/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/ldv-regression/test_while_int.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:07:23,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:07:23,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:07:23,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 18:07:23,693 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 18:07:23,716 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:07:23,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:07:23,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:07:23,721 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:07:23,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:07:23,722 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:07:23,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:07:23,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:07:23,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:07:23,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:07:23,723 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:07:23,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:07:23,724 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:07:23,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:07:23,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:07:23,725 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:07:23,725 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:07:23,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:07:23,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:07:23,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:07:23,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:07:23,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:07:23,726 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:07:24,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:07:24,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:07:24,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:07:24,151 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:07:24,152 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:07:24,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i [2021-02-23 18:07:24,233 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb78b47e3/25826ca69ece4480a487803b0a785d0e/FLAGd70ef4377 [2021-02-23 18:07:24,747 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:07:24,748 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i [2021-02-23 18:07:24,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb78b47e3/25826ca69ece4480a487803b0a785d0e/FLAGd70ef4377 [2021-02-23 18:07:25,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb78b47e3/25826ca69ece4480a487803b0a785d0e [2021-02-23 18:07:25,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:07:25,139 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:07:25,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:07:25,141 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:07:25,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:07:25,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:07:25" (1/1) ... [2021-02-23 18:07:25,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548b6d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:25, skipping insertion in model container [2021-02-23 18:07:25,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:07:25" (1/1) ... [2021-02-23 18:07:25,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:07:25,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:07:25,373 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i[300,313] [2021-02-23 18:07:25,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:07:25,434 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:07:25,450 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i[300,313] [2021-02-23 18:07:25,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:07:25,474 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:07:25,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:25 WrapperNode [2021-02-23 18:07:25,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:07:25,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:07:25,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:07:25,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:07:25,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:25" (1/1) ... [2021-02-23 18:07:25,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:25" (1/1) ... [2021-02-23 18:07:25,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:25" (1/1) ... [2021-02-23 18:07:25,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:25" (1/1) ... [2021-02-23 18:07:25,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:25" (1/1) ... [2021-02-23 18:07:25,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:25" (1/1) ... [2021-02-23 18:07:25,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:25" (1/1) ... [2021-02-23 18:07:25,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:07:25,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:07:25,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:07:25,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:07:25,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:25" (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 [2021-02-23 18:07:25,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:07:25,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:07:25,650 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:07:25,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2021-02-23 18:07:25,650 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:07:25,650 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:07:25,651 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:07:25,651 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:07:25,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:07:25,651 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2021-02-23 18:07:25,651 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:07:25,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:07:25,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:07:25,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:07:25,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:07:25,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:07:25,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:07:25,939 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:07:25,940 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 18:07:25,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:07:25 BoogieIcfgContainer [2021-02-23 18:07:25,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:07:25,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:07:25,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:07:25,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:07:25,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:07:25" (1/3) ... [2021-02-23 18:07:25,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362cd2c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:07:25, skipping insertion in model container [2021-02-23 18:07:25,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:07:25" (2/3) ... [2021-02-23 18:07:25,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362cd2c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:07:25, skipping insertion in model container [2021-02-23 18:07:25,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:07:25" (3/3) ... [2021-02-23 18:07:25,951 INFO L111 eAbstractionObserver]: Analyzing ICFG test_while_int.c_1.i [2021-02-23 18:07:25,958 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:07:25,962 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:07:25,983 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:07:26,013 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:07:26,014 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:07:26,014 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:07:26,014 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:07:26,014 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:07:26,014 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:07:26,014 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:07:26,015 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:07:26,090 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2021-02-23 18:07:26,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-02-23 18:07:26,113 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:07:26,114 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] [2021-02-23 18:07:26,115 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:07:26,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:07:26,128 INFO L82 PathProgramCache]: Analyzing trace with hash 2063667912, now seen corresponding path program 1 times [2021-02-23 18:07:26,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:07:26,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942225344] [2021-02-23 18:07:26,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:07:26,213 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:07:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:07:26,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:26,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:07:26,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:26,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:07:26,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:26,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:07:26,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:26,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:07:26,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:26,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:07:26,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:07:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:07:26,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:26,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:07:26,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:07:26,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942225344] [2021-02-23 18:07:26,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:07:26,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 18:07:26,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410049863] [2021-02-23 18:07:26,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 18:07:26,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:07:26,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 18:07:26,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-02-23 18:07:26,564 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2021-02-23 18:07:26,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:07:26,850 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2021-02-23 18:07:26,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-23 18:07:26,852 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2021-02-23 18:07:26,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:07:26,860 INFO L225 Difference]: With dead ends: 50 [2021-02-23 18:07:26,860 INFO L226 Difference]: Without dead ends: 29 [2021-02-23 18:07:26,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-02-23 18:07:26,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-02-23 18:07:26,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2021-02-23 18:07:26,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-02-23 18:07:26,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-02-23 18:07:26,911 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 20 [2021-02-23 18:07:26,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:07:26,912 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-02-23 18:07:26,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 18:07:26,912 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-02-23 18:07:26,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-02-23 18:07:26,913 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:07:26,914 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:07:26,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:07:26,914 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:07:26,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:07:26,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1997383635, now seen corresponding path program 1 times [2021-02-23 18:07:26,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:07:26,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1398058899] [2021-02-23 18:07:26,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:07:29,089 WARN L141 QuantifierPusher]: treesize reduction 23, result has 68.9 percent of original size [2021-02-23 18:07:29,117 WARN L147 QuantifierPusher]: treesize reduction 23, result has 68.9 percent of original size 51 [2021-02-23 18:07:29,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:29,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-23 18:07:29,186 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 18:07:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:07:29,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:29,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:07:29,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:29,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:07:29,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:29,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:07:29,299 WARN L141 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size [2021-02-23 18:07:29,301 WARN L147 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size 7 [2021-02-23 18:07:29,302 WARN L141 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size [2021-02-23 18:07:29,303 WARN L147 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size 7 [2021-02-23 18:07:29,314 WARN L141 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size [2021-02-23 18:07:29,315 WARN L147 QuantifierPusher]: treesize reduction 3, result has 70.0 percent of original size 7 [2021-02-23 18:07:29,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:29,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:07:29,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:07:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:07:29,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:29,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:07:29,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:07:29,382 WARN L141 QuantifierPusher]: treesize reduction 3, result has 92.9 percent of original size [2021-02-23 18:07:29,384 WARN L147 QuantifierPusher]: treesize reduction 3, result has 92.9 percent of original size 39 [2021-02-23 18:07:29,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:29,388 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:07:29,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:29,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-23 18:07:29,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-23 18:07:29,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:29,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-23 18:07:29,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:29,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-23 18:07:29,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:29,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 18:07:29,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:29,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-23 18:07:29,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:07:29,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-23 18:07:29,551 WARN L141 QuantifierPusher]: treesize reduction 10, result has 9.1 percent of original size [2021-02-23 18:07:29,551 WARN L147 QuantifierPusher]: treesize reduction 10, result has 9.1 percent of original size 1 [2021-02-23 18:07:29,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1398058899] [2021-02-23 18:07:29,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:07:29,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 18:07:29,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431112845] [2021-02-23 18:07:29,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 18:07:29,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:07:29,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 18:07:29,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-02-23 18:07:29,555 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 10 states. [2021-02-23 18:07:30,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:07:30,003 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2021-02-23 18:07:30,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 18:07:30,004 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2021-02-23 18:07:30,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:07:30,004 INFO L225 Difference]: With dead ends: 26 [2021-02-23 18:07:30,004 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 18:07:30,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-02-23 18:07:30,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 18:07:30,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 18:07:30,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 18:07:30,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 18:07:30,009 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-02-23 18:07:30,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:07:30,009 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 18:07:30,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 18:07:30,009 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 18:07:30,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 18:07:30,010 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:07:30,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 18:07:30,404 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 18:07:30,404 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 18:07:30,404 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 18:07:30,405 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-23 18:07:30,405 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-23 18:07:30,405 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:07:30,405 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-23 18:07:30,405 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 18:07:30,405 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-23 18:07:30,405 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-23 18:07:30,406 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-23 18:07:30,406 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-23 18:07:30,406 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:07:30,406 INFO L192 CegarLoopUtils]: At program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: true [2021-02-23 18:07:30,406 INFO L192 CegarLoopUtils]: At program point __blast_assertEXIT(lines 6 9) the Hoare annotation is: true [2021-02-23 18:07:30,406 INFO L192 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: true [2021-02-23 18:07:30,407 INFO L192 CegarLoopUtils]: At program point __blast_assertFINAL(lines 6 9) the Hoare annotation is: true [2021-02-23 18:07:30,407 INFO L192 CegarLoopUtils]: At program point __blast_assertENTRY(lines 6 9) the Hoare annotation is: true [2021-02-23 18:07:30,407 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 18:07:30,407 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 18:07:30,407 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 18:07:30,407 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 18:07:30,407 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 13 24) the Hoare annotation is: true [2021-02-23 18:07:30,408 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 13 24) the Hoare annotation is: true [2021-02-23 18:07:30,408 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (or (= main_~i~0 1) (and (<= 2 main_~i~0) (<= main_~i~0 2))) [2021-02-23 18:07:30,408 INFO L185 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: (or (= main_~i~0 0) (= main_~i~0 1)) [2021-02-23 18:07:30,408 INFO L185 CegarLoopUtils]: At program point L18-2(line 18) the Hoare annotation is: false [2021-02-23 18:07:30,408 INFO L185 CegarLoopUtils]: At program point L16-1(line 16) the Hoare annotation is: (let ((.cse0 (= |main_#t~post7| main_~i~0))) (or (and (= main_~i~0 0) .cse0) (and .cse0 (= main_~i~0 1)))) [2021-02-23 18:07:30,409 INFO L185 CegarLoopUtils]: At program point L18-3(lines 15 22) the Hoare annotation is: (or (= main_~i~0 0) (= main_~i~0 1) (and (<= 2 main_~i~0) (<= main_~i~0 2))) [2021-02-23 18:07:30,409 INFO L185 CegarLoopUtils]: At program point L16-2(line 16) the Hoare annotation is: (and (= (+ |main_#t~post7| 1) main_~i~0) (or (= |main_#t~post7| 0) (and (<= |main_#t~post7| 1) (<= 1 |main_#t~post7|)))) [2021-02-23 18:07:30,409 INFO L192 CegarLoopUtils]: At program point L15-2(lines 15 22) the Hoare annotation is: true [2021-02-23 18:07:30,409 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 13 24) the Hoare annotation is: true [2021-02-23 18:07:30,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 06:07:30 BoogieIcfgContainer [2021-02-23 18:07:30,426 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 18:07:30,428 INFO L168 Benchmark]: Toolchain (without parser) took 5297.73 ms. Allocated memory was 152.0 MB in the beginning and 184.5 MB in the end (delta: 32.5 MB). Free memory was 129.3 MB in the beginning and 124.0 MB in the end (delta: 5.3 MB). Peak memory consumption was 100.1 MB. Max. memory is 8.0 GB. [2021-02-23 18:07:30,428 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 18:07:30,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.96 ms. Allocated memory is still 152.0 MB. Free memory was 128.2 MB in the beginning and 119.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 18:07:30,430 INFO L168 Benchmark]: Boogie Preprocessor took 62.80 ms. Allocated memory is still 152.0 MB. Free memory was 119.0 MB in the beginning and 117.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 18:07:30,431 INFO L168 Benchmark]: RCFGBuilder took 401.55 ms. Allocated memory is still 152.0 MB. Free memory was 117.7 MB in the beginning and 105.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-23 18:07:30,432 INFO L168 Benchmark]: TraceAbstraction took 4482.57 ms. Allocated memory was 152.0 MB in the beginning and 184.5 MB in the end (delta: 32.5 MB). Free memory was 104.7 MB in the beginning and 124.0 MB in the end (delta: -19.3 MB). Peak memory consumption was 76.0 MB. Max. memory is 8.0 GB. [2021-02-23 18:07:30,436 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 334.96 ms. Allocated memory is still 152.0 MB. Free memory was 128.2 MB in the beginning and 119.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 62.80 ms. Allocated memory is still 152.0 MB. Free memory was 119.0 MB in the beginning and 117.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 401.55 ms. Allocated memory is still 152.0 MB. Free memory was 117.7 MB in the beginning and 105.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4482.57 ms. Allocated memory was 152.0 MB in the beginning and 184.5 MB in the end (delta: 32.5 MB). Free memory was 104.7 MB in the beginning and 124.0 MB in the end (delta: -19.3 MB). Peak memory consumption was 76.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: (i == 0 || i == 1) || (2 <= i && i <= 2) - ProcedureContractResult [Line: 6]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 SDtfs, 35 SDslu, 124 SDs, 0 SdLazy, 83 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 29 LocationsWithAnnotation, 34 PreInvPairs, 49 NumberOfFragments, 118 HoareAnnotationTreeSize, 34 FomulaSimplifications, 331 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 29 FomulaSimplificationsInter, 369 FormulaSimplificationTreeSizeReductionInter, 0.2s 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...