 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119448735] [2019-10-14 23:13:58,700 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:58,700 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:58,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:13:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:58,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:13:58,886 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119448735] [2019-10-14 23:13:58,887 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:13:58,887 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:13:58,888 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947918828] [2019-10-14 23:13:58,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:13:58,893 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:13:58,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:13:58,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:13:58,911 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2019-10-14 23:13:58,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:13:58,990 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2019-10-14 23:13:58,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:13:58,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-10-14 23:13:58,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:13:59,000 INFO L225 Difference]: With dead ends: 34 [2019-10-14 23:13:59,001 INFO L226 Difference]: Without dead ends: 14 [2019-10-14 23:13:59,004 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:13:59,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-14 23:13:59,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-14 23:13:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-14 23:13:59,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-10-14 23:13:59,040 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2019-10-14 23:13:59,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:13:59,041 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-10-14 23:13:59,041 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:13:59,042 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-10-14 23:13:59,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-14 23:13:59,043 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:13:59,043 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:13:59,043 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:13:59,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:13:59,044 INFO L82 PathProgramCache]: Analyzing trace with hash -439631843, now seen corresponding path program 1 times [2019-10-14 23:13:59,044 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:13:59,045 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745676356] [2019-10-14 23:13:59,045 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:59,045 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:59,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:13:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:59,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:13:59,124 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745676356] [2019-10-14 23:13:59,124 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:13:59,124 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:13:59,125 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506488555] [2019-10-14 23:13:59,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:13:59,127 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:13:59,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:13:59,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:13:59,128 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 4 states. [2019-10-14 23:13:59,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:13:59,175 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-10-14 23:13:59,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:13:59,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-10-14 23:13:59,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:13:59,177 INFO L225 Difference]: With dead ends: 22 [2019-10-14 23:13:59,177 INFO L226 Difference]: Without dead ends: 16 [2019-10-14 23:13:59,178 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:13:59,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-14 23:13:59,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-10-14 23:13:59,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-14 23:13:59,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-10-14 23:13:59,184 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2019-10-14 23:13:59,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:13:59,184 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-10-14 23:13:59,185 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:13:59,185 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-10-14 23:13:59,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-14 23:13:59,186 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:13:59,186 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:13:59,186 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:13:59,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:13:59,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1874839487, now seen corresponding path program 1 times [2019-10-14 23:13:59,187 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:13:59,188 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120337866] [2019-10-14 23:13:59,188 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:59,188 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:59,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:13:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:59,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:13:59,264 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120337866] [2019-10-14 23:13:59,264 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259947737] [2019-10-14 23:13:59,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:13:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:59,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:13:59,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:13:59,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:13:59,373 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:13:59,373 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2019-10-14 23:13:59,373 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534494007] [2019-10-14 23:13:59,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:13:59,374 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:13:59,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:13:59,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:13:59,375 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 6 states. [2019-10-14 23:13:59,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:13:59,448 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-10-14 23:13:59,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:13:59,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-10-14 23:13:59,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:13:59,450 INFO L225 Difference]: With dead ends: 24 [2019-10-14 23:13:59,450 INFO L226 Difference]: Without dead ends: 18 [2019-10-14 23:13:59,451 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:13:59,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-14 23:13:59,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2019-10-14 23:13:59,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-14 23:13:59,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2019-10-14 23:13:59,459 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2019-10-14 23:13:59,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:13:59,459 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2019-10-14 23:13:59,459 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:13:59,459 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-10-14 23:13:59,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-14 23:13:59,461 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:13:59,461 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:13:59,664 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:13:59,665 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:13:59,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:13:59,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1288728289, now seen corresponding path program 2 times [2019-10-14 23:13:59,665 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:13:59,665 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291159311] [2019-10-14 23:13:59,666 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:59,666 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:13:59,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:13:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:13:59,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:13:59,739 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291159311] [2019-10-14 23:13:59,740 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510390005] [2019-10-14 23:13:59,740 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:13:59,775 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-14 23:13:59,775 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-14 23:13:59,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-14 23:13:59,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:13:59,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:13:59,799 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:13:59,800 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2019-10-14 23:13:59,800 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619060630] [2019-10-14 23:13:59,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:13:59,801 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:13:59,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:13:59,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:13:59,802 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 7 states. [2019-10-14 23:13:59,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:13:59,860 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-10-14 23:13:59,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-14 23:13:59,861 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2019-10-14 23:13:59,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:13:59,862 INFO L225 Difference]: With dead ends: 26 [2019-10-14 23:13:59,862 INFO L226 Difference]: Without dead ends: 20 [2019-10-14 23:13:59,863 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:13:59,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-14 23:13:59,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-10-14 23:13:59,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-14 23:13:59,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-10-14 23:13:59,868 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 16 [2019-10-14 23:13:59,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:13:59,869 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-10-14 23:13:59,869 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:13:59,869 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-10-14 23:13:59,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-14 23:13:59,870 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:13:59,870 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:14:00,079 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:14:00,079 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:14:00,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:14:00,080 INFO L82 PathProgramCache]: Analyzing trace with hash 676582787, now seen corresponding path program 3 times [2019-10-14 23:14:00,080 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:14:00,080 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312766142] [2019-10-14 23:14:00,081 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:14:00,081 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:14:00,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:14:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:14:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:14:00,209 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:14:00,210 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312766142] [2019-10-14 23:14:00,210 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715128070] [2019-10-14 23:14:00,210 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:14:00,253 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-14 23:14:00,253 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-14 23:14:00,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 12 conjunts are in the unsatisfiable core [2019-10-14 23:14:00,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:14:00,310 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2019-10-14 23:14:00,311 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:14:00,319 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:14:00,319 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:14:00,320 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-10-14 23:14:00,425 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:14:00,425 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2019-10-14 23:14:00,426 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-10-14 23:14:00,441 INFO L567 ElimStorePlain]: treesize reduction 11, result has 47.6 percent of original size [2019-10-14 23:14:00,442 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:14:00,443 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:27, output treesize:7 [2019-10-14 23:14:00,462 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:14:00,500 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-14 23:14:00,501 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-14 23:14:00,501 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2019-10-14 23:14:00,501 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880109649] [2019-10-14 23:14:00,502 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:14:00,502 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:14:00,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:14:00,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:14:00,503 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 8 states. [2019-10-14 23:14:02,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:14:02,646 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2019-10-14 23:14:02,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 23:14:02,646 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2019-10-14 23:14:02,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:14:02,647 INFO L225 Difference]: With dead ends: 19 [2019-10-14 23:14:02,647 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:14:02,648 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:14:02,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:14:02,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:14:02,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:14:02,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:14:02,649 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-10-14 23:14:02,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:14:02,649 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:14:02,649 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:14:02,649 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:14:02,650 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:14:02,850 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:14:02,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:14:02,924 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:14:02,925 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-14 23:14:02,925 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:14:02,925 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:14:02,927 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:14:02,928 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:14:02,928 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:14:02,928 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 10 19) the Hoare annotation is: (= |#valid| |old(#valid)|) [2019-10-14 23:14:02,928 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 19) no Hoare annotation was computed. [2019-10-14 23:14:02,928 INFO L439 ceAbstractionStarter]: At program point L18(line 18) the Hoare annotation is: (and (exists ((v_main_~i~0_10 Int)) (and (< v_main_~i~0_10 1024) (<= main_~i~0 (+ v_main_~i~0_10 1)) (= v_main_~i~0_10 (select (select |#memory_int| |main_~#A~0.base|) (+ (* v_main_~i~0_10 4) |main_~#A~0.offset|))))) (<= 1023 |main_#t~mem1|) (exists ((v_main_~i~0_10 Int)) (and (< v_main_~i~0_10 1024) (= v_main_~i~0_10 (select (select |#memory_int| |main_~#A~0.base|) (+ (* v_main_~i~0_10 4) |main_~#A~0.offset|))) (<= 1023 v_main_~i~0_10))) (< |main_#t~mem1| 1024)) [2019-10-14 23:14:02,928 INFO L443 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2019-10-14 23:14:02,929 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 19) no Hoare annotation was computed. [2019-10-14 23:14:02,929 INFO L443 ceAbstractionStarter]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2019-10-14 23:14:02,929 INFO L439 ceAbstractionStarter]: At program point L14-3(lines 14 16) the Hoare annotation is: (or (exists ((v_main_~i~0_10 Int)) (and (< v_main_~i~0_10 1024) (<= main_~i~0 (+ v_main_~i~0_10 1)) (= v_main_~i~0_10 (select (select |#memory_int| |main_~#A~0.base|) (+ (* v_main_~i~0_10 4) |main_~#A~0.offset|))))) (= main_~i~0 0)) [2019-10-14 23:14:02,929 INFO L443 ceAbstractionStarter]: For program point L14-4(lines 14 16) no Hoare annotation was computed. [2019-10-14 23:14:02,929 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-14 23:14:02,929 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-14 23:14:02,930 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-14 23:14:02,930 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-14 23:14:02,930 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-14 23:14:02,930 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-14 23:14:02,936 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2019-10-14 23:14:02,937 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2019-10-14 23:14:02,938 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2019-10-14 23:14:02,938 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2019-10-14 23:14:02,940 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:14:02,944 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2019-10-14 23:14:02,944 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2019-10-14 23:14:02,944 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2019-10-14 23:14:02,945 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2019-10-14 23:14:02,945 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:14:02,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:14:02 BoogieIcfgContainer [2019-10-14 23:14:02,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:14:02,949 INFO L168 Benchmark]: Toolchain (without parser) took 5080.99 ms. Allocated memory was 145.8 MB in the beginning and 235.4 MB in the end (delta: 89.7 MB). Free memory was 103.8 MB in the beginning and 155.3 MB in the end (delta: -51.5 MB). Peak memory consumption was 38.1 MB. Max. memory is 7.1 GB. [2019-10-14 23:14:02,950 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-14 23:14:02,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.16 ms. Allocated memory is still 145.8 MB. Free memory was 103.5 MB in the beginning and 94.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:14:02,952 INFO L168 Benchmark]: Boogie Preprocessor took 131.04 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 94.0 MB in the beginning and 182.1 MB in the end (delta: -88.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-14 23:14:02,957 INFO L168 Benchmark]: RCFGBuilder took 254.70 ms. Allocated memory is still 203.9 MB. Free memory was 182.1 MB in the beginning and 169.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2019-10-14 23:14:02,958 INFO L168 Benchmark]: TraceAbstraction took 4385.81 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 169.1 MB in the beginning and 155.3 MB in the end (delta: 13.8 MB). Peak memory consumption was 45.3 MB. Max. memory is 7.1 GB. [2019-10-14 23:14:02,962 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 145.8 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 305.16 ms. Allocated memory is still 145.8 MB. Free memory was 103.5 MB in the beginning and 94.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.04 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 94.0 MB in the beginning and 182.1 MB in the end (delta: -88.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 254.70 ms. Allocated memory is still 203.9 MB. Free memory was 182.1 MB in the beginning and 169.1 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4385.81 ms. Allocated memory was 203.9 MB in the beginning and 235.4 MB in the end (delta: 31.5 MB). Free memory was 169.1 MB in the beginning and 155.3 MB in the end (delta: 13.8 MB). Peak memory consumption was 45.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * 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: 14]: Loop Invariant [2019-10-14 23:14:02,970 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2019-10-14 23:14:02,971 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2019-10-14 23:14:02,971 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2019-10-14 23:14:02,971 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2019-10-14 23:14:02,971 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:14:02,972 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2019-10-14 23:14:02,972 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2019-10-14 23:14:02,972 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2019-10-14 23:14:02,972 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_10,QUANTIFIED] [2019-10-14 23:14:02,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (\exists v_main_~i~0_10 : int :: (v_main_~i~0_10 < 1024 && i <= v_main_~i~0_10 + 1) && v_main_~i~0_10 == unknown-#memory_int-unknown[A][v_main_~i~0_10 * 4 + A]) || i == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. Result: SAFE, OverallTime: 4.2s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 24 SDslu, 67 SDs, 0 SdLazy, 103 SolverSat, 12 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s 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, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 88 HoareAnnotationTreeSize, 11 FomulaSimplifications, 50 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 120 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 112 ConstructedInterpolants, 2 QuantifiedInterpolants, 3981 SizeOfPredicates, 8 NumberOfNonLiveVariables, 167 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 9/28 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...