/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loops/sum04-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 21:46:19,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 21:46:19,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 21:46:19,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 21:46:19,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 21:46:19,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 21:46:19,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 21:46:19,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 21:46:19,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 21:46:19,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 21:46:19,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 21:46:19,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 21:46:19,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 21:46:19,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 21:46:19,556 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 21:46:19,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 21:46:19,558 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 21:46:19,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 21:46:19,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 21:46:19,564 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 21:46:19,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 21:46:19,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 21:46:19,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 21:46:19,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 21:46:19,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 21:46:19,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 21:46:19,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 21:46:19,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 21:46:19,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 21:46:19,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 21:46:19,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 21:46:19,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 21:46:19,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 21:46:19,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 21:46:19,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 21:46:19,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 21:46:19,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 21:46:19,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 21:46:19,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 21:46:19,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 21:46:19,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 21:46:19,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 21:46:19,602 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 21:46:19,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 21:46:19,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 21:46:19,619 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 21:46:19,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 21:46:19,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 21:46:19,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 21:46:19,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 21:46:19,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 21:46:19,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 21:46:19,621 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 21:46:19,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 21:46:19,622 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 21:46:19,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 21:46:19,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 21:46:19,622 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 21:46:19,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 21:46:19,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 21:46:19,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 21:46:19,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 21:46:19,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 21:46:19,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 21:46:19,624 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 21:46:20,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 21:46:20,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 21:46:20,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 21:46:20,050 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 21:46:20,051 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 21:46:20,051 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum04-2.i [2020-10-23 21:46:20,146 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/919ea3a30/c92d6ea0bd0f43adb4c09443e4d40e5b/FLAG47fc8ff1c [2020-10-23 21:46:20,856 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 21:46:20,857 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum04-2.i [2020-10-23 21:46:20,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/919ea3a30/c92d6ea0bd0f43adb4c09443e4d40e5b/FLAG47fc8ff1c [2020-10-23 21:46:21,216 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/919ea3a30/c92d6ea0bd0f43adb4c09443e4d40e5b [2020-10-23 21:46:21,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 21:46:21,234 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 21:46:21,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 21:46:21,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 21:46:21,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 21:46:21,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:46:21" (1/1) ... [2020-10-23 21:46:21,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@668df651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:46:21, skipping insertion in model container [2020-10-23 21:46:21,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:46:21" (1/1) ... [2020-10-23 21:46:21,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 21:46:21,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 21:46:21,437 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 21:46:21,448 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 21:46:21,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 21:46:21,478 INFO L208 MainTranslator]: Completed translation [2020-10-23 21:46:21,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:46:21 WrapperNode [2020-10-23 21:46:21,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 21:46:21,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 21:46:21,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 21:46:21,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 21:46:21,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:46:21" (1/1) ... [2020-10-23 21:46:21,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:46:21" (1/1) ... [2020-10-23 21:46:21,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:46:21" (1/1) ... [2020-10-23 21:46:21,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:46:21" (1/1) ... [2020-10-23 21:46:21,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:46:21" (1/1) ... [2020-10-23 21:46:21,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:46:21" (1/1) ... [2020-10-23 21:46:21,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:46:21" (1/1) ... [2020-10-23 21:46:21,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 21:46:21,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 21:46:21,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 21:46:21,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 21:46:21,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:46:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 21:46:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 21:46:21,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 21:46:21,616 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 21:46:21,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 21:46:21,616 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 21:46:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 21:46:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 21:46:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-23 21:46:21,617 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-23 21:46:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 21:46:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 21:46:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 21:46:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 21:46:21,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 21:46:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 21:46:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 21:46:21,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 21:46:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 21:46:21,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 21:46:21,853 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 21:46:21,854 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 21:46:21,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:46:21 BoogieIcfgContainer [2020-10-23 21:46:21,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 21:46:21,863 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 21:46:21,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 21:46:21,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 21:46:21,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:46:21" (1/3) ... [2020-10-23 21:46:21,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab54d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:46:21, skipping insertion in model container [2020-10-23 21:46:21,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:46:21" (2/3) ... [2020-10-23 21:46:21,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ab54d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:46:21, skipping insertion in model container [2020-10-23 21:46:21,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:46:21" (3/3) ... [2020-10-23 21:46:21,880 INFO L111 eAbstractionObserver]: Analyzing ICFG sum04-2.i [2020-10-23 21:46:21,916 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 21:46:21,942 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 21:46:21,975 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 21:46:22,038 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 21:46:22,038 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 21:46:22,038 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 21:46:22,038 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 21:46:22,038 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 21:46:22,039 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 21:46:22,039 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 21:46:22,039 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 21:46:22,065 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-10-23 21:46:22,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-23 21:46:22,087 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:46:22,088 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 21:46:22,089 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:46:22,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:46:22,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1142825126, now seen corresponding path program 1 times [2020-10-23 21:46:22,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:46:22,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417634012] [2020-10-23 21:46:22,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:46:22,218 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 21:46:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:46:22,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:46:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:46:22,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:46:22,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417634012] [2020-10-23 21:46:22,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:46:22,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 21:46:22,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405991464] [2020-10-23 21:46:22,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 21:46:22,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:46:22,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 21:46:22,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 21:46:22,498 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 4 states. [2020-10-23 21:46:22,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:46:22,678 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2020-10-23 21:46:22,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-23 21:46:22,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-10-23 21:46:22,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:46:22,689 INFO L225 Difference]: With dead ends: 53 [2020-10-23 21:46:22,690 INFO L226 Difference]: Without dead ends: 30 [2020-10-23 21:46:22,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 21:46:22,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-23 21:46:22,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2020-10-23 21:46:22,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-23 21:46:22,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2020-10-23 21:46:22,745 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 21 [2020-10-23 21:46:22,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:46:22,745 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2020-10-23 21:46:22,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 21:46:22,746 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-10-23 21:46:22,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-23 21:46:22,747 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 21:46:22,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 21:46:22,748 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 21:46:22,748 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 21:46:22,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 21:46:22,749 INFO L82 PathProgramCache]: Analyzing trace with hash -374088465, now seen corresponding path program 1 times [2020-10-23 21:46:22,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 21:46:22,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976520593] [2020-10-23 21:46:22,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 21:46:24,964 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation PRECISE [2020-10-23 21:46:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:46:25,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 21:46:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 21:46:25,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 21:46:25,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976520593] [2020-10-23 21:46:25,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 21:46:25,803 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-23 21:46:25,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613062567] [2020-10-23 21:46:25,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 21:46:25,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 21:46:25,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 21:46:25,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-10-23 21:46:25,807 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 14 states. [2020-10-23 21:46:26,510 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2020-10-23 21:46:26,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 21:46:26,609 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2020-10-23 21:46:26,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-23 21:46:26,610 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 26 [2020-10-23 21:46:26,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 21:46:26,611 INFO L225 Difference]: With dead ends: 28 [2020-10-23 21:46:26,611 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 21:46:26,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2020-10-23 21:46:26,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 21:46:26,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 21:46:26,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 21:46:26,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 21:46:26,615 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2020-10-23 21:46:26,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 21:46:26,615 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 21:46:26,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 21:46:26,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 21:46:26,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 21:46:26,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 21:46:26,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 21:46:27,390 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 12) the Hoare annotation is: true [2020-10-23 21:46:27,390 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-10-23 21:46:27,391 INFO L277 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-10-23 21:46:27,391 INFO L277 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-10-23 21:46:27,391 INFO L277 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-10-23 21:46:27,391 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: true [2020-10-23 21:46:27,391 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 21:46:27,391 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-23 21:46:27,392 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2020-10-23 21:46:27,392 INFO L277 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-10-23 21:46:27,392 INFO L277 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-10-23 21:46:27,393 INFO L277 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-10-23 21:46:27,394 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-10-23 21:46:27,394 INFO L277 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-10-23 21:46:27,394 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-23 21:46:27,394 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-23 21:46:27,394 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 21:46:27,394 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 21:46:27,394 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-23 21:46:27,395 INFO L277 CegarLoopResult]: At program point mainENTRY(lines 22 28) the Hoare annotation is: true [2020-10-23 21:46:27,396 INFO L270 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (or (and (<= main_~i~0 8) (or (and (<= main_~sn~0 4) (<= 3 main_~i~0) (<= main_~i~0 3) (<= 4 main_~sn~0)) (and (= main_~i~0 2) (= 2 main_~sn~0)) (and (<= (+ (div (+ main_~sn~0 (- 7)) 2) 5) main_~i~0) (<= 4 main_~i~0) (<= main_~i~0 (+ (div (+ main_~sn~0 (- 6)) 2) 4))))) (and (= main_~sn~0 0) (= main_~i~0 1))) [2020-10-23 21:46:27,397 INFO L277 CegarLoopResult]: At program point mainEXIT(lines 22 28) the Hoare annotation is: true [2020-10-23 21:46:27,401 INFO L270 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (= main_~sn~0 0) [2020-10-23 21:46:27,402 INFO L277 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-10-23 21:46:27,402 INFO L270 CegarLoopResult]: At program point L24-3(lines 24 26) the Hoare annotation is: (and (<= main_~i~0 8) (or (and (<= 2 main_~i~0) (<= main_~sn~0 4) (<= main_~i~0 2) (<= 4 main_~sn~0)) (and (= main_~i~0 1) (= 2 main_~sn~0)) (and (<= (+ (div (+ main_~sn~0 (- 7)) 2) 4) main_~i~0) (<= 3 main_~i~0) (<= main_~i~0 (+ (div (+ main_~sn~0 (- 6)) 2) 3))))) [2020-10-23 21:46:27,402 INFO L270 CegarLoopResult]: At program point L24-4(line 24) the Hoare annotation is: (and (<= main_~i~0 8) (or (and (<= 2 main_~i~0) (<= main_~sn~0 4) (<= main_~i~0 2) (<= 4 main_~sn~0)) (and (= main_~i~0 1) (= 2 main_~sn~0)) (and (<= (+ (div (+ main_~sn~0 (- 7)) 2) 4) main_~i~0) (<= 3 main_~i~0) (<= main_~i~0 (+ (div (+ main_~sn~0 (- 6)) 2) 3)))) (= |main_#t~post3| main_~i~0)) [2020-10-23 21:46:27,403 INFO L270 CegarLoopResult]: At program point L24-5(line 24) the Hoare annotation is: (and (<= |main_#t~post3| 8) (or (and (<= |main_#t~post3| (+ (div (+ main_~sn~0 (- 6)) 2) 3)) (<= (+ (div (+ main_~sn~0 (- 7)) 2) 4) |main_#t~post3|) (<= 3 |main_#t~post3|)) (and (= 2 main_~sn~0) (= |main_#t~post3| 1)) (and (<= |main_#t~post3| 2) (<= main_~sn~0 4) (<= 2 |main_#t~post3|) (<= 4 main_~sn~0))) (= (+ |main_#t~post3| 1) main_~i~0)) [2020-10-23 21:46:27,403 INFO L270 CegarLoopResult]: At program point L24-6(lines 24 26) the Hoare annotation is: (or (and (or (and (<= main_~sn~0 4) (<= 3 main_~i~0) (<= main_~i~0 3) (<= 4 main_~sn~0)) (and (= main_~i~0 2) (= 2 main_~sn~0)) (and (<= (+ (div (+ main_~sn~0 (- 7)) 2) 5) main_~i~0) (<= 4 main_~i~0) (<= main_~i~0 (+ (div (+ main_~sn~0 (- 6)) 2) 4)))) (<= main_~i~0 9)) (and (= main_~sn~0 0) (= main_~i~0 1))) [2020-10-23 21:46:27,403 INFO L270 CegarLoopResult]: At program point L24-7(lines 24 26) the Hoare annotation is: (and (<= (+ (div (+ main_~sn~0 (- 7)) 2) 5) main_~i~0) (<= main_~i~0 (+ (div (+ main_~sn~0 (- 6)) 2) 4)) (< 8 main_~i~0) (<= main_~i~0 9)) [2020-10-23 21:46:27,403 INFO L277 CegarLoopResult]: At program point mainFINAL(lines 22 28) the Hoare annotation is: true [2020-10-23 21:46:27,403 INFO L270 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (or (not (< 15 main_~sn~0)) (not (<= main_~sn~0 16)) (= |__VERIFIER_assert_#in~cond| 0)) [2020-10-23 21:46:27,404 INFO L270 CegarLoopResult]: At program point L15(lines 15 17) the Hoare annotation is: (or (not (< 15 main_~sn~0)) (not (<= main_~sn~0 16)) (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-10-23 21:46:27,404 INFO L270 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (or (not (< 15 main_~sn~0)) (not (<= main_~sn~0 16)) (= |__VERIFIER_assert_#in~cond| 0)) [2020-10-23 21:46:27,404 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 14 19) the Hoare annotation is: true [2020-10-23 21:46:27,405 INFO L277 CegarLoopResult]: At program point L15-2(lines 14 19) the Hoare annotation is: true [2020-10-23 21:46:27,405 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 14 19) the Hoare annotation is: true [2020-10-23 21:46:27,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:46:27 BoogieIcfgContainer [2020-10-23 21:46:27,431 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 21:46:27,433 INFO L168 Benchmark]: Toolchain (without parser) took 6208.71 ms. Allocated memory is still 158.3 MB. Free memory was 135.5 MB in the beginning and 131.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 85.4 MB. Max. memory is 8.0 GB. [2020-10-23 21:46:27,434 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory was 103.6 MB in the beginning and 103.5 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 21:46:27,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.70 ms. Allocated memory is still 158.3 MB. Free memory was 134.9 MB in the beginning and 125.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 21:46:27,436 INFO L168 Benchmark]: Boogie Preprocessor took 36.04 ms. Allocated memory is still 158.3 MB. Free memory was 125.7 MB in the beginning and 124.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 21:46:27,438 INFO L168 Benchmark]: RCFGBuilder took 343.99 ms. Allocated memory is still 158.3 MB. Free memory was 124.2 MB in the beginning and 111.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-23 21:46:27,439 INFO L168 Benchmark]: TraceAbstraction took 5568.46 ms. Allocated memory is still 158.3 MB. Free memory was 110.8 MB in the beginning and 131.5 MB in the end (delta: -20.7 MB). Peak memory consumption was 61.3 MB. Max. memory is 8.0 GB. [2020-10-23 21:46:27,443 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory was 103.6 MB in the beginning and 103.5 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 242.70 ms. Allocated memory is still 158.3 MB. Free memory was 134.9 MB in the beginning and 125.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.04 ms. Allocated memory is still 158.3 MB. Free memory was 125.7 MB in the beginning and 124.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 343.99 ms. Allocated memory is still 158.3 MB. Free memory was 124.2 MB in the beginning and 111.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5568.46 ms. Allocated memory is still 158.3 MB. Free memory was 110.8 MB in the beginning and 131.5 MB in the end (delta: -20.7 MB). Peak memory consumption was 61.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 24]: Loop Invariant Derived loop invariant: ((((((sn <= 4 && 3 <= i) && i <= 3) && 4 <= sn) || (i == 2 && 2 == sn)) || (((sn + -7) / 2 + 5 <= i && 4 <= i) && i <= (sn + -6) / 2 + 4)) && i <= 9) || (sn == 0 && i == 1) - ProcedureContractResult [Line: 12]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 22]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 45 SDtfs, 42 SDslu, 92 SDs, 0 SdLazy, 108 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 48 PreInvPairs, 57 NumberOfFragments, 377 HoareAnnotationTreeSize, 48 FomulaSimplifications, 216 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 36 FomulaSimplificationsInter, 472 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...